Comparable specifications
ASME SFA A 5.9: ER347
EN ISO 14343-A: 19 9 Nb
Werkstoff Nr.: 1.4551
Description and applications*
Austenitic stainless steel filler metal with a significant presence of niobium, that provides resistance to intergranular chromium carbide precipitation and thus increased resistance to intergranular corrosion. The high silicon content improves the usability of the filler metal in the gas metal arc welding process.
Good general corrosion resistance and pitting corrosion resistance.
This grade may be used for:
• welding and overlay of chromium-nickel stainless steel base metals of similar composition stabilized either by Nb or Ti (e.g. types 321 and 347);
• applications at temperatures higher than 400°C;
• applications for the chemical industry, particularly at high temperatures (e.g. equipments intermittently heated within a temperature ranges varying from 450°C to 800°C) a/o for applications such as firewalls and pressure vessels;
• applications for the food processing, dairy, oil and textile industry due to its good corrosion resistance.
Weldabe base materials*
* Illustrative, not-exhaustive list
All 300 series austenitic stainless steel, particularly 321 and 347 (stabilized).
All-weld metal mech. properties*
* For reference only values
Tensile strength (Rm): ≥ 550 N/mm2
Elongation: ≥ 25%
Yield Strength (Rp0.2): ≥ 350 N/mm2
Charpy-V Impact (R.T.): ≥ 50 J
| Chemical composition *For reference only values | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| C | Mn | Si | S | P | Ni | Cr | Mo | Cu | Nb |
| max | 1.00 | 0.65 | max | max | 9.00 | 19.00 | max | max | 10xC |
| 0.08 | 2.50 | 1.00 | 0.020 | 0.030 | 11.00 | 21.00 | 0.50 | 0.50 | 1.00 |
| 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) |
** GMAW: gas metal arc welding; GTAW: gas tungsten 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.
CE marking type-testing performed and available.
Customized labels are available upon request.
Type approvals
Canadian Welding Bureau Certificate nr. NOV347S (GMAW / GTAW)
DB Zulassungs nr. 43.097.12 (GMAW / GTAW)
TUV Nord Kennblatt nr.04028 (GMAW) TUV Nord Kennblatt nr. 04029 (GTAW)
Lot classification
All our productions fulfil the Class S3 requirements acc. to EN ISO 14344.
