ER309LSI
Alloy Type: A5.9, STAINLESS STEEL Bare, Cored and Stranded Electrodes
ER309LSI is similar in composition to ER309L with a higher silicon content, which produces weld beads that are exceptionally smooth due to good wetting action. 309LSI is a great choice when cosmetic appearance is important.
| AWS Class: ER309LSI | Certification: AWS A5.9/ A5.9M:2006 |
| Alloy: ER309LSI | AWS/ASME SFA A5.9 |
| Welding Position:
F, V, OH, H |
Current:
MIG-DCEP TIG-DCEN |
Typical Properties (as welded)
| Yield, ksi: | 64 |
| Tensile Strength, ksi: | 87 |
| Elongation%, min: | 41 |
Typical Wire Chemistry as per AWS A5.9 (single values are maximum)
| C | Cr | Ni | Mo | Mn | Si | P | S | Cu |
| 0.03 | 23.0-25.0 | 12.0-14.0 | 0.75 | 1.0-2.5 | 0.65-1.00 | 0.03 | 0.03 | 0.75 |
| Typical Welding Parameters | ||||
| Diameter | Process | Volt | Amps | |
| in | (mm) | |||
| .023 | (0.6) | GMAW | 14-19 | 30-85 |
| .030 | (0.8) | GMAW | 15-20 | 45-125 |
| .035 | (0.9) | GMAW | 16-22 | 60-150 |
| .045 | (1.14) | GMAW | 17-22 | 90-210 |
| 1/16” | (1.6) | GTAW | 12 | 80-150 |
| 3/32” | (2.4) | GTAW | 12 | 150-250 |
| 1/8” | (3.2) | GTAW | 12 | 200-375 |