Weld Star - ER 308LSi Stainless MIG Wire
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- Low-carbon austenitic stainless steel MIG wire with added silicon for smooth welds
- Excellent corrosion resistance and mechanical strength down to -196°C
- Available in multiple diameters on 15kg spools; requires DC+ and M12 or M13 shielding gas
- Suitable for 304, 305, 347 and similar austenitic stainless steels in pipework, vessels, and food processing
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MIG Wire Finder

Low-carbon stainless MIG wire with added silicon for smooth welds, excellent corrosion resistance, and reliable strength down to -196°C.
Weld Star ER 308LSi is a stainless steel MIG wire characterised by its low carbon content, which reduces the risk of carbide precipitation and intergranular corrosion. Its increased silicon content improves weld pool fluidity, resulting in smooth bead appearance and consistent weld quality.
This wire delivers excellent resistance to atmospheric and general corrosion, along with dependable mechanical strength even at sub-zero temperatures. Precision layer wound, it ensures stable feeding and consistent performance across a wide range of stainless steel fabrication applications.
It is suitable for welding base metals such as 304, 305, 347 and other austenitic stainless steels with similar chemical composition. Common industries include vessel production, pipework, plate fabrication, food processing, and general stainless fabrication.
| Wire Classification | EN ISO 14343-A G 19 9 LSi | AWS A5.9 ER 308LSi |
| Wire Type | Austenitic Stainless Steel MIG Wire |
| Diameters | 0.8mm, 1.0mm, 1.2mm |
| Spool Size | 15kg |
| Current Type | DC+ |
| Shielding Gas | EN ISO 14175 – M12 (Ar + O₂/CO₂), M13 (Ar + CO₂) |
| Welding Positions | EN ISO 6947 – PA, PB, PC, PD, PE, PF |
| Welding Parameters – M12 | 0.8mm: 40–120A, 15–20V 1.0mm: 80–160A, 16–22V 1.2mm: 100–210A, 17–23V |
| Welding Parameters – M13 | 0.8mm: 160–210A, 24–28V 1.0mm: 180–280A, 25–30V 1.2mm: 200–300A, 26–32V |
| Tensile Strength | ≥510 MPa |
| Yield Strength | ≥320 MPa |
| Elongation | ≥25% |
| Impact Strength | ≥80 J |
| Chemical Composition (typical) | C 0.023% | Mn 1.86% | Si 0.89% | S 0.001% | P 0.025% Ni 9.30% | Cr 19.68% | Mo 0.027% | Cu 0.041% |
Typical Applications
- Pipework
- Plate fabrication
- Vessel production
- Food processing
- General stainless fabrication
Typical Base Materials
- W.Nr: 1.4306, 1.4301, 1.4541, 1.4311, 1.4371, 1.4452
- DIN: X2CrNi 19 11, X4CrNi 18 10, X6CrNiTi 18 10, X6CrNiNb 18 10
- AISI: 202, 302, 304L, 304, 305, 321, 347
| Brand | Weld Star |
| shopping_price_ranges | 100 - 200 |
| Material Type | Stainless Steel (ER3xx) |
| AWS Classification | ER308LSi |
| Spool Size | Standard (12.5-25kg) |
| Diameter | 0.8mm · |
| Weight | 15kg |
| SKU | Diameter | Weight | Stock Status | |
|---|---|---|---|---|
| 6011100121 | 0 8mm | 15kg | In Stock | £106.67 ex VAT £128.00 inc VAT |
| 6011100122 | 1 0mm | 15kg | In Stock | £106.67 ex VAT £128.00 inc VAT |
Technical Data Sheet
Download PDFA carriage charge is applied to orders, for standard 1-2 day shipments to mainland destinations within the United Kingdom. Other destinations and premium services are available but subject to additional freight charges.
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