AWS A5.9: ER 308Si | EN ISO 14343-A: G 19 9
StarBlaze MIG 308Si is a stainless steel MIG wire designed for welding austenitic stainless steels such as AISI 301, 302, 304, and 308. With a 20Cr/9Ni composition and silicon content of 0.65–1.00%, it delivers excellent weldability, arc stability, and bead appearance. Ferrite content is controlled between 5–10% for balanced corrosion resistance and crack resistance. Precision layer winding ensures smooth wire feeding, and the wire is specially processed for clean welds and reliable performance across all welding positions.
Typical Chemical Composition (%)
| C | Mn | Si | Cr | Ni | Mo | Cu | S | P |
| 0.08 max | 1.60 – 2.50 | 0.65 – 01.00 | 19.50 – 22.00 | 9.00 – 11.00 | 0.25 max | 0.25 max | 0.03 max | 0.03 max |
Typical All-Weld Mechanical Properties
| Yield Strength (N/mm²) | Tensile Strength (N/mm²) | Elongation A5 (%) |
| ≥ 350 | ≥ 550 | ≥ 35% |
Recommended Welding Data
| Shielding Gas | Unit | 0.8 mm | 1.0 mm | 1.2 mm |
| Ar + 1–2% CO₂ | Amp | 40-120 | 80-160 | 100-210 |
| Volt | 15-20 | 16-22 | 17-22 | |
| Ar + 1–2% O₂ | Amp | 160-210 | 180-280 | 200-300 |
| Volt | 24-28 | 24-30 | 24-30 |
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