KT Group Members

Applications and Features

(1)    Suitable for welding 830N/mm² grade steel.

(2)    Good weldability, low diffusible hydrogen content, good crack resistance, good mechanical properties.

Welding position

Welding Instruction

Please refer to Appendix A.

Typical Chemical Composition of Weld Metal (wt%)

C

Si

Mn

P

S

Cr

Ni

Mo

0.08

0.45

1.23

0.011

0.011

0.28

2.49

0.42

Typical Mechanical Properties of Weld Metal

Tensile Strength N/mm²

Yield Strength

N/mm²

Elongation

%

Charpy V-Notch

℃

J

890

790

22

0

93

-20

69

Size and Suggested Operating Range (AC or DC+)

Diameter (mm)

3.2

4.0

5.0

6.0

Current

(A)

F/H-Fillet

90~130

130~180

180~240

230~300

V-up/OH

80~120

110~160

150~200

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