• Advanced welding consumables for a range of applications

    WA TSS 309LSi


Solid GTAW rod for welding austenitic Cr-Ni stainless steels

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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 5.9 / AWS A 5.9: ER309LSi
  • EN ISO Classification(s): EN ISO 14343-A: W 23 12 L Si
  • Base Metal(s) to Weld: 1.4000, 1.4001, 1.4002, 1.4003, 1.4006, 1.4008, 1.4016, 1.4024, 1.4059, 1.4107, 1.4509, 1.4510, 1.4511, 1.4512, 1.4520, 1.4589, 1.4741, 1.4742, AISI 18CrCb, AISI 3Cr12, AISI 403, AISI 405, AISI 409, AISI 410, AISI 429, AISI 430, AISI 430Cb, AISI 430Ti, AISI 439, AISI 442, AISI CA15, UNS J91150, UNS S40300, UNS S40500, UNS S40900, UNS S40977, UNS S41000, UNS S42900, UNS S43000, UNS S43035, UNS S44200
  • Welding Processes: GTAW / TIG


  • 23% chromium - 12% nickel - low carbon deposit
  • Higher silicon content improves wetting action
  • Standard 309L is available on request.

Wear type suitability:


Welding Positions:

  • All positions

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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