Tin Bronze (Phosphorus Bronze) filler metal is a copper-tin alloy. It is used to weld bronze, brass and copper. Phosphor Bronze A is frequently used to repair castings and join copper-tin alloys of similar chemical composition.
| Standard | Alloy | Chemical Composition(%) | Solidus | Liquidus | Application |
| AWS A5.7 BS EN14640 | ERCuSn-A CuSn6P | Cu:Balance Fe:/ P:0.10-0.35 Si:/ Sn:4.0-6.0 Zn:/ Pb:≤0.02 Other:≤0.5 | 910℃ | 1040℃ | Good resistance against corrosion and overheating. Ideal for overlay welding on steel, casting repair. |
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AWS A5.7 BS EN14640 |
ERCuSn-C CuSn9P | Cu:Balance Fe:/ P:0.10-0.35 Si:/ Sn:6.0-7.5 Zn:≤0.2 Pb:≤0.02 Other:≤0.5 | 875℃ | 1025℃ | Recommended for the joining welding of copper with Cu-Sn alloy.Best for the butt joining welding of brass with steel. Ideal for overlaying and building up bearing surfaces, bushes, impellor blades and valve seats etc. |
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AWS A5.7 BS EN14640 |
CuSn10 | Cu:Balance Fe:/ Mn:0.2-0.35 Si:0.2-0.3 Sn:9.0-10.0 Zn:≤0.05 Pb:≤0.02 Other:≤0.5 | 887℃ | 1020℃ | Suitable for the welding of copper with Cu-Sn alloy, especially for the Cu-Zn alloy with steel. Widely be used in repairing cast copper productd.Pre-heat suggested for large size products, and pulsed arc welding is recommend for multilayer on steel. |
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