Comparable specifications
ASME SFA A 5.9: ER409Nb
EN ISO 14343-B: ~409Nb
Werkstoff Nr.: ~1.4009
Description and applications*
Stainless steel filler metal characterized by a ferritic microstructure used to join matching or dissimilar base metals, where niobium stabilization is preferred over titanium.
The niobium addition forms carbides to improve corrosion resistance, increase strength at high temperature, and promote the ferritic microstructure. The controlled carbon content along with the niobium addition provides excellent welding characteristics.
Not recommended for multi-pass applications.
This grade may be used for:
• joining of matching or dissimilar base metals;
• welding of automotive exhausts as well as flues and ducts subject to moderately high temperatures.
Weldabe base materials*
* Illustrative, not-exhaustive list
Type 409 409Ti, 409Nb, 439, 430 and other ferritic stainless steels.
All-weld metal mech. properties*
* For reference only values
Tensile strength (Rm): ≥ 450 N/mm2
Elongation: ≥ 15%
Yield Strength (Rp0.2): ≥ 250 N/mm2
| Chemical composition *For reference only values | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| C | Mn | Si | S | P | Ni | Cr | Mo | Cu | Nb |
| 0.02 | 0.40 | 0.40 | max | max | max | 10.50 | max | max | 10xC |
| 0.05 | 0.80 | 0.75 | 0.030 | 0.030 | 0.60 | 13.50 | 0.50 | 0.75 | 0.75 |
| Standard packaging data* | |||||
|---|---|---|---|---|---|
| Welding process | Product type | Dia (mm) | Packing type | Weight kg (lbs) | Length mm (inches) |
| GMAW ** | filler wire | 0.80 - 1.20 (0.030 - 0.047) | spools BS300 / D300 | 15 (33) | n.a. |
| GTAW ** | filler rod | 1.60 - 4.00 (1/16 - 5/32) | cardboard boxes / tubes | 5 (11) | 1000 (39.4) |
| SAW ** | filler wire | 1.60 - 4.00 (1/16 - 5/32) | basket rims B450 | 25 (55) | n.a. |
** GMAW: gas metal arc welding; GTAW: gas tungsten arc welding; SAW: submerged arc welding
Marking
Each filler rod for GTAW welding is durably marked with an identification traceable to the unique product type. Welding filler materials wound on spools or in coils are durably marked on the coil or spool with an identification traceable to the unique product type.
The outside of each unit package is suitably labelled with at minimum the following data: grade, diameter, heat, lot no., classifications.
Customized labels are available upon request.
Type approvals
Canadian Welding Bureau Cert. nr. NOV409CB (GMAW / GTAW)
Lot classification
All our productions fulfil the Class S3 requirements acc. to EN ISO 14344.
