2.4mm SIFCUPRON CP2 Copper Phosphorus Alloy Filler Rod 1.0kg

The correct SIFBRONZE alloy depends on the parent materials, the joint design, the required strength and the service conditions. Selecting the correct alloy ensures the joint delivers the required performance and reliability.

Start by identifying the metals you're joining, then consider the required joint strength, operating temperature, corrosion resistance and whether you're joining similar or dissimilar metals. These factors will help determine the most suitable SIFBRONZE alloy.

Different SIFBRONZE alloys have been developed for different applications. Some provide excellent capillary flow for general fabrication, while others offer higher strength, improved wear resistance or greater compatibility with specific parent materials.

Yes. Many SIFBRONZE alloys are specifically designed to join different metals that may be difficult or impractical to weld. Selecting the correct alloy helps achieve strong, reliable joints while minimising distortion.

Most SIFBRONZE alloy brazing rods require a suitable brazing flux to remove surface oxides and allow the alloy to flow correctly through the joint. Always use the flux recommended for the filler alloy and parent materials.

The SIFBRONZE range has evolved over many decades, with product numbering updated as international standards, alloy classifications and market requirements changed. Many of the original product numbers have modern equivalents, and Weldability can help identify the current replacement.

Many historical SIFBRONZE alloys have direct or recommended modern equivalents. If you're working from an old drawing, procedure or product specification, our technical team can help identify the most appropriate current product.

Some original SIFBRONZE products are still available, while others have been superseded by modern alloys that meet current British, European or AWS standards. Where a product has changed, a suitable replacement can normally be recommended.

SIFBRONZE has been one of the UK's best-known brazing brands for generations, trusted by engineers, fabricators and distributors across a wide range of industries. The brand has built its reputation on quality, technical support and a comprehensive range of brazing filler metals.

Weldability continues to support many historical SIFBRONZE products through technical information, archived literature and guidance on modern equivalents. Whether you're maintaining legacy equipment or interpreting older specifications, we can help identify the correct replacement.