SIF Sifsilcopper No.985 Copper TIG Filler Rods - 1.2 to 3.2mm Dia. (2.5kg, 5kg and 10kg Packs)
- Material: Copper with deoxidizing elements
- Pack Size: 2.5 KG – 10 KG
- Rod Diameter: 1.2 mm – 3.2 mm

Sifsilcopper No 985 Copper TIG Rods are high-quality rods containing a minimum of 98.5% copper, enriched with deoxidizing elements. These rods are specifically designed for TIG welding of deoxidised copper sheet, ensuring smooth and easy flowing deposits. The finished weld is free from copper oxide inclusions, making it ideal for various coppersmith applications.
Features and Benefits
- High Copper Content: Contains a minimum of 98.5% copper, ensuring premium quality.
- Deoxidizing Elements: Enhanced with deoxidizing elements for a clean and oxide-free weld.
- Versatile Welding: Suitable for TIG welding, fabrication, and repairs of copper structures.
- Good Electrical Conductivity: Ideal for machinery construction and conductor manufacturing due to its excellent electrical conductivity.
Typical Applications
- Copper Fabrication: Perfect for TIG welding during the fabrication and repairs of copper pipes, tanks, buzz-bars, and more.
- Coppersmith Applications: Used in a variety of coppersmith tasks.
- Machinery Construction: Due to its good electrical conductivity, it’s often chosen for machinery construction.
- Conductor Manufacturing: Ideal for creating conductors due to its high copper content and electrical conductivity properties.
| Product Type | TIG Rods – Brazing |
| Part Number | RO981201 |
| Weight | 2.5 kg – 10 kg |
| Diameter | 1.2 mm |
| Melting Point (°C) | 1025 |
| Shielding Gas | Pure Argon |
| Current | DC=+ |
| Amps | 60 – 230 |
| U.T.S. N/mm² | 220 |
Welding Positions

| Cu | Balance |
| Sn | 0.8% |
| Si | 0.3% |
| Mn | 0.3% |
| Ultimate Tensile Strength | 225 MPa |
| Yield Stress | 75 MPa |
| Elongation | 30% |
| Impact Value | 75 J (+20°C) |
Material to be Welded
SifSilCopper 985 delivers a viscous weld pool and is typically best used on oxygen-free copper types. A pre-heat may be required on material thicknesses over 50mm (to a maximum of 50°C)
BS: 2901 C7 ISO 24373 Cu 1898 [CuSn1]
| Brand | Weldability Sif |
| Weight | 2.5kg · |
| Diameter | 3.2mm · |
| Material Type | Brazing (ERCu) |
| TIG Rod Diameter | 1.2 mm, 1.6 mm, 2.4 mm, 3.2 mm |
| TIG Rod Weight | 1 kg, 5 kg |
| SKU | Weight | Diameter | Stock Status | |
|---|---|---|---|---|
| RO981210 | 10kg | 1 2mm | In Stock | £271.43 ex VAT £325.72 inc VAT |
| RO981225 | 2 5kg | 1 2mm | Out of Stock | £67.86 ex VAT £81.43 inc VAT |
| RO981610 | 10kg | 1 6mm | In Stock | £266.46 ex VAT £319.75 inc VAT |
| RO981625 | 2 5kg | 1 6mm | Out of Stock | £66.61 ex VAT £79.93 inc VAT |
| RO982410 | 10kg | 2 4mm | Out of Stock | £261.60 ex VAT £313.92 inc VAT |
| RO982425 | 2 5kg | 2 4mm | In Stock | £65.40 ex VAT £78.48 inc VAT |
| RO983225 | 2 5kg | 3 2mm | In Stock | £64.04 ex VAT £76.85 inc VAT |
| RO981250 | 5kg | 1 2mm | In Stock | £135.72 ex VAT £162.86 inc VAT |
| RO981650 | 5kg | 1 6mm | In Stock | £135.72 ex VAT £162.86 inc VAT |
| RO982450 | 5kg | 2 4mm | In Stock | £130.80 ex VAT £156.96 inc VAT |
Product Information
Download PDFTechnical 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.
SIF Sifsilcopper No.985 Copper TIG Filler Rods - 1.2 to 3.2mm Dia. (2.5kg, 5kg and 10kg Packs) 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