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W (ERNiMo-3)

AWS A5.14 ERNiMo-3
ASME SFA 5.14 ERNiMo-3

Alloy W filler Metal is designed for MIG, TIG, submerged arc and plasma arc welding of similar nickel-molybdenum
alloys such as Hastelloy® W. However this “super alloys used in high temperature service applications. The weld deposit of Alloy W exhibits good mechanical properties up to 1800F,
power it does exhibit poor oxidation resistance above
1400F and it should not be used for service application
in excess of 750 hours. Alloy W is used in the aerospace industry for jet engine repair and maintenance, gas turbine parts and rotor hubs.

TYPICAL WELD METAL CHEMISTRY (%) 

Ni

Balance

Mo

23.0-26.0

Cr

4.0-6.0

Fe

4.0-7.0

Si

1.0 max

W

1.0 max

C

0.12 max

Mn

1.0 max

P

0.20-0.50

P

0.04 max

S

0.03 max

*Co

2.50 max

V

0.60 max

Cu

0.50 max

Others (total)

0.50 max.

*Co is incidental

MINIMUM MECHANICAL PROPERTIES (as welded)

Tensile strength (psi)

100,000

Elongation in (%)

25

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