KT Group Members

Applications and Features

(1)  Good mechanical properties, deep penetration, good bead appearance, good slag removal and excellent X-ray quality welds.

(2)  Excellent toughness at low temperature due to its high basicity.

(3)  Suitable for welding carbon steel and 490N/mm² grade steel in ship-building, pressure vessel and offshore structure.

Welding Position

Welding Instruction

Please refer to Appendix E.

Typical Chemical Composition of Weld Metal (wt%)

C

Si

Mn

P

S

0.09

0.47

1.62

0.018

0.004

Typical Mechanical Properties of Weld Metal

Tensile Strength N/mm²

Yield Strength

N/mm²

Elongation

%

Charpy V-Notch

℃

J

598

516

31

-29

110

-40

86

Size and Suggested Operating Range (AC/DC+)

Diameter (mm)

3.2

4.0

4.8

Current (A)

F/H-fillet

300~450

400~600

500~700