GEN 347 Overview
GEN 347 is generally used for welding Cr‐Ni stainless steel base metals of similar chemical composition stabilized with either Ti or Nb (Cb). The presence of Nb (Cb) minimizes the possibility of intergranular carbide precipitation and thus susceptibility to intergranular corrosion.
Composición química de AWS (típica)
| %C | %Cr | %Ni | %Mo | %Mn |
|---|---|---|---|---|
| 0.08 max 0.05 |
19.0 – 21.5 19.5 |
9.0 – 11.0 9.1 |
0.75 max 0.21 |
1.0 – 2.5 1.7 |
| %Si | %P | %S | %Cu | %Nb+Ta |
|---|---|---|---|---|
| 0.30 – 0.65 0.46 |
0.03 max 0.02 |
0.03 max 0.01 |
0.75 max 0.11 |
10xC – 1.0 0.6 |
Propiedades mecánicas típicas del metal de soldadura
| Fuerza de Tensión: | 88,000 psi | 607 MPa |
| Límite elástico: | 58,000 psi | 400 MPa |
| Elongation (min.): | 40% |
Typical Welding Parameters
| Proceso | Diameter | Voltage | Amperage | Gas/Flux |
|---|---|---|---|---|
| TIG (GTAW) | 1/16” (1.6 mm) | 14 – 17 | 90 – 130 | 100% Ar |
| 3/32” (2.4 mm) | 15 – 20 | 120 – 175 | 100% Ar | |
| MIG (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 – 34 | 300 – 500 |