Welding wire VDM FM 625 2.4831 ER-NiCrMo3

Standard Designation

EN ISO 18274

S Ni 6625

Material Number

2.4831

AWS/ASME SFA-5.14

ER NiCrMo - 3

Main

Application Areas

Nickel-chromium-molybdenum alloys, e.g. NiCr 22 Mo 9 Nb

NiCr 22 Mo 6 Cu (2.4618), NiCr 22 Mo 7 Cu (2.4619) and their connections with un-, low- and high-alloyed steel/cast steel; claddings; cryogenic nickel steels, e.g. X 8 Ni 9 (1.4529)

Black-and-white connections for operating temperatures above +300°C.

Welding Positions according to DIN EN ISO 6947 MIG

PA, PB, PF

Mechanical Properties

of Weld Metal

(Typical Values)

Welding Process

Shielding Gas

Heat Treatment

TIG

Welding Argon

untreated

MIG

Welding Argon

untreated

Test Temperature

[°C]

+20°C

-196°C

+20°C

-196°C

0.2 % Proof Stress     R_p0.2

MPa

>295

Tensile Strength               R_m

MPa

>760

Elongation            A₅

[%]

>30

Impact Energy        A_V

[J]

LNB

Special Notes

Cleanliness of the workpiece in the weld seam area is a prerequisite for a crack-free joint. For thin sheets and root welds, backing gas protection is required. For V and X seams, the opening angle should be at least 70°.

TIG - Always guide the welding rod within the shielding gas area.

MIG - Preferentially weld wire electrodes with pulsed arc.