Classification:
EN ISO 18274
AWS A5.14
S Ni 6625 (NiCr22Mo9Nb)
ERNiCrMo-3
Description:
Cromamig 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.
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+
Mechanical properties
Shielding gas:
I3, Ar + <30% He, 20-25 l/min
Yield strength, Rp0.2%:
Tensile Strength, Rm:
Elongation, A5
Impact energy, CV:
Typical
Wire composition, wt.%
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.
² Nb + Ta
Approvals:
TüV
CE
Product data:
Diam. Product code
mm
0,8
1,0
1,2
98202008
98202010
98202012
480 MPa
780 MPa
40%
20°C • 110 J
–196°C • 60 J
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)
Spool weight
15 kg S300
15 kg S300
15 kg S300
60-100
75-140
130-160
165
18-21
18-21
18-21
150-170
170-200
175-250
24-26
26-28
26-28