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Classification:
EN ISO 14343 G 29 9
AWS A5.9 ER312
Description:
Cromamig 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 steels e.g. high carbon hardenable tool, die and spring steels, 13% Mn steels,
free-cutting steels, high temperature steels.
– Dissimilar joints between stainless and high carbon steels.
– Surfacing of metal-to-metal wear areas, hot working tools, furnace components.
– Buffer layers prior to hard facing with high chromium carbide deposits.
Welding current:
DC+
Shielding gas:
M12, Ar, 2% CO2,16-21 l/min
M13, Ar + 1-3% O2, 16-21 l/min
Wire composition, wt.%
Mechanical properties
Typical
Yield strength, Rp0.2%: 600 MPa
Tensile Strength, Rm: 750 MPa
Elongation, A5 25%
Impact energy, CV:
20°C
•
50 J
Ferrite content:
FN 40
Corrosion resistance
Good resistance to sulphurous gases at high
temperature. Good resistance to wet corrosion up
to approximately 300°C.
Scaling temperature:
Approx. 1100°C in air.
Product data:
Diam.
mm
Product code Spool weight
1,0 98082010
15 kg S300
75-140
18-21 170-200 26-28
1,2 98082012
15 kg S300
130-160
18-21 175-250 26-28