Applications and Features :

• Weld metal is austenite structure with 23%Cr-13%Ni-2%Mo.

• It has better strength and corrosion resistance at high temperature than KMS-309 due to its additional Mo content.

• It provides good crack resistance due to its moderate ferrite content.

• It is suitable for welding dissimilar metals (carbon steel and stainless steel).

 

Welding Instruction

(1) Use Ar blend with 1~2%O2 for high current, spray transfer welding. (2) Use Ar blend with 1~2%CO2 for low current, short-circuit transfer welding.

Typical Chemical Composition of Weld Metal (wt. %) (Shielding Gas : Ar+2%O2)

C

Si

Mn

P

S

Cr

Ni

Mo

0.025

0.36

1.88

0.013

0.009

24.41

13.32

2.44

Typical Mechanical Properties of Weld Metal (Shielding Gas : Ar+2%O2)

Tensile Strength N/mm2(kgf/mm2)

Yield Strength N/mm2(kgf/mm2)

Elongation %

620(63.2)

440(44.9)

39

Size and Suggested Operating Range (DC+)

Diameter         (mm)   Operating range

0.8

0.9

1.0

1.2

1.4

1.6

Ar+1~2%CO2

Amp

40~120

60~140

80~160

100~210

—

—

Volt

15~20

15~21

16~22

17~22

—

—

Ar+1~2%O2

Amp

160~210

170~260

180~280

200~300

210~320

220~330

Volt

24~28

24~30

24~30

24~30

24~32

24~32