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.
ComposiciĂłn quĂmica de AWS (tĂpica)
| %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
|
Propiedades mecĂĄnicas tĂpicas del metal de soldadura
| Fuerza de TensiĂłn | 67,500 psi | 465 MPa |
| LĂmite elĂĄstico | 35,000 psi | 241 MPa |
| Alargamiento | 40 % |
Typical Welding Parameters
| Proceso | Diameter | Voltage | Amperage | Gas/Flux |
|---|---|---|---|---|
| TIG (GTAW) | 1/16â (1.6 mm) | 14 â 18 | 90 â 130 | 100% Ar |
| 3/32â (2.4 mm) | 15 â 20 | 120 â 175 | 100% Ar | |
| 1/8â (3.2 mm) | 15 â 20 | 150 â 220 | 100% Ar | |
| MIG (GMAW) | .035â (0.9 mm) | 29 â 33 | 160 â 180 | 75% Ar â 25% He |
| .045â (1.1 mm) | 29 â 33 | 180 â 220 | 75% Ar â 25% He | |
| .062â (1.6 mm) | 29 â 33 | 200 â 250 | 75% Ar â 25% He |