GEN 825 Overview
GEN 825 is used for TIG, MIG, and SAW welding of nickel-iron-chromium-molybdenum-copper alloys. This can also be used to overlay cladding where similar chemical composition is required.
AWS Chemical Composition (Typical)
| %C | %Cr | %Ni | %Mo | %Ti | %Fe | %Mn |
|---|---|---|---|---|---|---|
|
0.05 max.
0.85
|
0.01
21.5
|
19.5 – 23.5
39.5
|
38.0 – 46.0
3.10
|
2.5 – 3.5
0.60 – 1.20
|
22.0 min.
32.7
|
1.0 max.
0.50
|
| %Si | %P | %S | %Cu | %Al | Total Others |
|---|---|---|---|---|---|
|
0.50 max.
0.25
|
0.03 max.
0.015
|
0.03 max.
0.002
|
1.5 – 3.0
1.9
|
0.20 max.
0.14
|
0.50 max.
|
Typical Weld Metal Mechanical Properties
| Tensile Strength | 88,000 psi | 607 MPa |
| Yield Strength | 61,000 psi | 420 MPa |
| Elongation | 34% |
Typical Welding Parameters
| Process | Diameter | Voltage | Amperage | Gas/Flux |
|---|---|---|---|---|
| TIG (GTAW) | .093” (2.4 mm) | Direct Current | 100% Ar | |
| MIG (GMAW) | .035” (0.9 mm) | 29 – 33 | 160 – 190 | 75% Ar – 25% He |
| .045” (1.1 mm) | 29 – 33 | 180 – 220 | 75% Ar – 25% He | |
| .062” (1.6 mm) | 29 – 33 | 210 – 250 | 75% Ar – 25% He | |
| Sub Arc (SAW) | .093” (2.4 mm) | 29 – 32 | 300 – 350 | |
| .125” (3.2 mm) | 29 – 32 | 400 – 550 | ||