KT Group Members

Applications and Features

(1)    Suitable for welding 550~610N/mm² grade steel.

(2)    Contains 1.7%Ni, which provides excellent low temperature impact testing.

(3)    Good X-ray soundness, good mechanical properties and good weldability.

(4)    AC welding is preferred.

Welding position

Welding Instruction

Please refer to Appendix A.

Typical Chemical Composition of Weld Metal (wt%)

C

Si

Mn

P

S

Ni

Mo

0.07

0.52

1.10

0.010

0.006

1.72

0.16

Typical Mechanical Properties of Weld Metal

Tensile Strength N/mm²

Yield Strength

N/mm²

Elongation

%

Charpy V-Notch

℃

J

660

560

31

0

172

-40

120

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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