GEN 409Nb Overview
GEN 409Nb is a ferritic stainless steel welding wire which is used to weld type 409 and 409Ti base alloys. The niobium addition forms carbides to improve corrosion resistance and promote the ferritic microstructure.
AWS 化学成分（典型）
| %C | %Cr | %Ni | %Mo | %Mn |
|---|---|---|---|---|
|
0.08 0.03 |
10.5 – 13.5 11.34 |
0.60 max 0.27 |
0.50 max 0.042 |
0.80 max 0.52 |
| %Si | %P | %S | %Cu | %Cb (Nb) |
|---|---|---|---|---|
|
1.00 max 0.53 |
0.04 max 0.021 |
0.03 max 0.002 |
0.75 max 0.02 |
10xC – 0.75 0.40 |
典型的焊接金属机械性能
| 抗拉强度 | 68,000 psi | 469 MPa |
| 屈服强度 | 50,000 psi | 345 MPa |
| 伸长 | 23% |
Typical Welding Parameters
| 过程 | Diameter | Voltage | Amperage | Gas/Flux |
|---|---|---|---|---|
| 氩弧焊 (GTAW) | 1/16” (1.6 mm) | 14 – 17 | 90 – 130 | 100% Ar |
| 3/32” (2.4 mm) | 15 – 20 | 120 – 170 | 100% Ar | |
| 1/8” (3.2 mm) | 16 – 20 | 200 – 350 | 100% Ar | |
| 米格 (GMAW) | .035” (0.9 mm) | 29 – 33 | 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 |