KT Group Members

Applications and Features

(1)    Suitable for welding 490N/mm² grade steel with high deposition rate (about 160%).

(2)    Good weldability, low spatters, good slag removal and smooth bead appearance.

(3)    Applicable for fillet welds of T-beam or H-beam. Only one pass is needed to reach the required leg size without undercut.

Welding position

Welding Instruction

Please refer to Appendix A.

Typical Chemical Composition of Weld Metal (wt%)

C

Si

Mn

P

S

0.08

0.43

0.73

0.015

0.008

Typical Mechanical Properties of Weld Metal

Tensile Strength N/mm²

Yield Strength

N/mm²

Elongation

%

Charpy V-Notch

℃

J

540

485

25

0

72

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

-