GEN 385 Overview
GEN 385 is mainly used for welding of ASTM B625, B673, and B677 (UNS N08904) materials for handling of sulfuric acid and many chloride containing media. It can also be used for joining UNS N08904 base metals to other grade of stainless steels.
AWS Chemical Composition (Typical)
| %C | %Cr | %Ni | %Mo | %Mn |
|---|---|---|---|---|
| 0.025 max 0.010 |
19.5 – 21.5 19.94 |
24.0 – 26.0 25.10 |
4.2 – 5.2 4.30 |
1.0 – 2.5 1.66 |
| %Si | %P | %S | %Cu |
|---|---|---|---|
| 0.50 max 0.35 |
0.02 max 0.013 |
0.03 max 0.001 |
1.2 – 2.0 1.46 |
Typical Weld Metal Mechanical Properties
| Tensile Strength | 83,000 psi | 572 MPa |
| Yield Strength | 55,000 psi | 379 MPa |
| Elongation | 35 % |
Typical Welding Parameters
| Process | Diameter | Voltage | Amperage | Gas/Flux |
|---|---|---|---|---|
| TIG (GTAW) | 1/16” (1.6 mm) | 14 – 17 | 80 – 125 | 100% Ar |
| 3/32” (2.4 mm) | 15 – 20 | 125 – 200 | 100% Ar | |
| 1/8” (3.2 mm) | 16 – 20 | 150 – 225 | ||
| MIG (GMAW) | .035” (0.9 mm) | 26 – 31 | 150 – 230 | 98%Ar – 2%O2 |
| .045” (1.1 mm) | 28 – 33 | 180 – 280 | 98%Ar – 2%O2 | |
| Sub Arc (SAW) | .093” (2.4 mm) | 28 – 31 | 270 – 350 | |
| .125” (3.2 mm) | 29 – 33 | 325 – 475 |