For Welding Professionals Hardfacing Welding Consumables Cored wires to increase wear resistance of parts
Our company Quality & innovation Industry solutions World class cored wire manufacturing Work hardening manganese steels Impact and metal-to-metal wear resistance Low & medium alloyed steels Moderate abrasion and impact resistance Tool steels Impact, mechanical and thermal fatigue resistance Highly alloyed steels with hard phases Extreme abrasion resistance with or without impact Tungsten carbides Extreme abrasion resistance Thermal arc spraying wire Abrasion, erosion, temperature and corrosion resistance Ferritic & martensitic stainless steels Thermal fatigue and corrosion resistance Nickel based alloys High temperature and thermal shock resistance Cobalt based alloys Severe friction, temperature and corrosion resistance Packaging Our global footprint 1 2 3 4 6 10 14 18 22 26 30 34 38 42 43 Contents
welding-alloys.com 1 Welding Alloys has been a global leader in the production of advanced welding consumables for more than 50 years. We provide innovative wear protection solutions for even the most challenging service conditions, in a range of industries. Complementary to our welding consumables, we manufacture a range of automated equipment for hardfacing, joining and cladding. We also offer engineered wear services in our workshops, or in situ, as well as a wide range of wear plates, pipes and components. Since 1966, the Welding Alloys name has been synonymous with excellence in research and development (R&D), resulting in a steady stream of innovative products and advanced technical solutions and services. Welding Alloys is a participating member of the United Nations Global Compact and supports all principles relating to the environment, labour, human rights, and anti-corruption. Reflecting this, we have developed welding wires that emit less harmful fumes, and we manufacture a range of our wires using processes that produce less harmful waste for the environment. We continue to improve our products and processes in order to reduce the negative impact on both the welder and the environment. Our company
Quality & innovation Welding Alloys has a wealth of experience and expertise in the design and manufacture of flux and metal cored welding wires. We have globally located R&D teams capable of designing a large range of hardfacing cored wires, based on a culture of continuous development and innovation. Since inception in 1966, innovation has always played a key role at Welding Alloys. We partner with customers globally to develop new opportunities and unique solutions. Our R&D and technical teams remain at the heart of the business, able to solve the most complex industrial wear protection challenges. We have total control over design, development and production. Our wires are produced using our own manufacturing equipment, which is installed in our production plants worldwide. This means we can ensure the highest quality is maintained throughout the manufacturing process. We pride ourselves on our stringent quality control measures. Regular laboratory tests and quality checks are carried out at various stages of production. Welding Alloys backs its products and services with teams of technical experts active in 150 countries across the world who work closely with customers to deliver bestin-class solutions to every major industrial sector. welding-alloys.com 2 Innovation is at the core of everything we do, we never stop learning.
Industry solutions Welding Alloys offers the widest range of hardfacing cored wires. Our solutions are customer-based with a focus on the reduction of total cost of ownership. This is achieved by taking the time to understand our customers’ operational requirements, needs and expectations, and delivering bespoke solutions focused on reducing maintenance costs and increasing the service life of parts. Welding Alloys provides solutions in a range of different industries, including but not limited to: • Cement • Steel Making • Sugar • Power • Mining, Quarries & Earthmoving • Recycling & Waste • Petrochemical, Oil & Gas • Railways • Hydropower • Agriculture & Food • Pulp & Paper • Forging welding-alloys.com 3 Cement: hardfacing of a mill table Mining: hardfaced excavator bucket Steel: hardfaced continuous casting roll Sugar: hardfacing of a crushing roll Back to contents page
welding-alloys.com 4 6 8 4 5 9 1 2 World class cored wire manufacturing 1. Strip raw material Different strip material and dimensions are used depending on the type of wire being manufactured. 2. Powder mix preparation Welding Alloys blend management software provides a list, with quantities of each powder to obtain the required weld metal composition. 3. Powder mixing The powders are mixed to produce a homogeneous blend throughout the batch. Some powders are mixed with binders to prevent segregation and improve weldability. Different mixers are used depending on the wire being produced to prevent cross contamination of elements. 4. Strip forming and powder feeding The strip is formed into a U-shape ready to receive the powder. The strip powder ratio is continuously controlled; the right combination of the strip and the powder is what allows us to obtain the required chemical composition of the weld metal. 5. Wire rolling The wire is closed to form an O-shape (our seamless cored wires are laser butt welded). The wire then goes through the rolling process to reduce the diameter and compact the powder.
welding-alloys.com 5 10 3 7 6. Heat treatment Certain wires are baked to remove moisture and oil from them before the final finishing and packing. Some wires require special baking in atmosphere controlled ovens. 7. Wire drawing Wire drawing uses calibrated dies to produce a round wire with excellent control of the diameter. The addition of lubricants and rust protectors improves the feedability and storage life of the wires. 8. Drum packing Different options are available: rotary, static or twist free, depending on the wire dimensions and customers’ requirements. 9. Spooling The wires are precision layer wound to control cast and helix in order to improve feedability. 10. Packaging A range of packaging options are available depending on the customer’s needs. Carefully chosen packaging material prevents moisture pickup during transport and storage. Back to contents page
welding-alloys.com 6 Rail crossing repair with HARDFACE AP-O.
welding-alloys.com 7 Work hardening manganese steels Austenitic Mn steels and Austenitic CrMn steels have the ability to rapidly work harden under impact loading, which makes them a great solution for a number of applications. Cored wires with a high content of alloying elements (e.g. HARDFACE 19 9 6 and HARDFACE AP) are easily applicable and their weld metal deposits are well known for their high tolerance to dilution and cracks. Thanks to these properties, they can be deposited directly to low or medium alloy substrates, with no risk of forming a martensitic structure at the interface. Product Composition [%] - Fe balance Hardness - 3 layers C Mn Si Cr Ni as welded work hardened HARDFACE 19 9 6 0.1 6 0.5 19 9 180 HB 45 - 50 HRC HARDFACE AP 0.4 16 0.6 14 210 HB 45 - 55 HRC HARDFACE NM 1 14 0.1 3.5 0.8 220 HB 46 - 50 HRC HARDFACE NM14 1 14 0.5 200 HB 44 - 48 HRC HARDFACE MAX IMPACT 0.8 20 0.4 2.5 1 250 HB 45 - 55 HRC The technical datasheets for these products are available on our website. The safety datasheets are also available on request. Their multi-purpose nature makes them an ideal choice for a number of applications (build up, buffer layer or hardfacing). Products that have a similar chemical analysis to Hadfield 13% Mn steels must be applied with care. This is due to their intrinsic susceptibility to embrittlement when exposed to interpass temperatures higher than ~150°C. Their resistance to gouging abrasion is exceptional and unique, but special care should be adopted when applying these types of cored wires. Back to contents page
welding-alloys.com 8 Work hardening manganese steels selection guide Product Welding process Standard diameters [mm] EN 14700 standard Metal-to-metal friction Mineral abrasion Abrasion under pressure Hot abrasion Erosion Cavitation Impact Mechanical fatigue HARDFACE 19 9 6 -O 1.2 - 3.2 T Fe10 u u u u -G 1.2 - 2.4 -S 2.0 - 3.2 HARDFACE AP -O 1.2 - 3.2 T Fe9 u u u u -G 1.2 - 2.4 -S 2.4 - 3.2 HARDFACE NM -O 1.2 - 2.8 T Fe9 u u u u -G 1.2 - 2.4 HARDFACE NM14 -O 1.2 - 2.8 T Fe9 u u u u u u -G 1.2 - 2.4 HARDFACE MAX IMPACT -O 1.6 - 3.2 T Fe9 u u u u u u u u suitable u u highly suitable Gas shielded (-G) Open arc / self shielded (-O) Submerged arc (-S)
welding-alloys.com 9 Thermal fatigue Hot oxidation Corrosion Cutting Work hardening Machining Description and applications u u u u Strong tough austenitic weld metal composition that work hardens. Work hardening rate is lower than 13% Mn steel. Weld metal has excellent crack resistance with high tolerance to dilution. Suitable to use as a buffer layer before hardfacing, particularly on manganese steels and 'hard to weld' steels. Applications: steel mill rolls, tram / train rails and crossings, high speed forming rolls. u u u Non-magnetic deposit highly resistant to impact and pressure. High rate of work hardening. Multi-purpose cored wire. Economic ductile buffer layer prior to hardfacing with chromium carbide cored wires. Applications: repair works on railway frogs and crossings, hammers, bars, cones and jaws for crushers. u u u High rate of work hardening. Austenitic manganese steel deposit strongly resistant to impact and high pressure. Applications: reclaiming crusher jaws and rolls, gyratory mantles, blow bars, swing hammers, manganese dredge components such as buckets and tumblers. u u u Colour and structure of the deposit similar to Hadfield type 13% Mn steel. A buffer layer such as HARDFACE 19 9 6 or HARDFACE AP should be used prior to hardfacing low or medium alloyed steels with HARDFACE NM14. Applications: retouching of casting imperfections, parts undergoing high impact or heavy battering loads. u u u Non-magnetic deposit highly resistant to impact and pressure. Excellent work hardening properties. Applications: rebuilding components exposed to abrasion, high impact and heavy loads. Back to contents page
welding-alloys.com 10 In situ hardfacing operation of recycling shredders using HARDFACE L-O.
welding-alloys.com 11 Low & medium alloyed steels Bainitic and/or martensitic metal deposits are particularly suited for applications combining moderate abrasion and impact. These consumables are easy to apply and there is no restriction on the deposit thickness; they also have good machinability (depending on the final hardness). The addition of key elements, such as molybdenum, tungsten or vanadium will increase the performance of the welding deposit, leading to better metal-to-metal and temperature resistance. An example of this would be tool steel alloys (e.g. ROBODUR K 650-G, which offers a similar analysis to AISI H11 tool steel). Product Composition [%] - Fe balance Hardness 3 layers as welded C Mn Si Cr Mo V W HARDFACE B 0.1 1.5 0.4 1 260 HB HARDFACE T 0.15 1.5 1 1.5 360 HB HARDFACE P 0.2 2 1 3 400 HB HARDFACE L 0.5 1.7 2.2 8.5 55 - 60 HRC HARDFACE LP 0.5 1.9 1 7.5 55 - 60 HRC HARDFACE CHROMEFREE 0.5 1.2 0.9 2.8 3 50 - 56 HRC ROBODUR K 250 0.1 1.5 0.5 1.6 0.2 250 HB ROBODUR K 350 0.15 1.5 0.6 2 0.2 350 HB ROBODUR K 450 0.3 1.5 0.6 2.5 0.5 450 HB ROBODUR K 600 0.5 1.2 0.6 6 0.8 54 - 60 HRC ROBODUR K CERAMIC 0.35 0.6 2.5 9.5 55 - 60 HRC ROBODUR K 650 0.5 1.3 1.2 5.4 1.3 0.3 1.2 57 - 62 HRC The technical datasheets for these products are available on our website. The safety datasheets are also available on request. These folded and seamless wires can be applied manually, with automated welding machines or even with a robot. They offer excellent weldability, and depending on your needs and the application, Welding Alloys can provide the wire on spools, coils or even drums for larger quantity requirements. Welding Alloys also offer a non-coppered version of the ROBODUR K range. The ROBODUR F range maintains all the features and benefits of the copper version, but is manufactured using a ‘greener’ process (no copper electroplating). Back to contents page
welding-alloys.com 12 Low & medium alloyed steels selection guide Product Welding process Standard diameters [mm] EN 14700 standard Metal-to-metal friction Mineral abrasion Abrasion under pressure Hot abrasion Erosion Cavitation Impact Mechanical fatigue FOLDED CORED WIRES HARDFACE B -O 1.2 - 3.2 T Fe1 u u -S 2.4 - 3.2 HARDFACE T -O 1.2 - 3.2 T Fe1 u u -S 2.4 - 3.2 HARDFACE P -O 1.2 - 3.2 T Fe1 u u -S 2.4 - 3.2 HARDFACE L -O 1.2 - 3.2 T Fe8 u u u -G 1.2 - 2.4 -S 2.4 - 3.2 HARDFACE LP -G 1.2 - 1.6 T Fe8 u u u HARDFACE CHROMEFREE -G 1.2 - 1.6 T Z Fe2 u u u u SEAMLESS CORED WIRES ROBODUR K 250 -G 1.0 - 1.6 T Fe1 u u u ROBODUR K 350 -G 1.0 - 1.6 T Fe1 u u u ROBODUR K 450 -G 1.0 - 1.6 T Fe1 u u u ROBODUR K 600 -G 1.0 - 1.6 T Fe2 u u u u ROBODUR K CERAMIC -G 1.0 - 1.6 T Fe8 u u u u ROBODUR K 650 -G 1.0 - 1.6 T Fe8 u u u u u suitable u u highly suitable Gas shielded (-G) Open arc / self shielded (-O) Submerged arc (-S)
welding-alloys.com 13 Thermal fatigue Hot oxidation Corrosion Cutting Work hardening Machining Description and applications u u Bainitic and/or martensitic alloyed steels offering a crack-resistant deposit. Suitable for repairing, rebuilding and buffering many materials. Weld metal has excellent resistance to low abrasion combined with impact and compressive loads. Actual hardness of the weld metal deposit will highly depend on the base metal chemical analysis and the number of layers deposited. Applications: tractor and crane parts, track rollers, grousers, crusher hammers, shear blades, idlers, gear teeth. u u u u u u Similar applications as HARDFACE L-G or ROBODUR K CERAMIC-G, but with a rutile slag allowing all position welding. u Chromium and nickel free welding deposit. Bainitic and martensitic welding deposit offering excellent resistance to low abrasion combined with impact. Applications: similar to our cored wires that have a hardness of 600 HB (55 - 60 HRC) - same wear performance. u u Bainitic and/or martensitic alloyed steels offering a crack-resistant deposit. These wires can be used for repairing, rebuilding and buffering many materials. Weld metal has excellent resistance to low abrasion combined with impact and compressive loads. Actual hardness of the weld metal deposit will highly depend on the base metal chemical analysis and the number of layers deposited. These wires are also available without copper coating - our ROBODUR F range. Applications: tractor and crane parts, track rollers, grousers, crusher hammers, shear blades, idlers, gear teeth. u u u u u u u The overalloyed version of the ROBODUR K 600-G providing resistance to the combined effects of abrasion, impact, thermal fatigue and metal-to-metal wear. Also available without copper coating - our ROBODUR F range. Applications: bucket teeth, bucket lips, bulldozer blades, crusher jaws, scraper blades, chutes, pump housings, conveyor screws, slide plates, gear teeth, crusher hammers, drilling bits, ploughshares, dies, impact drills. Products with less harmful fumes or manufactured using a more sustainable process. Back to contents page
welding-alloys.com 14 Closed die forging fabrication using HARDFACE W-G.
welding-alloys.com 15 Tool steels Typically, these types of cored wires are used for high temperature forming in repeated cycles. This is because the welding deposit offers good resistance to the combined effects of thermal fatigue, plastic deformation and fretting. Depending on the chemical analysis, our consumables withstand a temperature range of 500-600°C without softening. Key elements such as molybdenum, vanadium, titanium and tungsten are added to ensure this. Welding Alloys has globally located R&D and technical teams, with decades of experience and industry knowledge. If you have a specific requirement, we are able to develop custom solutions suited to your needs (alloying elements and slag content). Product Composition [%] - Fe balance Hardness 3 layers as welded C Mn Si Cr Mo V Others HARDFACE AR 1.1 0.5 0.5 5 7.4 1.1 W: 2.3 57 - 63 HRC HARDFACE WLC 0.25 2 0.8 6.5 1.5 W: 1.6 42 - 46 HRC HARDFACE W 0.6 2 0.8 6.5 1.6 W: 1.6 52 - 56 HRC HARDFACE WM 0.3 0.4 0.3 2.4 0.6 W: 4.3 Ni: 0.25 43 - 48 HRC HARDFACE WMOLC 0.3 0.8 0.8 6.8 2 0.6 W: 2 50 - 53 HRC HARDFACE DCO 0.15 0.5 0.8 13.5 3 Ni: 0.6 Co: 13 45 - 52 HRC ROBOTOOL 46 0.2 1 0.5 5 4 Ti: 0.3 42 - 46 HRC ROBOTOOL 47 0.15 1 0.5 6 3.5 Ti: 0.3 40 - 44 HRC ROBOTOOL 58 0.35 1.3 0.5 7 2.2 Ti: 0.3 53 - 58 HRC The technical datasheets for these products are available on our website. The safety datasheets are also available on request. Back to contents page
welding-alloys.com 16 Tool steels selection guide Product Welding process Standard diameters [mm] EN 14700 standard Metal-to-metal friction Mineral abrasion Abrasion under pressure Hot abrasion Erosion Cavitation Impact Mechanical fatigue FOLDED CORED WIRES HARDFACE AR -G 1.2 - 2.4 T Z Fe4 u u u u u u HARDFACE WLC -O 1.2 - 2.8 T Fe3 u u u -G 1.2 - 2.4 -S 2.4 - 3.2 HARDFACE W -O 1.2 - 2.8 T Z Fe3 u u u u u -G 1.2 - 2.4 -S 2.4 - 3.2 HARDFACE WM -G 1.2 - 2.4 T Fe3 u u u u u HARDFACE WMOLC -G 1.2 - 2.4 T Fe3 u u u u u HARDFACE DCO -O 1.6 - 2.4 T Z Fe3 u u u u u u -G 1.2 - 2.4 -S 2.4 - 3.2 SEAMLESS CORED WIRES ROBOTOOL 46 -G 1.2 - 1.6 T Z Fe8 u u u ROBOTOOL 47 -G 1.2 - 1.6 T Z Fe8 u u u ROBOTOOL 58 -G 1.2 - 1.6 T Fe3 u u u u suitable u u highly suitable Gas shielded (-G) Open arc / self shielded (-O) Submerged arc (-S)
welding-alloys.com 17 Thermal fatigue Hot oxidation Corrosion Cutting Work hardening Machining Description and applications u u u u u Tubular wire for gas shielded arc welding giving a tough high speed steel deposit (precipitated fine carbides in a martensitic matrix). Exceptional wear resistance in cold cutting operations. Keeps its properties at temperatures up to 600°C (hardness may be increased to ~65 HRC after tempering for 2 hours at 500°C). Applications: cold shearing blades, machine tools, milling cutters, knives and wire guides. u u u u u Martensitic alloyed steel providing very good resistance to metal-to-metal and low stress abrasive wear. The higher the carbon content, the better the resistance to heavy impact and compressive stresses. HARDFACE W provides a hard deposit that keeps its properties over a long period of exposure to temperatures up to 500°C. HARDFACE W is slightly overalloying AISI H12 tool steels. HARDFACE WLC has low cracking sensitivity, which makes it suitable for rebuilding and buffering on very large components and alloyed steels. Applications: tooling for hot shearing, mill rolls, bells and hopper seats in blast furnaces, forging dies, deburring dies. u u u u u u u u u u u u Martensitic steel deposit with a medium hardness of 47 HRC. Exceptional oxidation resistance and toughness at high temperatures - up to 600°C. Applications: repairing and hardfacing of tools undergoing thermal shock, mechanical fatigue and adhesive wear. u u u u u u Martensitic welding deposit providing hardness in the range of 52 HRC. The high content of vanadium, tungsten, and chromium improves resistance to heat checking, and provides overall improvement to mechanical properties at elevated temperatures - up to 600°C. The welding deposit is an overalloyed version of AISI H13 tool steels. Applications: tooling for hot shearing, hot punches, hot extrusions dies, mill guides. uuuu u uu u u Special martensitic alloyed steel deposit offering similar performance to cobalt based alloys. This Fe-Cr-Co-Mo welding deposit is especially suited to resist metal-to-metal wear, oxidation, cavitation and corrosion at temperatures up to 550°C. u u u u u Copper coated and non-copper coated wires available. The higher the carbon content, the better the resistance to heavy impact and compressive stresses. ROBOTOOL wires are suitable for hardfacing parts undergoing metal-to-metal wear, compression and moderate impact loads at high temperatures. Applications: tooling for hot shearing, mill rolls, bells and hopper seats in blast furnaces, forging dies, deburring dies. u u u u u u u u u u Products with less harmful fumes or manufactured using a more sustainable process. Back to contents page
welding-alloys.com 18 Hardfacing of a cement mill table and roll (behind) with a high chromium cast iron deposit.
welding-alloys.com 19 These wires are composed of hard phases in a matrix where the structure depends on the composition of the filler metal. Products having a high boron content offer the best solution to fight against a wide variety of pure abrasive wear. HARDFACE BN, HARDFACE BNC and HARDFACE NCWB are able to achieve a high hardness from the first layer, however, applying a second layer or repairing an existing hardfacing deposit with these wires is not recommended (risk of spalling). Highly alloyed steels with hard phases Product Composition [%] - Fe balance Hardness C Mn Si Cr Mo Nb V Others 3 layers as welded Hard phases microhardness [HV] HARDFACE BN 0.5 2 1.4 Ni: 2 B: 4.5 60 - 65 HRC 2100 - 3300 HARDFACE BNC 2.5 2 0.9 12 5 B: 2.2 64 - 68 HRC 1350 - 3300 HARDFACE NCWB 1.1 0.6 0.7 22 4 3.5 W: 6.5 66 - 70 HRC 950 - 1450 HARDFACE X 1 0.3 1 8 0.6 4 60 - 65 HRC 1350 - 3300 HARDFACE FC 5 1.2 0.7 18 58 - 64 HRC 950 - 1450 HARDFACE HC 5 1 1.5 27 58 - 64 HRC 950 - 1450 HARDFACE HCNB 5.2 0.2 1.5 27 2.2 60 - 65 HRC 950 - 2000 HARDFACE CN 5 0.5 1 22 7 62 - 64 HRC 950 - 2000 HARDFACE CV 5.5 0.5 1 22 3 6 0.4 W: 1 62 - 64 HRC 950 - 2900 HARDFACE VN 5 0.7 1.2 22.5 10 62 - 65 HRC 950 - 2900 HARDFACE CNV 5.5 0.5 1.5 22 5 6 1 W: 2 63 - 67 HRC 950 - 2900 HARDFACE TIC 1.8 1.2 0.8 6.5 1.2 0.2 Ti: 5 57 - 60 HRC 950 - 3200 HARDFACE NB 1.5 0.8 0.8 6.5 6 55 - 58 HRC 950 - 3200 HARDFACE 168NB 1.3 1 1.8 6 8.5 Ti: 0.2 55 - 58 HRC 950 - 3200 The technical datasheets for these products are available on our website. The safety datasheets are also available on request. A huge range of cored wires can be designed and manufactured simply by adjusting or adding specific elements. For example, by adding the suitable amount of niobium, our HARDFACE HCNB-O will provide better wear performance from the first layer, compensating the effect of dilution onto the substrate. With most of these wires, shrinkage cracks will occur in the deposit. These are the result of the natural relaxation of stresses in the deposit. Stress-relief cracking does not usually occur when using cored wires that have been designed for impact resistance. Back to contents page
welding-alloys.com 20 Highly alloyed steels with hard phases selection guide Product Welding process Standard diameters [mm] EN 14700 standard Metal-to-metal friction Mineral abrasion Abrasion under pressure Hot abrasion Erosion Cavitation Impact Mechanical fatigue Thermal fatigue Hot oxidation COMBINATION OF ABRASION AND LOW IMPACT HARDFACE BN -O 1.2 - 2.8 T Z Fe13 u u u u HARDFACE BNC -O 1.2 - 2.8 T Z Fe16 u u u u u u HARDFACE NCWB -G 1.2 - 2.4 T Z Fe8 u u u u u u -O 1.2 - 2.8 COMBINATION OF ABRASION AND MODERATE IMPACT HARDFACE X -G 1.2 - 1.6 T Z Fe8 u u u u u u HARDFACE FC -O 1.2 - 3.2 T Fe16 u u u u u HARDFACE HC -O 1.2 - 3.2 T Fe15 u u u u u HARDFACE HCNB -O 1.2 - 3.2 T Fe16 u u u u u u HARDFACE CN -O 1.6 - 3.2 T Fe15 u u u u u u HARDFACE CV -O 1.6 - 3.2 T Fe16 u u u u u u u HARDFACE VN -O 1.6 - 3.2 T Fe16 u u u u u u u u HARDFACE CNV -O 1.2 - 3.2 T Fe16 u u u u u u u u COMBINATION OF ABRASION AND HIGH IMPACT HARDFACE TIC -O 1.2 - 3.2 T Fe8 u u u u u u u u HARDFACE NB -G 1.2 - 1.6 T Fe6 u u u u u u u u HARDFACE 168NB -O 1.6 - 2.4 u suitable u u highly suitable Gas shielded (-G) Open arc / self shielded (-O) Submerged arc (-S)
welding-alloys.com 21 Corrosion Cutting Work hardening Machining Description and applications Ultra-hard single layer deposit designed to resist pure abrasion - for welding on unalloyed steels with C < 0.5% Contains boron carbides of extreme hardness. Chromium free deposit. Applications: equipment used in agriculture, quarrying, mining and civil engineering, screw conveyors, hoppers. Ultra-hard single layer deposit, extreme resistance to high stress abrasion, erosion, low impact, and temperatures up to 650°C. Contains borides, chromium and niobium carbides of extreme hardness. Applications: screw and chain conveyors, screens, fans, crushers. Ultra-hard deposit offering high abrasion resistance in a single layer deposit. Complex carbides and borides homogeneously dispersed in an austenitic matrix. Extreme resistance to abrasion, low impact and/or elevated temperatures up to 750°C. Applications: screw conveyors, fans, equipment used in agriculture and mining, trenchers. Abrasion and impact resistant deposit with niobium and chromium carbides in a martensitic matrix. High hardness obtained from the first layer without stress relief cracks. For use where chrome carbide type alloys are too brittle, but high abrasion resistance is still required. Applications: drag line bucket lips, auger flights, tyre shredders, slitter blades, extruder screws, tamper feet, rendering screws, dredge parts, tamper tools. Highly abrasion resistant chromium carbide deposit with a metallographic structure consisting of a martensitic cast iron. Severe abrasion and moderate impact resistance. Applications: wear plates, mineral conveying equipment, screw conveyors, shovel buckets, dredger pumps, mixers. Highly abrasion resistant chromium carbide deposit. Combination of primary and eutectic chromium carbides in a tough austenitic matrix. HARDFACE HCP-O is the equivalent wire that can be used if out of position welding is required. Applications: wear plates, mineral conveying equipment, screw conveyors, shovel buckets, dredger pumps, mixers. High chromium cast iron deposit with controlled niobium addition. High abrasion resistance right from the first layer. Suitable for hardfacing components subject to extremely severe abrasive wear and moderate impact. Applications: gyratory crusher cones and mantles, dredge pump bodies, sand dredge parts, extruder screws, mining and earthmoving equipment, blast furnace bells, crusher hammers. Highly abrasion resistant deposit containing niobium and chromium carbides. Very good wear resistance to fine abrasive particles of high hardness. Applications: wear plates, vertical crushers, fan blades, chutes. High chromium cast iron deposit with a high concentration of complex carbides. Resistant to abrasion and impact at high temperatures. Applications: thick deposits for sinter processing in steel making, for example: drop zones, sinter breaker stars, sinter bars, thermal treatment of metal ores. Highly abrasion resistant chromium-vanadium complex carbides in a hard and tough austenitic matrix. Resistant to mineral abrasion and temperatures up to 600°C. Applications: wear plates, mineral conveying equipment, screw conveyors, vertical crushers, fan blades, chutes, crushers. High chromium cast iron deposit with a high concentration of niobium, molybdenum, tungsten and vanadium, resulting in hexagonal primary and eutectic carbides, nodular niobium carbides and complex combined carbides in an austenitic matrix. Resistant to combined abrasion and impact at temperatures up to 700°C. Applications: ore sintering, crushing, blast furnace hoppers and throats, extractor fans. Finely dispersed titanium and chromium carbides in an austenitic matrix. Extreme resistance to abrasion, high pressure and heavy impact. Applications: crushing of hard materials, shredders, asphalt kneaders, vertical shaft impact crusher rotors, roller presses, cane knives and shredders. Finely dispersed niobium and chromium carbides in a martensitic matrix. The crack free welding deposit is resistant to abrasion, high pressure and impact. Applications: crusher rollers and hammers, crusher cones, leading edges, teeth of excavator buckets and bulldozer blades. Products with less harmful fumes or manufactured using a more sustainable process. Back to contents page
welding-alloys.com 22 Hardfacing of a screw conveyor using HARDFACE STAINCARBW.
welding-alloys.com 23 Tungsten carbides Cored welding wires filled with advanced tungsten carbides provide extreme resistance to abrasive wear. Cast tungsten carbides are added to the wire during the production process. With low welding parameters, these pass directly through the welding arc without melting, therefore it is vital to ensure an even distribution of WC in the welding deposit. If the welding parameters are too high, this will result in the carbides dropping to the bottom of the weld pool (resulting in reduced wear protection). Product Composition Hardness WC content 3 layers as welded Hard phases microhardness [HV] HARDFACE STEELCARBW Composite deposit containing tungsten carbide particles in a steel matrix 50 - 60% depending on Ø 61 - 65 HRC* 950 - 2000 HARDFACE STAINCARBW Composite deposit containing tungsten carbide particles in a stainless steel matrix 50 - 60% depending on Ø 60 - 63 HRC* 2000 - 2500 HARDFACE NICARBW Composite deposit containing tungsten carbide particles in a nickel-boron-silicon matrix 50 - 60% depending on Ø 45 - 55 HRC* 2000 - 2800 *matrix hardness The technical datasheets for these products are available on our website. The safety datasheets are also available on request. The wires presented below offer great versatility in terms of operability since it is possible to use them with or without a shielding gas. Back to contents page
welding-alloys.com 24 Tungsten carbides selection guide Product Welding process Standard diameters [mm] EN 14700 standard Metal-to-metal friction Mineral abrasion Abrasion under pressure Hot abrasion Erosion Cavitation Impact Mechanical fatigue HARDFACE STEELCARBW O / G 1.6 - 2.8 T Fe20 u u u HARDFACE STAINCARBW O / G 1.6 - 2.8 T Z Fe20 u u u u u u HARDFACE NICARBW O / G 1.6 - 2.8 T Ni20 u u u u u u u suitable u u highly suitable Gas shielded (-G) Open arc / self shielded (-O) Submerged arc (-S)
welding-alloys.com 25 Thermal fatigue Hot oxidation Corrosion Cutting Work hardening Machining Description and applications Iron based cored wire filled with tungsten carbides, resulting in hard carbide particles in a martensitic matrix. Economical solution when compared to advanced nickel based alloys filled with tungsten carbides. Lower wear performance rate than HARDFACE NICARBW. Possible to weld with or without gas shielding. Applications: bucket teeth, wood chipper spouts, scraper blades, crusher bars, components for agriculture. u Cored wire filled with tungsten carbides, resulting in hard carbide particles embedded in a soft corrosion resistant matrix. Possible to weld with or without gas shielding. Applications: bucket teeth, wood chipper spouts, scraper blades, crusher bars, components for agriculture, conveyor screws, trenchers. u u Nickel based cored welding wire filled with advanced cast tungsten carbides. Possible to weld with or without gas shielding. Optimised hard particle distribution in the matrix by following the proper welding procedure. Applications: bucket teeth, wood chipper spouts, scraper blades, crusher bars, components for agriculture, conveyor screws, trenchers. Back to contents page
welding-alloys.com 26 Hard coating of a screw flight using a high chromium cast iron deposit.
welding-alloys.com 27 Thermal arc spraying Within the spectrum of thermal spraying technologies, the arc spraying process stands out for its cost-effectiveness and efficiency. This methodology offers a robust solution for a diverse array of applications, providing superior resistance against various forms of wear, including abrasion, erosion, thermal degradation, metal-to-metal friction, and corrosion. The twin wire arc spraying process utilises two conductive wires, each assigned an opposite electrical charge. These wires melt under the influence of the electric arc, and are then atomized by a stream of dry compressed air to form a cohesive coating layer. Cored wires, notable for their versatile chemical composition, significantly enhance the adaptability of this process to specific application requirements. Our HARDSPRAY product line encompasses both iron-based and nickel-based cored wires, precisely engineered to combat all forms of wear. These coatings are characterised by their exceptional density, minimal porosity, and superior bond strength, ensuring optimal performance under the most demanding conditions. We also supply WA SPRAY solid wires, featuring two of the most popular thermal spray solutions available on the market, to complete the range. Our portfolio of thermal spray wires is designed to provide solutions across a range of operating environments, combating various mechanical and thermal stresses. Product Composition [%] Hardness C Mn Si Cr Ni Mo Nb W B Al Fe Others HARDSPRAY HB4 0.1 1.5 1.5 29 3.8 Bal. Matrix: 45-55 HRC Carbides: 1000-1150 HV0.1 HARDSPRAY 140 1.2 22 0.5 4 3.5 6.5 4.5 Bal. 65-70 HRC HARDSPRAY NI WC 0.4 5 Bal. 2 WSC: 62 Matrix: 45-55 HRC Carbides: 2000-2800 HV0.1 HARDSPRAY NI CBS 0.4 4.5 20 Bal. 2 0.7 700-800 HV0.1 HARDSPRAY NI Al5 Bal. 5 180-200 HV HARDSPRAY NI Cr20 20 Bal. 100-150 HB WA SPRAY CuAl9 9 Cu: Bal 63-65 HRB WA SPRAY 13Cr 0.3 0.6 1 13 Bal. 35-45 HRC The technical datasheets for these products are available on our website. The safety datasheets are also available on request. Back to contents page
welding-alloys.com 28 Thermal arc spraying selection guide Product Coating process Standard diameters [mm] Metal-to-metal friction Mineral abrasion Abrasion under pressure Hot abrasion Erosion Cavitation Impact Mechanical fatigue Thermal fatigue CORED WIRES HARDSPRAY HB4 -TS 1.6 - 3.2 u u u u u HARDSPRAY 140 -TS 1.6 - 3.2 u u u u u u u HARDSPRAY NI WC -TS 1.6 - 3.2 u u u u u u HARDSPRAY NI CBS -TS 1.6 - 3.2 u u HARDSPRAY NI Al5 -TS 1.6 - 3.2 u u HARDSPRAY NI Cr20 -TS 1.6 - 3.2 u SOLID WIRES WA SPRAY CuAl9 -TS 1.6 u u WA SPRAY 13Cr -TS 1.6 u u u u u u u u suitable u u highly suitable
welding-alloys.com 29 Hot oxidation Corrosion Cutting Work hardening Machining Description and applications u u u u FeCrBSi amorphous alloy. Highly abrasion and corrosion resistant deposit. High chrome-like finish can be obtained after grinding. Applications: boilers, feeding system in the chemical industry, casings, fans. u u u Amorphous alloy. Very fine particle deposit. Abrasion and corrosion resistant and can withstand temperatures up to 900 °C. High chrome-like finish can be obtained after grinding. Applications: screws, casings, cyclones, fans. u u Composite deposit containing tungsten carbide particles in a Ni-B-Si matrix. Exceptional abrasion resistance. Applications: chutes, screws. u u u u u Nickel based alloy. NiCrBSi cored wire used for oxidation and corrosion resistance. Good resistance to chloride-induced corrosion in boilers, in temperatures up to 450 °C. Applications: components used in chemical plants, the food industry, boiler tubes. u u u u u Developed for bonding layer on low and medium alloyed base materials. High bond strength, bonds to most metal substrates. Excellent abrasion and oxidation resistance at high temperatures. Applications: bond coat. u u u u Specially developed for bonding layer on highly-alloyed base materials. Excellent corrosion and oxidation resistance at high temperatures up to 650 °C Applications: bond coat. u u u Aluminium bronze used for element restoration jobs. Combined resistance to corrosion and to mechanical and thermal fatigue. Applications: bearings, aluminium bronze components, bond coat. u u u Hard martensitic stainless steel with 13% chromium and high carbon content. Resistant to wear from friction, erosion, corrosion and thermal fatigue. Can be polished. Applications: machine elements, cylinder liners, pistons, crankshaft bearings, hydraulic rams Back to contents page
welding-alloys.com 30 Automatic cladding application using our Roll Cladder machine and our CHROMECORE submerged arc cored wires.
welding-alloys.com 31 Ferritic & martensitic stainless steels Martensitic stainless steel deposits with over 12% Cr offer good resistance to thermal fatigue and corrosion. These grades are ideal for applications where there is hot metal-to-metal wear. Martensitic stainless steels are widely used in steelmaking and forging for casting, rolling and forming operations. The addition of elements such as nitrogen, vanadium, tungsten or even cobalt increase the resistance of these alloys to high temperatures and corrosion. Product Composition [%] - Fe balance Hardness 3 layers as welded C Mn Si Cr Ni Mo W V Co N Other CHROMECORE 430 0.05 1 0.8 17.5 220 HB CHROMECORE 434N 0.05 1.2 0.7 17 3.2 0.5 0.08 35 - 40 HRC CHROMECORE 434DN 0.05 1.2 0.8 16.5 3.5 0.5 0.8 0.5 2 0.08 38 - 42 HRC CHROMECORE 410 0.08 1.2 0.8 12.5 40 - 43 HRC CHROMECORE 420 0.3 1 0.6 13 48 - 52 HRC CHROMECORE 414 0.05 1.2 1 13.5 4 0.5 38 - 43 HRC CHROMECORE 414MM 0.15 1.2 0.5 12.5 2.3 1.2 0.20 43 - 47 HRC CHROMECORE 414N 0.08 1 1 13.5 4.3 0.7 0.09 40 - 45 HRC CHROMECORE 414DN 0.05 1.2 0.8 13.5 4.5 0.5 0.8 0.5 2 0.07 40 - 45 HRC CHROMECORE 414NX 0.1 1.1 0.5 13.5 3.2 1.3 0.15 0.09 REE* 42 - 48 HRC CHROMECORE 414COILER 0.3 1 0.7 12 1.3 0.6 0.3 50 - 55 HRC *Rare Earth Elements The technical datasheets for these products are available on our website. The safety datasheets are also available on request. When surfacing a low or medium alloyed base metal with martensitic stainless steels, it is advantageous to apply a special buffer layer, which is overalloyed in chromium (~ 17% Cr), to guarantee metallurgical soundness and to avoid cracking in service. Back to contents page
welding-alloys.com 32 Ferritic & martensitic stainless steels selection guide Product Welding process Standard diameters [mm] EN 14700 standard Metal-to-metal friction Mineral abrasion Abrasion under pressure Hot abrasion Erosion Cavitation Impact Mechanical fatigue CHROMECORE 430 -O 1.6 - 3.2 T Fe7 u u u u u -G 1.2 - 2.4 -S 2.4 - 3.2 CHROMECORE 434N -O 1.6 - 3.2 T Fe7 u u u u u -S 2.4 - 3.2 CHROMECORE 434DN -O 1.6 - 3.2 T Z Fe7 u u u u u -S 2.4 - 3.2 CHROMECORE 410 -O 1.6 - 3.2 T Fe7 u u u u u u u -G 1.2 - 2.4 -S 2.4 - 3.2 CHROMECORE 420 -O 1.6 - 2.8 T Fe8 u u u u u -G 1.2 - 2.4 -S 2.4 - 3.2 CHROMECORE 414 -O 1.6 - 3.2 T Fe7 u u u u u u u -G 1.2 - 2.4 -S 2.4 - 3.2 CHROMECORE 414MM -G 1.2 - 2.4 T Fe7 u u u u u u u -S 2.4 - 3.2 CHROMECORE 414N -O 1.2 - 2.8 T Z Fe7 u u u u u u u -S 2.4 - 3.2 CHROMECORE 414DN -O 1.2 - 2.8 T Z Fe7 u u u u u u u -S 2.4 - 3.2 CHROMECORE 414NX -O 1.6 - 3.2 T Z Fe7 u u u u u u u -G 1.2 - 2.4 -S 2.4 - 3.2 CHROMECORE 414COILER -S 2.4 - 3.2 T Z Fe7 u u u u u u u u suitable u u highly suitable Gas shielded (-G) Open arc / self shielded (-O) Submerged arc (-S)
welding-alloys.com 33 Thermal fatigue Hot oxidation Corrosion Cutting Work hardening Machining Description and applications u u u u u u Alloy depositing a 17% chromium ferritic stainless steel. Combined resistance to corrosion, frictional wear and temperature. Resistant to seawater and dilute organic acids. The addition of nitrogen or even vanadium, tungsten and cobalt will increase wear performance. Applications: anti-corrosion surfacing or buffer layer before martensitic stainless steel hardfacing; for example: continuous casting rolls, valve seats, shafts, pump bodies and rotors. u u u u u u u u u u u u u u u u u Alloy depositing a 13% chromium martensitic stainless steel. Resistant to wear from friction, erosion, corrosion and thermal fatigue. Can be polished. Applications: continuous casting rolls, tooling for moulded glass, valve seats, impellers. u u u u u Hard martensitic stainless steel with 13% chromium and high carbon content. Resists frictional wear. Applications: mechanical components suffering atmospheric corrosion, rolling mill guides, static brakes for railway marshalling yards. u u u u u u Alloy depositing a 13% chromium ferritic-martensitic stainless steel. CHROMECORE 414MM - addition of nickel and molybdenum. Homogeneous deposit structure with controlled ferrite content. Designed to resist metal-to-metal wear, corrosion, friction and thermal fatigue. The addition of nitrogen or even vanadium, tungsten and cobalt will increase wear performance. Applications: continuous casting rolls, hot-rolling mills, steam turbines, valve seats. u u u u u u u u u u u u u u u u u u u u u u u u u Nitrogen-alloyed 414 martensitic stainless steel, strengthened with niobium, vanadium and rare earth elements for resistance to tempering, creeping, oxidation and corrosion. The addition of rare earth elements improves corrosion resistant properties, as well as mechanical properties. Applications: continuous casting rolls, hot-rolling mills, steam turbines, valve seats. u u u u u Alloy depositing a 13% chromium ferritic-martensitic stainless steel with addition of nickel and molybdenum. High hardness due to the higher carbon content. Resistant to friction, galling, erosion, corrosion and thermal fatigue. Applications: continuous casting rolls, particularly on the straightening and horizontal zone. Back to contents page
welding-alloys.com 34 Open die forging process showing rounded saddles hardfaced with STELLOY Ni520-G.
welding-alloys.com 35 Nickel based alloys Superalloys, also known as heat-resistant alloys or high-temperature alloys, are classified into different groups. Nickel based and cobalt based make up part of them. Nickel based superalloys have the ability to maintain high creep strength, oxidation and corrosion resistance at high service temperatures (up to about 1100°C). Regarding hardfacing applications, our nickel based superalloy cored wires are 100% compatible with open-die forging applications (such as shafts, presses or hammers). There are two metallurgical reasons as to why these nickel based superalloys perform so highly. First, elements such as molybdenum, tungsten, cobalt and chromium have been proven to strengthen solid solutions, and will favour the high temperature strength of the welding deposit. Product Composition [%] - Ni balance Hardness -3 layers C Mn Si Cr Fe Mo W Others as welded work hardened STELLOY C 0.02 0.6 0.8 16 4 16 5 200 HB 350 HB STELLOY CCo 0.02 1.2 0.6 15.5 2 16 4.4 Co: 2.3 220 HB 350 HB STELLOY Ni520 0.06 0.1 0.2 13 1.5 6 1 Co: 11.5 Ti: 3 Al: 2 250 HB 38 - 42 HRC STELLOY Ni519Co2 0.03 0.1 0.1 20 0.4 6.1 1 Co: 12 Ti: 3 Al: 2 250 HB 32 - 40 HRC The technical datasheets for these products are available on our website. The safety datasheets are also available on request. Second, elements such as titanium and aluminium will have an age hardening effect by forming a face-centred cubic structure, providing maximum strength through precipitation. Several studies involving nickel based superalloys have shown that these welding deposits can be difficult to work with because they have a tendency to crack during welding. By controlling the chemical analysis of our cored wires (e.g. aluminium to titanium ratio), Welding Alloys helps customers ensure they stay in the safest zone, whilst also achieving the expected hardfacing deposit. Back to contents page
welding-alloys.com 36 Nickel based alloys selection guide Product Welding process Standard diameters [mm] EN 14700 standard Metal-to-metal friction Mineral abrasion Abrasion under pressure Hot abrasion Erosion Cavitation Impact Mechanical fatigue STELLOY C -O 2.4 - 2.8 T Ni2 u u u u -G 1.6 - 2.4 -S 2.4 - 3.2 STELLOY CCo -O 2.4 - 2.8 T Ni2 u u u u u -G 1.6 - 2.4 STELLOY Ni520 -G 1.6 - 2.4 T Ni4 u u u u u u STELLOY Ni519Co2 -G 2.4 T Ni4 u u u u u u u suitable u u highly suitable Gas shielded (-G) Open arc / self shielded (-O) Submerged arc (-S)
welding-alloys.com 37 Thermal fatigue Hot oxidation Corrosion Cutting Work hardening Machining Description and applications u u u u u Nickel based alloy with a chemical analysis matching the C276 parent alloy (Ni15%Cr-16%Mo-4%W). Resistant to oxidation, corrosion and mechanical stresses at high temperatures up to 1100°C. High tolerance to dilution makes this wire suitable for buffering before hardfacing with STELLOY Ni520 or STELLOY Ni519Co2. Applications: pumps and valves for the chemical and petrochemical industries. u u u u u u Nickel based alloy (NiCrMo) with the addition of cobalt. Resistant to oxidation, corrosion and mechanical stresses at high temperatures up to 1100°C. Cobalt gives the deposit improved resistance to high temperatures, thermal fatigue and high temperature corrosion. Applications: tube extension dies, mill guides, hot extrusion dies, hot working tools. u u u u u u u u Nickel based superalloys offering extremely high temperature resistance combined with good mechanical properties, thermal shock and corrosion resistance. Titanium and aluminium elements form intermetallic precipitates at the grain boundaries, which strengthen the welding deposit. Recommended with buffer layer of STELLOY C or STELLOY CCo. Applications: high speed forging tools, forging hammers, tube extrusion mandrels. u u u u u u u u Back to contents page
welding-alloys.com 38 Robotic cladding of a valve using STELLOY 21-G.
welding-alloys.com 39 Cobalt based alloys Cobalt based cored wires are mainly alloyed with carbon, chromium and tungsten. However, sometimes they are alloyed with nickel and molybdenum. These alloys are especially suited to applications involving high temperatures, as they retain high hardnesses over time. Chromium provides a protective layer and thus plays an antioxidation role. Chromium, tungsten and molybdenum combine with carbon to create hard carbides. These alloys are ideal for resisting wear caused by metal-to-metal friction at high temperatures and in the presence of abrasives. Product Composition [%] - Co balance Hardness -3 layers C Mn Si Cr W Fe Others as welded work hardened STELLOY 25 0.15 1.5 1 20 14 4 Ni: 9.5 210 HB 38 - 42 HRC STELLOY 21 0.35 1 1 28 3 Ni: 3.2 Mo: 5.5 33 HRC 45 - 48 HRC STELLOY 6 BC 0.9 1 1.2 29 5 3.5 Ni: < 3 36 - 40 HRC STELLOY 6 1.1 1 1.2 29 5 3.5 Ni: < 3 40 - 44 HRC STELLOY 6 HC 1.2 1 1.2 29 5 3.5 Ni: < 3 42 - 46 HRC STELLOY 12 1.5 1 1 30 7.5 3.5 Ni: < 3 44 - 48 HRC STELLOY 1 2.4 1 1.2 28.5 12.5 3.5 Ni: < 3 52 - 55 HRC The technical datasheets for these products are available on our website. The safety datasheets are also available on request. Their low coefficient of friction and their self-polishing tendency, makes them highly scratch-resistant and helps maintain an excellent surface quality. To avoid cracking, any welding operation with this type of filler metal requires preheating. Based on decades of technical knowledge and experience in the production of cored wires, Welding Alloys have globally located R&D and technical teams that are capable of developing a large range of tailored cobalt based wires. Back to contents page
welding-alloys.com 40 Cobalt based alloys selection guide Product Welding process Standard diameters [mm] EN 14700 standard AWS A5.21 Metal-to-metal friction Mineral abrasion Abrasion under pressure Hot abrasion Erosion Cavitation Impact STELLOY 25 -G 1.2 - 1.6 T Z Co - u u u u STELLOY 21 -G 1.2 - 1.6 T Co1 ERCCoCr-E u u u u u u -TIG -LD STELLOY 6 BC -G 1.2 - 1.6 T Co2 ERCCoCr-A u u u u STELLOY 6 -G 1.2 - 1.6 u u u u -TIG -LD STELLOY 6 HC -G 1.2 - 1.6 u u u u u u STELLOY 12 -G 1.2 - 1.6 T Co2 ERCCoCr-B u u u u u u -TIG -LD STELLOY 1 -G 1.2 - 1.6 T Co3 ERCCoCr-C u u u u u u suitable u u highly suitable Gas shielded (-G) Laser deposit (-LD) Gas tungsten arc welding (-TIG)
welding-alloys.com 41 Mechanical fatigue Thermal fatigue Hot oxidation Corrosion Cutting Work hardening Machining Description and applications uu uu uu uu u u u Low carbon cobalt base, easy to apply due to its low cracking tendency. Highly resistant to temperature and metal-to-metal wear. Maintains a good level of hardness at high temperatures. Applications: extrusion dies, nozzles, pump shafts. u uuuuuuuu u uu Low carbon cobalt base, with low cracking tendency. Ideal choice for resistance to multiple combinations of stress, such as corrosion and cavitation. Maintains a good level of hardness at high temperatures. Can be work hardened and polished. Low coefficient of friction. Applications: industrial valve work, forging dies and hot shearing blades. uu uu uu uu u u Combines all the outstanding properties of cobalt based alloys, including abrasion and erosion resistance. Medium hardness deposit with good machinability. Tailored compositions are also possible by adjusting the carbon content. A lower carbon content, and therefore lower cracking tendency, facilitates machining. A higher carbon content allows the required hardness to be obtained on low alloy steels from the first layer. Applications: hot shearing tools, petrochemical and industrial valves, valves and valve seats of marine engines, pump sleeves and shafts. uu uu uu uu uu u u uuuuuu u u u uuuuuu u Good resistance to mineral abrasion due to its high hardness. Particularly suited for use on cutting tools. Applications: wood cutting tools, screw conveyors and augers for rubber and plastics, saw blades. u u u u u u u Highest hardness of the cobalt based alloy range, offering excellent resistance to abrasion and corrosion. Self polishing, promotes scratch free sliding of abrasive materials. Applications: rubber kneaders, mixer blades, plastic extrusion screws. Back to contents page
welding-alloys.com 42 Packaging Welding Alloys cored wires are available in various packaging types, to suit your specific welding needs. The table below presents our standard packaging options. For any alternative packaging requirements, please contact your local Welding Alloys subsidiary. *Packaging options may vary by region, consult your local Welding Alloys subsidiary. Type* Weight EN ISO 544 standard Metal Basket Spool 25 kg B 450 15 kg BS 300 5 kg Plastic Spool 15 kg S 300 5 kg S 200 Drum Up to 330 kg
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welding-alloys.com 44 Notes
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