ER316LSI
Class: ER316LSI
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 = 18.0 – 20.0
Ni = 11.0 – 14.0
Mo = 2.0 – 3.0
Mn = 1.0 – 2.5
Si = 0.65 – 1.00
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
ER316LSI affords the same characteristics as 316L. The high silicon allows better arc stability along with minimal post-weld grinding. The low carbon in the weld metal gives excellent assurance against intergranular corrosion.
| Deposited Chemical Composition % (Typical) | ||
| C = 0.02 | Mo = 2.50 | P = 0.010 |
| Cr = 18.50 | Mn = 1.70 | S = 0.013 |
| Ni = 11.50 | Si = 0.90 | |
| Mechanical Properties (R.T.) | |
| Yield Strength | 58,000psi |
| Tensile Strength | 88,000psi |
| Elongation | 37% |
| Reduction of Area | 68% |
Deposited All Weld Metal Properties
Data is typical for ER316LSI 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.