Class: ER308L

AWS: A5.9

Conforms to Certification: AWS A5.9              ASME SFA A5.9

Weld Process Used for Tig (GTAW)

AWS Chemical Composition Requirements
C = 0.03 max
Cr = 19.5 – 22.0
Ni = 9.0 – 11.0
Mo = 0.75 max
Mn = 1.0 – 2.5
Si = 0.30 – 0.65
P = 0.03 max
S = 0.03 max
Cu = 0.75 max

Available Sizes
.030 x 36
.035 x 36
.045 x 36
1/16 x 36
3/32 x 36
1/8 x 36
3/16 x 36
5/32 x 36

Application
ER308L has the same analysis as type 308 except the carbon content has been held to a maximum of .03% to reduce the possibility of intergranular carbide precipitation. ER308L is ideal for welding Types 304L, 321, and 347 stainless steels. This is a suitable wire for applications at cryogenic temperatures.

Deposited Chemical Composition % (Typical)
C = 0.02	Si = 0.32	Mn = 1.70
P = 0.011	S = 0.009	Cr = 20.0
Ni = 10

 

Mechanical Properties (R.T.)
Yield Strength	57,000 psi
Tensile Strength	87,000 psi
Elongation	34%
Reduction of Area	56%

Deposited All Weld Metal Properties
Data is typical for ER308L weld metal deposited by Tig using 100% Argon as the shielding gas.

 

Recommended Welding Parameters
GTAW “Tig Process”
Wire Diameter	Amps DCSP	Volts	Shielding Gas
.035	60-90	12-15	Argon 100%
.045	80-110	13-16	Argon 100%
1/16	90-130	14-16	Argon 100%
3/32	120-175	15-20	Argon 100%

Note: Parameters for tig welding are dependent upon plate thickness and welding position.
Other shielding Gases may be used for Tig welding. Shielding gases are chosen taking Quality, Cost, and Operability into consideration.