

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