KT Group Members

Applications and Features

(1)    Suitable for welding 620N/mm² grade steel.

(2)    Stable arc, good slag removal, good slag fluids, good mechanical properties and crack resistance of weld metal.

(3)    Applicable for pressure vessels/pipe, bridges, ship building and offshore structure.

Welding position

Welding Instruction

Please refer to Appendix A.

Typical Chemical Composition of Weld Metal (wt%)

C

Si

Mn

P

S

Ni

Mo

0.08

0.55

1.30

0.012

0.008

0.52

0.25

Typical Mechanical Properties of Weld Metal

Tensile Strength N/mm²

Yield Strength

N/mm²

Elongation

%

Charpy V-Notch

℃

J

650

540

29

0

169

-29

95

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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