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Classification:
EN ISO 18274 S Ni 6625 (NiCr22Mo9Nb)
AWS A5.14 ERNiCrMo-3
Description:
Cromatig 625 is primarily intended for welding Inconel 625 and similar composition nickel base alloys
which are used for their excellent corrosion and oxidation resistance combined with an exceptionally
high resistance to pitting corrosion and chloride induced stress corrosion cracking. Very suitable for a
wide range of dissimilar joint combinations between nickel base alloys, mild and low alloy steels and
stainless steels, especially where high temperature service conditions prevail. Can be used to clad
carbon steels with a high strength, highly corrosion resistant surface.
Applications:
Suitable for welding the nickel base alloys 625 and 825 but also 6 Mo steels (ASTM S31254) and 9%
Ni steels for cryogenic applications..
Overlay welding of carbon or low alloy steels and dissimilar joints.
Welding current:
DC-
Shielding gas:
I1, 99.99% Ar, 6-12 l/min
Stamping
Elga, AWS, Wst, EN, Batch
Wire composition, wt.%
Mechanical properties
Typical
Yield strength, Rp0.2%: 480 MPa
Tensile Strength, Rm: 780 MPa
Elongation, A5 35%
Impact energy, CV:
–196°C
•
80 J
Corrosion resistance
Very good resistance to general and intergranular
corrosion. Maximum resistance (practically
immune) to pitting corrosion, crevice corrosion and
stress corrosion cracking in chloride bearing
environments.
Scaling temperature:
The weld metal is resistant to oxidation in air up
to 1150°C. (Very high tensile strength and yield
strength up to approx. 850°C. Rp 0.2%=300 MPa,
Rm=400 MPa)
Approvals:
CE
Product data:
1,6 x 1000 5 kg 98201016
2,0 x 1000 5 kg 98201020
2,4 x 1000 5 kg 98201024