Stainless steels
FERVEO INX 347Si TIG
TIG rodCatalogue only
also as: solid wire
AWS class
ER 347 Si
EN ISO class
G/W 19 9 Nb Si
Tensile strength (Rm)
680 MPa
Service temperature
−110 … 400 °C
Classification
| AWS class | ER 347 Si |
|---|---|
| EN ISO class | G/W 19 9 Nb Si |
| Material no. (W.-Nr.) | 1.4551 |
| Other standards | ISO 20172: Gruppe 8.1 · TÜV Kennblatt 1000: Gruppe 29 |
Purpose
- TIG rod version of the Cr-Ni-Nb INX 347Si wire — same -110°C to +400°C service on corrosion-resistant stainless.
Why it works
Same alloy as INX 347Si MIG, as a TIG rod (DC-, I1 gas) — fine puddle control for root passes and thin sections.
Fields of application
- DIN 1.4301, 1.4303, 1.4306, 1.4310, 1.4312, 1.4319, 1.4541, 1.4550, 1.4552 (AISI 304/321/347).
Chemical composition
| Element | Typical, % |
|---|---|
| C | 0.06 |
| Cr | 19.5 |
| Mn | 1.3 |
| Nb | 12×C |
| Ni | 9.5 |
| Si | 0.85 |
Mechanical properties
| Tensile strength (Rm) | 680 MPa |
|---|---|
| Yield strength (Rp0.2) | 490 MPa |
| Elongation (A5) | 32 % |
| Impact energy (KV) | 80 J |
| Service temperature | −110 … 400 °C |
Process
| Polarity | DC− |
|---|---|
| Shielding gas | I1 |
Sizes and part numbers
| Ø | Request |
|---|---|
| 1 mm | |
| 1.6 mm | |
| 2.4 mm | |
| 3.2 mm |
Supply programme
boxes 5 kg · TIG cold wire D100
Cross-reference
| Replaces SAS 2-IG (Böhler) | Direct replacement |
| Replaces OK Tigrod 347 (ESAB) | Direct replacement |
| Replaces OK Tigrod 347Si (ESAB) | Direct replacement |
| Replaces TG-S347 (Kobelco) | Direct replacement |
| Replaces LNT 347Si (Lincoln) | Direct replacement |
| Replaces NIC 347 (Nicrotec) | Direct replacement |
| Replaces INERTROD 347Si (Oerlikon) | Direct replacement |
| Replaces 20/10NB (Selectarc) | Direct replacement |
Equivalence refers to the classification (AWS / EN ISO), not to product identity. In applications with a qualified procedure (WPS), validate the substitution before use.
Base metals
1.43011.43031.43061.43101.43121.43191.45411.45501.4552
Advantages
- Service -110°C to +400°C.
- Controlled TIG arc — suits root passes.