Weld Star ER 309LSi Stainless MIG Wire 15kg Multiple Diameters Available
Price Promise

Found it cheaper? We will match it.
Price Match is available on products showing this message, including this Weld Star one. Send us the competitor's link and your delivery postcode, and we will confirm the matched price before you order.
- 1Send us the competitor's link
- 2Add your delivery postcode
- 3We confirm the price before you order
Identical new products from established UK retailers, total price including VAT and delivery, UK mainland only. Read the full terms
- ER 309LSi low-carbon stainless MIG wire with added silicon
- Improved wetting, weld pool fluidity and bead profile
- Resists intergranular corrosion without stabilisers
- Available in multiple diameters on 15kg spools

Weld Star ER 309LSi is a low-carbon austenitic stainless steel MIG wire with increased silicon content for smooth, fluid weld deposits. The low carbon level reduces intergranular carbide precipitation and increases resistance to intergranular corrosion without the use of stabilisers such as niobium or titanium. Supplied on 15kg spools and available in multiple diameters.
Features
- Low carbon content prevents intergranular carbide precipitation
- Excellent intergranular corrosion resistance with no stabilisers required
- Increased silicon content promotes weld pool fluidity and a smooth deposit appearance
- High temperature oxidation and corrosion resistance up to 300C
- Available in multiple diameters
| Specification | Details |
|---|---|
| Brand | Weld Star |
| Process | MIG |
| Grade | ER 309LSi |
| 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 309LSi |
| SKU | Diameter | Stock Status | |
|---|---|---|---|
| 6011100239 | 1 2 mm | In Stock | £126.67 ex VAT £152.00 inc VAT |
| 6011100238 | 1 0 mm | In Stock | £126.67 ex VAT £152.00 inc VAT |
| 6011100237 | 0 8 mm | In Stock | £126.67 ex VAT £152.00 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.
Weld Star ER 309LSi Stainless MIG Wire 15kg Multiple Diameters Available Get in touch
Have a question about this product? Our team of welding experts are here to help.
Visit Us
12 Mary Seacole Road
The Millfields
Plymouth, Devon
PL1 3JY














Reviews
There are no reviews yet