KT Group Members

Applications and Features

( 1 ) KMS-72 is 55%Ni-44%Cr alloy.

( 2 ) The excellent corrosion resistance at high temperature due to high Cr content in atmospheres containing sulfur and vanadium.

( 3 ) Suitable for welding Inconel 671 and 690 alloy.

( 4 ) Ideal for cladding the water cooled wall of boiler with sulfur fuel .

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

Ti

Fe

Ni

0.02

0.02

0.09

0.003

0.001

42.42

0.54

0.08

56.50

Typical Mechanical Properties of Weld Metal    

Tensile Strength

N/mm²

Yield Strength

N/mm²

Elongation

%

Charpy V-Notch

^oC

J

735

558

40

-

-

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