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