TIG Wires
SUPERLINK TIG-347
A precision-drawn, bright-annealed solid TIG wire for GTAW welding. ER347 type. Produces clean, smooth weld deposits with excellent positional welding characteristics. Suitable for all-position GTAW including root passes. Use pure Argon shielding gas.
Technical specifications
| C | Cr | Ni | Nb+Ta | Mn |
|---|---|---|---|---|
| ≤0.08% | 19.0–21.5% | 9.0–11.0% | 10×C–1.0% | 1.0–2.5% |
| Tensile strength | ≥530 MPa |
|---|---|
| Yield strength | ≥360 MPa |
| Elongation | ≥30% |
| Diameter |
|---|
| 1.6mm |
| 2.0mm |
| 2.4mm |
| 3.2mm |
Welding procedure & parameters
DCEN (electrode negative — tungsten positive). Shielding gas: 100% Argon. Back purge with Ar for root passes on pipe. Wire dia: 1.6, 2.0, 2.4, 3.2mm. Current: 50–180A depending on dia and position.
Typical applications
GTAW of 347, 321 stabilised SS; high-temperature refinery, exhaust systems, furnace parts to 800°C.
Storage & handling notes
Do not touch wire surface with bare hands — contamination causes porosity. Store sealed in original packaging. Pure Argon only — no CO₂ or He unless specified.
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