AWS A5.9 ER309L TIG MIG Stainless Steel Welding Wire

Applications and Features :

• Weld metal is austenite structure with low carbon 24%Cr-13%Ni.

• It has good crack and corrosion resistance due to its moderate ferrite content.

• It provides superior corrosion resistance and strength at 900°C due to more Ni and Cr content.

• It is suitable for welding dissimilar metals (carbon steel, Cr-Mo steel and stainless steel), clad steel, AISI 309S, and stainless steel with 13% Cr or 18% Cr.

 

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

0.018

0.35

1.88

0.011

0.008

23.88

12.87

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

Tensile Strength N/mm2(kgf/mm2)

Yield Strength N/mm2(kgf/mm2)

Elongation %

590(60.2)

400(40.8)

43

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