KT Group Members

Applications and Features

( 1 ) KMS-W is 63%Ni-24%Mo-6%Fe-5%Cr alloy.

( 2 ) Good mechanical properties at 980℃, but poor oxidation resistance above 780℃.

( 3 ) Suitable for welding Hastelloy W.

( 4 ) Ideal for welding jet engine repair and maintenance, gas turbine parts and rotor hubs.

Welding Position

Welding Instruction

( 1 ) Clean surface of base metal before welding.

( 2 ) Heat input should be controlled as low as possible.  

( 3 ) For other instructions, please refer to Appendix B.

Typical Chemical Composition of Wire (wt%)

C

Si

Mn

P

S

Cr

Mo

Fe

Ni

0.01

0.08

0.40

0.001

0.001

4.79

23.37

5.46

65.60

Typical Mechanical Properties of Weld Metal    

Tensile Strength

N/mm²

Yield Strength

N/mm²

Elongation

%

Charpy V-Notch

^oC

J

700

544

25

-

-

Size and Suggested Operating Range (DC+)

Diameter (mm)

0.8

0.9

1.2

1.6

Current (A)

140~180

160~200

190~230

200~250

Voltage (V)

24~27

25~28

26~30

29~33