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.
Composition chimique AWS (typique)
| %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 |
Propriétés mécaniques typiques du métal soudé
| Résistance à la traction | 68,000 psi | 469 MPa |
| Limite d'élasticité | 50,000 psi | 345 MPa |
| Élongation | 23% |
Typical Welding Parameters
| Processus | 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 – 170 | 100% Ar | |
| 1/8” (3.2 mm) | 16 – 20 | 200 – 350 | 100% Ar | |
| MIG (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 |