KT Group Members

Applications and Features

( 1 ) Weld metal is austenitic structure with 19%Cr-12%Ni-3%Mo.

( 2 ) 2-3% molybdenum improves pitting corrosion resistance of the weld deposit.

( 3 ) The high carbon deposit provides creep strength and a high tensile strength at elevated temperatures

( 4 ) Ideal for welding Types 321H and 347H, as well as furnace equipment, turbine components, and parts in the petrochemical industry, power generation plants, and nuclear facilities.

Welding Position

Welding Instruction

( 1 ) Use Ar+1~2%O₂ for spray transfer and Ar+1~2%CO₂ for short-circuit transfer.

( 2 ) For other instructions, please refer to Appendix B and F.

Typical Chemical Composition of Weld Metal (wt%)

C

Si

Mn

P

S

Cr

Ni

Mo

0.07

0.48

1.55

0.012

0.011

20.42

13.31

2.26

Typical Mechanical Properties of Weld Metal

Tensile Strength

N/mm²

Yield Strength

N/mm²

Elongation

%

590

430

43

Size and Suggested Operating Range (DC+)

Diameter (mm)

0.8

0.9

1.0

1.2

1.4

1.6

Ar+1~2%CO₂

Current (A)

40~120

60~140

80~160

100~210

-

-

Voltage (V)

15~20

15~21

16~22

17~22

-

-

Ar+1~2%O₂

Current (A)

160~210

170~260

180~280

200~300

210~320

220~330

Voltage (V)

24~28

24~30

24~30

24~30

24~32

24~32