AWS A5.9 / ASME SFA5.9 ER308
JIS Z3321 YS308
EN ISO 14343-A-W 19 9
Applications
TIG welding of 18%-8%Ni stainless steel.
Applications
Characteristics on Usage
GST.308 is a filler rod for TIG welding with pure Ar gas.
As the weld metal contains ferrite, its crack resistibility is excellent.
Both its bead appearance and weldability are good.
Furthermore, resistance to corrosion and mechanical properties is good.
Typical Chemical Composition of All-Weld Metal (%)
|
C
|
Si
|
Mn
|
Ni
|
Cr
|
|
0.05
|
0.38
|
1.75
|
10.1
|
19.8
|
Typical Mechanical Properties of All-Weld Metal
|
Y.S
|
EL.
|
CVN-Impact
|
|
N/mm2(lbs/in2)
|
(%)
|
0℃(32℉)
|
|
610(88,500)
|
40
|
130(95)
|
Typical Welding Conditions (DC+)
|
Size
mm (in)
|
Currents
A
|
Gas Flow
(1 /min.)
|
Shielding gas
|
|
1.2 (.045) ~ 2.0 (5/64)
|
50 ~ 100
|
25
|
Ar
|
|
1.6 (1/16) ~ 3.2 (1/8)
|
100 ~ 200
|
25
|
Ar
|
|
2.4 (3/32) ~ 3.2 (1/8)
|
200 ~ 300
|
25
|
Ar
|
|
3.2 (1/8)
|
300 ~ 400
|
25
|
Ar
|
Approval
KR, ABS, DNV
