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Classification:
EN ISO 14343 G 20 25 5 Cu LN
AWS A5.9 ER385
Description:
Cromamig 385 is intended for welding the 20% Cr / 25% Ni / 4.5% Mo / Cu fully austenitic stainless
steels, used for their very high resistance to corrosion in severe, non-oxidising environments e.g.
sulphuric acid. The low carbon, high alloy content of the weld metal gives excellent resistance to
intergranular corrosion and stress corrosion cracking, combined with superior resistance to crevice
and pitting corrosion compared to standard 304L and 316L materials.
Welding current:
DC+
Shielding gas:
M11, Ar + 1-3% O2, 16-21 l/min
M12, Ar + 2% CO2, 16-21 l/min
Wire composition, wt.%
Mechanical properties
Typical
Yield strength, Rp0.2%: 400 MPa
Tensile Strength, Rm: 580 MPa
Elongation, A5 33%
Impact energy, CV:
20°C
•
120 J
–196°C
•
50 J
Corrosion resistance
Very good resistance to general and intergranular
corrosion in non-oxidising acid environments e.g.
sulphuric (up to 90%), phosphoric and organic
acids. Good resistance to stress corrosion
cracking and crevice and pitting corrosion in
chloride bearing environments.
Scaling temperature:
Approx. 1000°C in air.
Product data:
Diam.
mm
Product code Spool weight
1,0 98142010
15 kg S300
80-120
15-17 180-250 26-29
1,2 98142012
15 kg S300
100-150
17-19 200-290 26-29