• Advanced welding consumables for a range of applications

    TRI S 309L-O
TRI S 309L-O

TRI S 309L-O

Special flux cored self shielded stainless steel wire for open arc welding

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Technical information

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Product Details

  • Alloy Type: Stainless Steels
  • Cracks: No
  • Machinable: Yes
  • Multi-layer: Yes
  • AWS Classification(s): ASME IIC SFA 5.22 / AWS A 5.22: E309LT0-3
  • EN ISO Classification(s): EN ISO 17633-A: T 23 12 L U NO 3
  • Base Metal(s) to Weld: 1.4024, 1.4512, 1.4008, UNS J91150, UNS S44200, 1.4006, AISI 18CrCb, 1.4001, 1.4107, 1.4016, AISI 403, AISI 430Ti, AISI 429, 1.4003, AISI 430, AISI 410, AISI 439, AISI 405, AISI 3Cr12, UNS S43000, 1.4000, 1.4059, AISI 430Cb, AISI CA15, UNS S40977, 1.4510, UNS S40300, AISI 409, UNS S41000, 1.4589, 1.4520, 1.4742, 1.4509, UNS S43035, UNS S40500, 1.4741, 1.4002, 1.4511, UNS S40900, UNS S42900, AISI 442
  • Welding Processes: FCAW-S


  • 24% chromium, 13% nickel, low carbon deposit
  • The weld beads produced have a self-releasing slag covering that leaves a clean surface
  • Sound deposits are obtained even in the presence of cross draughts
  • Primary choice for cladding and rebuilding applications, but also suitable for joining
  • Perfect for outdoor jobs

Wear type suitability:


Welding Positions:

  • Flat
  • Half down
  • Half up

Welding products and techniques evolve constantly. All descriptions, illustrations and properties given on this site are subject to change without notice and can only be considered as suitable for general guidance. This information is intended to help the user make the correct choice of product but it is the responsibility of the user to assess the suitability for their intended application. Information may vary by region, please consult your local subsidiary.

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