welding-alloys.com 15 Stainless steels The corrosion resistance, mechanical properties and weldability of our cored wires are dependent on the stainless steel microstructure, which we break down into the following six sub-categories: ferritic and martensitic stainless steels (see Hardfacing Welding Consumables brochure), soft martensitic stainless steels, austenitic and super-austenitic stainless steels, austenitic-ferritic stainless steels (duplex), heat resistant stainless steels, repair and maintenance austenitic stainless steels. Our stainless steel cored wires provide operational flexibility and precise control over the chemical analysis and mechanical properties. This includes the ability to regulate ferrite levels. When using a metal cored wire, the heat input is reduced, leading to minimised distortion and lower susceptibility to intergranular corrosion on austenitic stainless steels (addressing the issue of chromium depletion at the grain boundaries). Therefore, using these wires for manufacturing 3D parts (Directed Energy Deposition - WAAM) could be highly advantageous. Flux cored wires have the capability to produce different types of slag, offering versatility to cater to specific requirements. Depending on the application needs, it is possible for the wire to have either a fast freezing slag (designated as V), which is best suited for out of position welding, or a slow freezing slag (designated as S), providing excellent protection for the welding bead, resulting in optimal weld quality. For critical applications that are sensitive to hot cracking, like welding 310 stainless steels, an option with a basic slag (designated as SB) is available. Additionally, Welding Alloys has developed a range of flux cored TIG rods known as WAROD, a cost-effective solution for manual TIG welding purposes. WAROD is specifically engineered for root pass welding, particularly in situations where gas purging is not feasible. Product TUBE S / CHROMECORE M TETRA S TETRA V / CHROMECORE V TETRA S B / CHROMECORE B TRI S WAROD Welding process GMAW SAW FCAW-G FCAW-G FCAW-G FCAW-S GTAW Wire type Metal cored Flux cored Flux cored Flux cored Flux cored Flux cored Slag No slag Slow freezing rutile slag Fast freezing rutile slag Basic slag Basic slag Fast freezing rutile slag Shielding gas M12: Ar + 0.5 - 5% CO2 Neutral flux M21: Ar + 15 - 25% CO2 C1: 100% CO2 M21: Ar + 15 - 25% CO2 C1: 100% CO2 M12: Ar + 0.5 - 5% CO2 M21: Ar + 15 - 25% CO2 No gas I1: 100% Ar Welding positions * *Out of position welding also possible using short circuit or pulsed arc modes of transfer Back to contents page
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