KT Group Members

Applications and Features

(1)    Suitable for welding 490N/mm² grade steel.

(2)    High deposition rate, good mechanical properties of weld metal, good crack resistance and good X-ray soundness.

(3)    Applicable for welding on large steel structures, tanks, pressure vessels. Ideal for that require excellent quality and performance such as pipelines in power plants and petrochemical.

Welding position

Welding Instruction

Please refer to Appendix A.

Typical Chemical Composition of Weld Metal (wt%)

C

Si

Mn

P

S

0.07

0.30

1.20

0.019

0.006

Typical Mechanical Properties of Weld Metal

Tensile Strength N/mm²

Yield Strength

N/mm²

Elongation

%

Charpy V-Notch

℃

J

555

465

31

-29

148

-40

112

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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