Weld Star ER 312 Stainless MIG Wire 15kg Multiple Diameters Available
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- ER 312 stainless MIG wire for dissimilar metal applications
- Two-phase weld deposit with high ferrite content
- Ideal for joining carbon steel to stainless steel
- Available in multiple diameters on 15kg spools

Weld Star ER 312 is a versatile austenitic stainless steel MIG wire formulated to join dissimilar metals with confidence. Its two-phase weld structure and high ferrite content make it ideal for carbon steel to stainless steel applications and for welding cast alloys of similar composition. Supplied precision layer wound on 15kg spools and available in multiple diameters.
Features
- Two-phase weld deposit with substantial ferrite in an austenite matrix
- Excellent for dissimilar metal joining, particularly grades high in nickel
- High chromium and nickel composition
- Well suited to heterogeneous welding where one component is fully austenitic
- Good corrosion and oxidation resistance
- Multiple diameter options available
| Specification | Details |
|---|---|
| Brand | Weld Star |
| Process | MIG |
| Grade | ER 312 |
| Spool Weight | 15kg |
| Diameter | 1.2 mm · |
| Brand | Weld Star |
| Material Type | Stainless Steel (ER3xx) |
| TIG Rod Diameter | 0.8 mm, 1 mm, 1.2 mm |
| TIG Rod Weight | 15 kg |
| AWS Classification | ER 312 |
| SKU | Diameter | Stock Status | |
|---|---|---|---|
| 6011100155 | 1 2 mm | In Stock | £200.00 ex VAT £240.00 inc VAT |
| 6011100154 | 1 0 mm | In Stock | £200.00 ex VAT £240.00 inc VAT |
| 6011100153 | 0 8 mm | In Stock | £200.00 ex VAT £240.00 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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