Super 6 309LSi Stainless Steel MIG Wire - 0.8-1.2mm Dia. - 5kg & 15kg Spools
- Stainless steel MIG wire for welding similar and dissimilar stainless steels
- Tensile strength 650 N/mm², hardness 180 BHN, melting point 1440°C
- Requires 98% argon / 2% oxygen shielding gas, DC+ polarity
- Meets AWS A5.9 ER 309LSI, EN ISO 14343–23 12 LSI, BS 2901 309 S93
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MIG Wire Finder

Super 6 309 LSI is a stainless steel MIG wire designed for welding similar and dissimilar stainless steels, offering high corrosion resistance and reliable mechanical properties.
Super 6 309 LSI stainless steel MIG wire is engineered for joining stainless steels of similar composition as well as dissimilar grades.
Its low carbon and high silicon content provides smooth arc characteristics, excellent wetting, and superior bead appearance, while reducing the risk of intergranular corrosion.
With a tensile strength of 650 N/mm², hardness of 180 BHN, and a melting point of 1440°C, this wire offers dependable performance across chemical, power generation, repair, and maintenance industries.
It is suitable for welding positions PA, PB, PF, PC, and PE, operating on DC+ polarity with 98% argon / 2% oxygen shielding gas.
Manufactured to meet AWS A5.9 ER 309LSI, EN ISO 14343 – 23 12 LSI, and BS 2901 309 S93 standards, Super 6 309 LSI ensures consistent quality and durability.
| Wire Diameter | 0.8mm | 1.0mm | 1.2mm |
| Spool Size | 15kg (typical) |
| Material | Stainless Steel MIG Wire (ER 309LSI) |
| Shielding Gas | 98% Argon / 2% Oxygen |
| Current | DC+ |
| Welding Positions | PA | PB | PF | PC | PE |
| Tensile Strength (UTS) | 650 N/mm² |
| Hardness | 180 BHN |
| Melting Point | 1440°C |
| Carbon (C) | 0.10 |
| Silicon (Si) | 0.40 |
| Manganese (Mn) | 1.50 |
| Nickel (Ni) | 13.0 |
| Chromium (Cr) | 26.0 |
| Standards | AWS A5.9 ER 309LSI | EN ISO 14343 – 23 12 LSI | BS 2901 309 S93 |
| Industries | Chemical | Power Generation | Repair | Maintenance |
| Brand | Super 6 |
| shopping_price_ranges | 25 - 50 |
| Material Type | Stainless Steel (ER3xx) |
| AWS Classification | ER309LSi |
| Spool Size | Small (2-7kg), Standard (12.5-25kg) |
| Diameter | 1.0mm · |
| Weight | 5kg · |
| SKU | Diameter | Weight | Stock Status | |
|---|---|---|---|---|
| 7193 | 0 8mm | 5kg | In Stock | £42.77 ex VAT £51.32 inc VAT |
| 7195 | 0 8mm | 15kg | In Stock | £121.20 ex VAT £145.44 inc VAT |
| 7194 | 1 0mm | 5kg | In Stock | £41.95 ex VAT £50.34 inc VAT |
| 7196 | 1 0mm | 15kg | In Stock | £112.41 ex VAT £134.89 inc VAT |
| 7197 | 1 2mm | 15kg | In Stock | £108.03 ex VAT £129.64 inc VAT |
Super 6 309LSi Stainless Steel MIG Wire - 0.8-1.2mm Dia. - 5kg & 15kg Spools Get in touch
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