Weld Star CF2 Copper-Free MIG Wire - Mild Steel 0.8mm Dia. - 15kg Spool (G3Si1)
- Non-copper coated solid MIG wire for unalloyed and low-alloyed carbon-manganese steels
- 0.8mm diameter, 15kg spool with vacuum-sealed, precision layer wound construction
- Welding current 60–200A, voltage 18–24V; shielding gas C1 (CO₂) or M21 (Ar + CO₂)
- Tensile strength 540 MPa (C1) / 580 MPa (M21); impact strength 70 J @ -30°C (C1) / 90 J @ -40°C (M21)
- Suitable for all welding positions (PA, PB, PC, PD, PE, PF, PG)
Environmentally friendly, non-copper coated MIG wire delivering stable arcs, minimal spatter, and consistent high-quality welds for structural and general fabrication.
Weld Star CF2 is a copper-free solid MIG wire designed for welding unalloyed and low-alloyed carbon-manganese steels. Its non-copper coated finish makes it more environmentally friendly, reducing fume and smoke compared to traditional copper-coated wires.
With a stable arc and excellent performance at increased welding speeds, it produces clean, high-quality welds with minimal spatter. The wire is vacuum-sealed to prevent moisture absorption and precision layer wound to ensure smooth and reliable feeding during welding.
Manufactured using virgin raw materials from specialised steel mills, Weld Star CF2 provides consistent quality and reliability across a wide range of fabrication environments.
Typical Applications
- Industrial machinery
- Construction
- Transportation (shipbuilding, automotive, rail)
- Boilers and pressure vessels
- General fabrication
| Wire Type | Non-Copper Coated Solid MIG Wire |
| Wire Classification | EN ISO 14341-A G 42 3 C1 / G 42 4 M21 3Si1 | AWS A5.18 ER70S-6 |
| Diameter | 0.8mm |
| Spool Size | 15kg |
| Shielding Gas | C1 (CO₂) / M21 (Ar + CO₂ mix) |
| Current Type | DC+ |
| Welding Parameters (0.8mm) | Current: 60–200A | Voltage: 18–24V |
| Welding Positions | PA, PB, PC, PD, PE, PF, PG |
| Tensile Strength | 540 MPa (C1) / 580 MPa (M21) |
| Yield Strength | 440 MPa (C1) / 460 MPa (M21) |
| Elongation | 30% (C1) / 26% (M21) |
| Impact Strength | 70 J @ -30°C (C1) / 90 J @ -40°C (M21) |
| Carbon (C) | 0.07% |
| Silicon (Si) | 0.85% |
| Manganese (Mn) | 1.45% |
| Phosphorus (P) | <0.025% |
| Sulphur (S) | <0.025% |
| Copper (Cu) | 0.010% |
| Chromium (Cr) | <0.15% |
| Nickel (Ni) | <0.15% |
| Molybdenum (Mo) | <0.15% |
| Aluminium (Al) | <0.020% |
| Vanadium (V) | <0.030% |
| Zirconium + Titanium (Zr+Ti) | <0.15% |
| Spool Size | Standard (12.5-25kg) |
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 CF2 Copper-Free MIG Wire - Mild Steel 0.8mm Dia. - 15kg Spool (G3Si1) 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
Customers Also Purchased
-
-
Weld Star HF 600-G Hardfacing MIG Wire - Dual Core 1.2mm Dia. - 15kg Spool
SKU: 6011100264
£182.67Add to Basket -
-
-
Weld Star SG2 Mild Steel MIG Wire - ER70S-6 - 5kg Reel (0.6, 0.8, 1.0mm Dia.)
SKU: 3010200605
£17.08Add to Basket -
Weld Star Alloy 625 Nickel MIG Wire - 15kg Reel (ER NiCrMo-3) - 1.0 & 1.2mm Dia.
SKU: 6031100099
£773.33Add to Basket
Shop by Category
-
Offers & Deals
View Products -
Welding Equipment, Machines & Tools
View Products -
Welding Consumables, Supplies & Accessories
View Products -
Gas Delivery & Control
View Products -
Gas & Plasma Cutting Machines
View Products -
Welding Fume Extractors & Systems
View Products -
Pipe Welding Tools & Equipment
View Products -
Welding Tools & Benches
View Products -
Safety Equipment
View Products -
Air Tools & Compressors
View Products -
Metal Saws & Magnetic Drills
View Products
Reviews
There are no reviews yet