6025 – Inconel 625 TiG

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Aws 5.14 ERNiCrMo-3      

EN ISO 18274: S Ni6625 (NiCr22Mo9Nb)

DIN 1736: SG-NiCr21Mo9Nb (2.4831)



6025 is used for gas tungsten arc welding of Inconel® alloy 625, Incoloy® alloy 825, Incoloy® alloy 25-6Mo and a range of high alloy austenitic and super austenitic stainless steels. It is also used for surfacing of steel, for welding 9% nickel steels, and for welding various corrosion resistant alloys such as alloy 20. The weld metal has high strength over a broad temperature range and has resistance to localized attack such as pitting and crevice corrosion.


All Weld Metal Analysis (Typical Weight %)


C Mn Fe P S Si Cu Ni Al Cr Mo
0.01 0.05 .20  0.008  0.001 0.05  0.01 Bal.  0.12 22.3 8.8


Typical Mechanical Properties

Undiluted Weld Metal          Maximum Value Up to:

Tensile Strength                    114,000 PSI (790 MPa)

Yield Strength                       85,000 PSI (590MPa)

Elongation                             27%


Welding Current & Instructions

Recommended Current: DC- (100% Argon gas should be used to minimize burn-off of the tungsten electrode)

Welding Techniques:  Insure welding surface is free of contamination.

Recommended Amperage Settings:

Inches (mm)
Volts Amps
1/16 (1.6) 15-18 170-190
3/32 (2.5) 16-19 180-200
1/8  (3.2) 18-20  95-210