

Classification:

EN ISO 14343

AWS A5.9

G 29 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+

Mechanical properties

Shielding gas:

M12, Ar, 2% CO2,16-21 l/min

M13, Ar + 1-3% O2, 16-21 l/min

Yield strength, Rp0.2%:

Tensile Strength, Rm:

Elongation, A5

Impact energy, CV:

Typical

Wire composition, wt.%





















600 MPa

750 MPa

25%

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. Product code

mm

1,0

1,2

98082010

98082012

Spool weight



15 kg S300

15 kg S300

75-140

130-160

158

  

18-21

18-21

170-200

175-250

26-28

26-28