KT Group Members

Applications and Features

(1)    KM-80SNi1 is suitable for welding 490N/mm² grade steel.

(2)    Excellent toughness at -45℃ due to 1% Ni content.

(3)    Ideal for welding in the pressure vessel, tank and pipeline at low temperature service.

Welding position

Welding Instruction

Please refer to Appendix B.

Typical Chemical Composition of Weld Metal (wt%)

C

Si

Mn

P

S

Ni

0.09

0.45

0.93

0.011

0.004

0.97

Typical Mechanical Properties of Weld Metal

Tensile Strength N/mm²

Yield Strength

N/mm²

Elongation

%

Charpy V-Notch

℃

J

598

509

29

-29

87

-45

69

Size and Suggested Operating Range (DC+)

Diameter (mm)

0.8

0.9

1.0

1.2

1.4

1.6

Current

(A)

H/HF

50~180

50~200

50~220

80~350

100~470

200~500

V-up

50~100

50~140

50~140

50~140

100~180

-

OH

50~100

50~120

50~120

50~160

-

-

V-down

50~100

50~200

-

-

-

-