KT Group Members

Applications and Features

(1)     KMX-70C is suitable for welding 490N/mm² grade steel.

(2)     Higher deposition rate and faster travel speed can increase the welding efficiency.

(3)     Stable arc, less spatter and good bead appearance.

(4)     Ideal for construction machine, steel structure and bridge.

Welding position

Welding Instruction

Please refer to Appendix D.

Typical Chemical Composition of Weld Metal (wt%)

C

Si

Mn

P

S

0.04

0.50

1.36

0.013

0.003

Typical Mechanical Properties of Weld Metal

Tensile Strength
N/mm²

Yield Strength

N/mm²

Elongation

%

Charpy V-Notch

℃

J

538

445

28

-30

72

Size and Suggested Operating Range (DC+)

Diameter (mm)

1.2

1.4

1.6

F/HF

100~300A/18~32V

200~400A/20~40V

220~450A/20~42V