GEN 312 Overview
GEN 312 is used to weld cast alloys of similar chemical composition. It is also used to weld dissimilar metals
and weld overlays. Its weld deposit contains significant percentage of ferrite in an austenite matrix and thereby highly resistance to weld metal cracks and fissures.
AWS 化学成分（典型）
| %C | %Cr | %Ni | %Mo | %Mn |
|---|---|---|---|---|
|
0.15 max 0.10 |
28.0 – 32.0 30.2 |
8.0 – 10.5 8.9 |
0.75 max 0.17 |
1.0 – 2.5 1.8 |
| %Si | %P | %S | %Cu |
|---|---|---|---|
|
0.30 – 0.65 1.80 |
0.03 max 0.02 |
0.03 max 0.01 |
0.75 max 0.15 |
典型的焊接金属机械性能
| 抗拉强度 | 105,000 psi | 724 MPa |
| 屈服强度 | 75,000 psi | 517 MPa |
| 伸长 | 25% |
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 | 125 – 200 | 100% Ar | |
| 1/8” (3.2 mm) | 16 – 20 | 200 – 350 | 100% Ar | |
| 米格 (GMAW) | .035” (0.9 mm) | 28 – 32 | 160 – 190 | 98%Ar – 2%O₂ |
| .045” (1.1 mm) | 29 – 33 | 180 – 220 | 98%Ar – 2%O₂ | |
| Sub Arc (SAW) | .093” (2.4 mm) | 28 – 32 | 250 – 450 | |
| .125” (3.2 mm) | 29 – 33 | 300 – 500 |