KT Group Members

Applications and Features

( 1 ) KMS-686 is 57%Ni-21%Cr-16%Mo-4%W alloy.

( 2 ) It provides excellent oxidizing acid, reducing acid, pitting, and crevice corrosion resistance.

( 3 ) Suitable for welding Hastelloy C-22, Hastelloy C-276, Inconel Alloy 625 and Inconel Alloy 686.

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

Al

W

Ni

0.01

0.07

0.30

0.001

0.001

21.20

15.90

0.40

0.20

3.40

58.10

Typical Mechanical Properties of Weld Metal    

Tensile Strength

N/mm²

Yield Strength

N/mm²

Elongation

%

Charpy V-Notch

^oC

J

760

545

35

-

-

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