KT Group Members

Applications and Features

( 1 ) Designed for welding root pass of pipeline with DC and AC polarities.

( 2 ) Strong arc force, deep penetration, fast-freeze slag and good weldability.

( 3 ) Typical applications are high pressure pipes, oil tanks, boilers and outdoor welding.

Welding position

Welding Instruction

 ( 1 ) Please refer to Appendix A

Typical Chemical Composition of Weld Metal (wt%)

C

Si

Mn

P

S

0.11

0.27

0.66

0.019

0.007

Typical Mechanical Properties of Weld Metal

Tensile Strength
N/mm²

Yield Strength
N/mm²

Elongation
%

Charpy V-Notch

℃

J

500

437

25

0

88

-20

55

Size and Suggested Operating Range (AC or DC±)

Diameter (mm)

2.4

3.2

4.0

Current

(A)

AC

40~90

65~120

115~150

DC±

40~80

60~110

105~135