Classification: ER347Si (AWS A5.9)
TIG rod · Oerlikon Welding
Price on request
Prices for this catalogue are not published; every quotation is prepared for the requested quantity and delivery terms.
Key features
- The weld metal has a high resistance to corrosive media at service temperatures <400°C.
- The presence of niobium reduces the propensity of intergranular chromium carbide precipitation and thus reduces the susceptibility to intergranular corrosion.
- The increased silicon content results in increased weld pool fluidity to give a smooth deposit appearance.
Standards and classifications
| AWS A5.9 | ER347Si |
|---|---|
| EN ISO 14343-A | W 19 9 Nb Si |
Chemical composition
(Weight %), typical, wire
| C | Mn | Si | P | S | Cr | Ni | Nb |
|---|---|---|---|---|---|---|---|
| 0.04 | 1.6 | 0.85 | ≤0.025 | ≤0.020 | 19.5 | 10 | 0.5 |
Mechanical properties
Typical, all weld metal
| Shielding gas | Condition | Yield strength (MPa) | Tensile strength (MPa) | Elongation (%) | Impact ISO-V (J) | |
|---|---|---|---|---|---|---|
| +20°C | -120°C | |||||
| I1 | AW | ≥400 | ≥550 | ≥30 | ≥65 | ≥32 |
* AW = As welded
Shielding gas
| Designation (EN ISO 14175) | Type | Composition |
|---|---|---|
| I1 | Inert gas | Ar (100%) |
Approvals
TÜVDBCE
Versions and packaging
| Item number | Diameter (mm) | Net weight (kg) |
|---|---|---|
| W000275414 | 1.6 | 5.0 |
| W000283441 | 2.0 | 5.0 |
| W000283442 | 2.4 | 5.0 |
| W000275415 | 3.2 | 5.0 |
Availability of individual item numbers is confirmed with the quotation.
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