KT Group Members

Applications and Features

( 1 ) Weld metal is austenitic structure with 29%Cr-9%Ni.

( 2 ) High Cr content provides excellent corrosion resistance.

( 3 ) High ferrite level in its austenitic structure provides better crack resistance.

( 4 ) Suitable for welding tool steels, hard to weld steels, cast and wrought alloys and dissimilar alloy.

Welding Position

Welding Instruction

( 1 ) Weld metal becomes brittle at high service temperature or interpass temperature

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

( 3 ) For welding dissimilar alloy, please refer to Appendix I.

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

Typical Chemical Composition of Weld Metal (wt%)

C

Si

Mn

P

S

Cr

Ni

0.12

0.49

1.62

0.012

0.011

28.98

10.09

Typical Mechanical Properties of Weld Metal

Tensile Strength

N/mm²

Yield Strength

N/mm²

Elongation

%

740

600

25

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