SIF A15 Mild Steel TIG Filler Rods - ER 70S-2 - 1.0-3.2mm Dia. - 2.5kg & 5kg Packs
- Material: Triple De-oxidised Mild Steel with Copper Coating
- Pack Size: 2.5 KG – 5 KG
- Rod Diameter: 1.0 mm – 3.2 mm
- AWS Code: ER 70S-2
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TIG Rod Finder

A15 Steel TIG Rods are copper-coated and triple deoxidised mild steel rods. Designed specifically for the TIG welding process, these rods enable the creation of sound, porosity-free welds on mild and low-alloy steels.
They are particularly effective for single-pass welding on steels and can handle surfaces that haven’t been cleaned prior to welding. These rods also perform exceptionally well on rusty and mill-scaled plates.
Features and Benefits
- Copper Coated: Ensures smooth welding and reduces the risk of weld contamination.
- Triple De-oxidised: Minimizes porosity in the weld, ensuring a clean and strong bond.
- Versatile Welding: Suitable for welding on mild and medium tensile steels, even if they’re rusty or mill-scaled.
- Applications: Ideal for pipe welding, root runs on heavy vessels, and more.
Typical Applications
- Pipe Welding: Suitable for welding pipes, ensuring a strong and durable bond.
- Heavy Vessels: Ideal for root runs on heavy vessels, ensuring the integrity of the vessel.
- General Constructions: Can handle surfaces not cleaned before welding, making it versatile for various construction needs.
Welding Positions

| Part Number | RA151050 |
| Weight | 2.5 kg – 5 kg |
| Diameter | 1.0 mm – 3.2 mm |
| Current | DCEN =- |
| C | 0.1% |
| Si | 0.6% |
| Mn | 1.3% |
| Al | 0.2% |
| Melting Point | 1450°C |
| Ultimate Tensile Strength | 440 N/mm² |
| Hardness | 120 |
BS: 2901 A15. AWS ER70S-2
| Brand | Weldability Sif |
| Weight | 2.5kg · |
| Diameter | 2.4mm · |
| AWS Classification | ER 70S-2 |
| Material Type | Mild Steel (ER70S) |
| TIG Rod Diameter | 1 mm, 1.2 mm, 1.6 mm, 2.4 mm, 3.2 mm |
| TIG Rod Weight | 2.5 kg, 5 kg |
| SKU | Weight | Diameter | Stock Status | |
|---|---|---|---|---|
| RA151025 | 2 5kg | 1 0mm | In Stock | £27.14 ex VAT £32.57 inc VAT |
| RA151225 | 2 5kg | 1 2mm | In Stock | £30.51 ex VAT £36.61 inc VAT |
| RA152425 | 2 5kg | 2 4mm | In Stock | £21.36 ex VAT £25.63 inc VAT |
| RA151650 | 5kg | 1 6mm | In Stock | £40.92 ex VAT £49.10 inc VAT |
| RA151050 | 5kg | 1 0mm | In Stock | £56.47 ex VAT £67.76 inc VAT |
| RA151250 | 5kg | 1 2mm | In Stock | £56.47 ex VAT £67.76 inc VAT |
| RA151625 | 2 5kg | 1 6mm | In Stock | £22.83 ex VAT £27.40 inc VAT |
| RA152450 | 5kg | 2 4mm | In Stock | £40.92 ex VAT £49.10 inc VAT |
| RA153250 | 5kg | 3 2mm | In Stock | £38.00 ex VAT £45.60 inc VAT |
Product Information
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.
SIF A15 Mild Steel TIG Filler Rods - ER 70S-2 - 1.0-3.2mm Dia. - 2.5kg & 5kg Packs Get in touch
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