- Description
SIF Phosphor bronze no 8 contains 7% tin and is suitable for fusion welding of phosphor bronze castings and copper alloys (brass),It is also used for TIG brazing on ferrous and dissimilar metals. Sold in 1kg packets.
SIF No. 8 brazing rods are copper-phosphorus filler metals specifically formulated for the brazing of copper and copper-alloy components in refrigeration, air conditioning, plumbing, and general engineering applications. The alloy offers excellent fluidity and capillary penetration, producing strong, sound joints with high resistance to vibration and thermal cycling.
Due to their phosphorus content, SIF No. 8 rods are self-fluxing when used on copper-to-copper joints, eliminating the need for separate flux in many applications. This improves productivity while ensuring clean, high-integrity brazed connections. For brazing brass, bronze, or other copper alloys, a suitable flux should be used.
The alloy provides good mechanical strength, corrosion resistance, and thermal conductivity, making it ideal for pipework, heat exchangers, condensers, evaporators, and copper tubing assemblies operating under pressure.
Technical Features:
- Copper-phosphorus brazing alloy
- Self-fluxing on copper-to-copper joints
- Excellent wetting and capillary flow characteristics
- Strong, leak-tight joints with high reliability
- Good resistance to corrosion and thermal fatigue
- Suitable for refrigeration and HVAC installations
- Ideal for copper pipework, fittings, and heat transfer equipment
- Consistent melting characteristics for controlled brazing performance
Sifphosphor No 8 Data
Composition:93% Cu,7% Sn
Conforms to:BS2901 C11,Din CuSn6
Ideal for use with copper alloy are used especially if the joint is of dissimilar metals,in other words if you are not sure of the metal,then it could probably be brazed with this rod.