Class: ER316H

AWS: A5.9

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

Weld Process Used for Tig (GTAW)

AWS Chemical Composition Requirements
C = 0.04 – 0.08
Cr = 18.0 – 20.0
Ni = 11.0 – 14.0
Mo = 2.0 – 3.0
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
ER316H is used to weld wrought and cast forms of similar composition. The presence of molybdenum increases its creep resistance at elevated temperatures. The lower ferrite level of this nominal composition reduces the rate of corrosion in certain media and is suitable for use at cryogenic temperatures.

Deposited Chemical Composotion % (Typical)
C = 0.06	Mo = 2.25	P = 0.012
Cr = 19.25	Mn = 1.80	S = 0.010
Ni = 11.25	Si = 0.40

 

Mechanical Properties (R.T.)
Yield Strength	59,000psi
Tensile Strength	88,000psi
Elongation	40%
Reducation of Area	60%

Deposited All Weld Metal Properties
Data is typical for ER316H 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.