Class: ER310

AWS: A5.9

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

Weld Process Used for Tig (GTAW)

AWS Chemical Composition Requirements
C = 0.08 – 0.15
Cr = 25.0 – 28.0
Ni = 20.0 – 22.5
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
ER310 is used for the welding of stainless steels of similar composition in wrought or cast form. The weld deposit is fully austenitic and calls for low heat during welding. This filler metal can also be used for dissimilar welding.

Deposited Chemical Composition % (Typical)
C = 0.10	Mo = 0.15	P = 0.012
Cr = 26.00	Mn = 1.70	S = 0.010
Ni = 21.00	Si = 0.50

 

Mechanical Properties (R.T.)
Yield Strength	57,000 psi
Tensile Strength	87,000 psi
Elongation	43%
Reduction of Area	68%

Deposited All Weld Metal Properties
Data is typical for ER310 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.