GEN 99 Overview
GEN 99 is used for GMAW and GTAW welding of cast iron. While the wire is primarily used to repair gray iron castings, it is also used for overlay and buildup. A preheat and interpass temperature of 350oF (175oC) minimum is recommended during welding.
AWS 化学成分（典型）
| %C | %Mn | %Ni | %Cu |
|---|---|---|---|
|
1.0 max
0.004
|
2.5 max
0.01
|
90 min
99.5
|
4.0 max
0.01
|
| %Si | %Fe | %S | Total |
|---|---|---|---|
|
0.75 max
0.11
|
4.0 max
0.15
|
0.03 max
0.001
|
1.0 max
<0.20
|
典型的焊接金属机械性能
| 抗拉强度 | 67,500 psi | 465 MPa |
| 屈服强度 | 35,000 psi | 241 MPa |
| 伸长 | 40 % |
Typical Welding Parameters
| 过程 | Diameter | Voltage | Amperage | Gas/Flux |
|---|---|---|---|---|
| 氩弧焊 (GTAW) | 1/16” (1.6 mm) | 14 – 18 | 90 – 130 | 100% Ar |
| 3/32” (2.4 mm) | 15 – 20 | 120 – 175 | 100% Ar | |
| 1/8” (3.2 mm) | 15 – 20 | 150 – 220 | 100% Ar | |
| 米格 (GMAW) | .035” (0.9 mm) | 29 – 33 | 160 – 180 | 75% Ar – 25% He |
| .045” (1.1 mm) | 29 – 33 | 180 – 220 | 75% Ar – 25% He | |
| .062” (1.6 mm) | 29 – 33 | 200 – 250 | 75% Ar – 25% He |