GEN 309LSi Overview
GEN 309LSi has the same chemical composition as GEN 309L with higher silicon content to provide better arc
stability and improve bead appearance. GEN 309LSi is suitable for joining stainless steel type 304, 321 and
347. It is also widely used for cladding over carbon or low alloy steels.
AWS 化学成分（典型）
| %C | %Cr | %Ni | %Mo | %Mn |
|---|---|---|---|---|
| 0.03 max. 0.015 |
0.015 23.3 |
23.0 – 25.0 13.8 |
23.3 0.08 |
12.0 – 14.0 1.9 |
| %Si | %P | %S | %Cu |
|---|---|---|---|
| 0.65 – 1.00 0.83 |
0.03 max. 0.02 |
0.03 max. 0.01 |
0.75 max. 0.06 |
典型的焊接金属机械性能
| 抗拉强度： | 87,000 psi | 600 MPa |
| 屈服强度： | 60,000 psi | 413 MPa |
| 伸长： | 35 % |
Typical Welding Parameters
| 过程 | Diameter | Voltage | Amperage | Gas/Flux |
|---|---|---|---|---|
| 氩弧焊 (GTAW) | 1/16” (1.6 mm) | 14 – 17 | 90 – 130 | 100% Ar |
| 3/32” (2.4 mm) | 15 – 20 | 120 – 175 | 100% Ar | |
| 1/8” (3.2 mm) | 16 – 20 | 200 – 330 | 100% Ar | |
| 米格 (GMAW) | .035” (0.9 mm) | 26 – 31 | 150 – 230 | 98% Ar – 2% O2 |
| .045” (1.1 mm) | 28 – 32 | 180 – 280 | 98% Ar – 2% O2 | |
| Sub Arc (SAW) | .093” (2.4 mm) | 28 – 32 | 300 – 400 | |
| .125” (3.2 mm) | 29 – 32 | 400 – 550 |