KT Group Members

Applications and Features

( 1 ) Suitable for butt or fillet welding of mild steel (thickness <20 mm), such as ship buildings, machines, steel structures, vehicles and bridges.

( 2 ) Excellent mechanical properties, capable of X-ray quality welds and crack resistance.

( 3 ) Stable arc, easy control of weld puddle, low spatters, good slag removal, bead appearance and good penetration.

Welding position

Welding Instruction

Please refer to Appendix A

Typical Chemical Composition of Weld Metal (wt%)

C

Si

Mn

P

S

0.09

0.10

0.47

0.022

0.007

Typical Mechanical Properties of Weld Metal

Tensile Strength
N/mm²

Yield Strength
N/mm²

Elongation
%

Charpy V-Notch

℃

J

495

438

28

0

110

-20

82

Size and Suggested Operating Range (AC or DC±)

Diameter (mm)

2.6

3.2

4.0

5.0

6.0

Current

(A)

F/H-fillet

70~110

110~150

130~190

170~240

230~300

V/OH

40~70

60~120

110~160

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