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TIG 312

Description:

312 deposits a 29% Cr / 9% Ni austenitic / ferritic stainless steel weld metal with a ferrite content of about FN 40.  The weld metal exhibits excellent tolerance to dilution from dissimilar and difficult-to-weld base materials without hot cracking, together with high strength and very good heat and oxidation resistance.

Applications:

  • Difficult-to-weld steel e.g. high carbon hardenable tool, die and spring steel, 13% Mn steel, free-cutting steel, high temperature steel.
  • Surfacing of metal-to-metal wear areas, hot working tools, furnace components.
  • Buffer layers prior to hard facing with high chromium carbide deposits.
  • Dissimilar joints between stainless and high carbon steel.


Welding current: DC-
Wire composition, wt.%

  C Si Mn P S Cr Ni Mo Cu
Min   0,30 1,0     28,0 8,0    
Typical 0,10 0,50 1,9 0,020 0,015 30,5 9,2 0,10 0,10
Max 0,15 0,65 2,5 0,030 0,020 32,0 12,0 0,30 0,30