KT Group Members

Applications and Features

( 1 ) Suitable for butt or fillet welding of mild steel (thickness <25 mm ), such as ship-buildings, light structures and vehicles and bridges.

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

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

Welding position

Welding Instruction

Please refer to Appendix A

Typical Chemical Composition of Weld Metal (wt%)

C

Si

Mn

P

S

0.08

0.08

0.45

0.014

0.008

Typical Mechanical Properties of Weld Metal

Tensile Strength
N/mm²

Yield Strength
N/mm²

Elongation
%

Charpy V-Notch

℃

J

470

400

28

0

95

-20

75

Size and Suggested Operating Range (AC or DC±)

Diameter (mm)

3.2

4.0

5.0

6.0

Current
(A)

F/H-fillet

80~120

120~170

170~240

230~300

V-up/OH

60~110

110~160

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