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When brazing with silver-copper-phosphorus alloys, rapid heating is recommended. The joint may appear bright gray but can be restored to a copper color after acid pickling in a 10% sulfuric acid solution.
| Product Number | Related Standard | Chemical Composition(%) | Total Impurities | Melting Range(℃) | Characteristic | Application | |||||
| Ag | Cu | P | Sn | Other | Solidus (°F/°C) | Liquidus (°F/°C) | |||||
| SAgP-1 | JIS：CopSilos – 1 | 0.9-1.1 | rem. | 6.8-7.2 | ≤0.15 | 1189/643 | 1464/796 | The solidus temperature is lower than that of copper-phosphorus (Cu-P) brazing alloys, with improved wettability, as well as enhanced strength and toughness. | Suitable for brazing copper and copper alloy components. | ||
| SAgP-2A | 1.8-2.2 | rem. | 7.2-7.4 | 1193/645 | 1405/763 | Low melting point and good flowability. | Suitable for small-gap joints. | ||||
| SAgP-2 | GB/T： BCu91PAg AWS： BCuP-6 | 1.8-2.2 | rem. | 6.8-7.2 | 1193/645 | 1454/790 | Good flowability and ductility with high joint strength. | Suitable for medium-gap joints. | |||
| SAgP-2B | BS： CP2 | 1.8-2.2 | rem. | 6.6-6.8 | 1193/645 | 1500/816 | Relatively high melting point with deENt flowability. | Suitable for large-gap joints. | |||
| SAgP-3 | 2.8-3.2 | rem. | 6.5-6.8 | 1193/645 | 1472/800 | Due to its low phosphorus (P) content, the liquidus temperature is relatively high. | Suitable for brazing copper and copper alloy components, ideal for large-gap joints. | ||||
| SAgP-5 | GB/T：BCu88PAg JIS：TC-315 AWS：BCuP-7 | 4.6-5.2 | rem. | 6.8-7.1 | 1193/645 | 1409/765 | Strength increases with the addition of silver (Ag). | Suitable for brazing copper-to-copper and copper-to-brass joints in air conditioners and refrigerators with vibrations, as well as copper-to-copper and copper-to-copper alloy joints in motors and instruments. Low phosphorus (P) content is ideal for large-gap joints, while high phosphorus content is suitable for small-gap joints. | |||
| SAgP-5A | GB/T： BCu89PAg AWS： BCuP-3 | 4.8-5.2 | rem. | 5.8-6.7 | 1189/643 | 1445/785 | |||||
| SAgP-5B | 4.5-5.5 | rem. | 5.5-5.7 | 1193/645 | 1535/835 | ||||||
| SAgP-6 | GB/T： BCu87PAg AWS： BCuP-4 | 5.8-6.2 | rem. | 6.8-7.5 | 1193/645 | 1335/724 | Possesses excellent flowability and brazing performance, and can replace SBAg15-P (Material 204). | High phosphorus (P) content is suitable for smaller-gap weld seams and is commonly used for brazing in eyeglass frames. When processed into flat wire, it is ideal for resistance welding. Low phosphorus (P) content is suitable for larger-gap brazed seams. | |||
| SAgP-6A | 5.8-6.2 | rem. | 6.5-6.7 | 1193/645 | 1317/714 | ||||||
| SAgP-6B | 5.8-6.2 | rem. | 6.1-6.3 | 1193/645 | 1456/791 | ||||||
| SAgp-10 | GB/T：BCu84PAg | 9-11 | rem. | 5.5-6.5 | 1193/645 | 1454/790 | Good flowability with excellent brazing alloy toughness. | Can be processed into flat wire for brazing copper and copper alloy eyeglass frames. | |||
| SAgP-15A | 14.5-15.5 | rem. | 7.1-7.4 | 1193/645 | 1205/652 | Suitable for small-gap joints and brazing copper-to-copper connections in motors. | |||||
| SAgP-15 | GB/T：BCu80AgP AWS：BCuP-5 | 14.5-15.5 | rem. | 4.8-5.3 | 1193/645 | 1472/800 | Good flowability with excellent brazing process performance. | Suitable for brazing medium-gap joints of copper and copper alloys in air conditioners, refrigerators, compressors, and motors. | |||
| SAgP-18 | 17.5-18.5 | rem. | 6.2-6.5 | 1193/645 | 1193/645 | Eutectic brazing alloy with good flowability but poor ductility. | Suitable for brazing copper and copper alloy joints in electrical and motor equipment. | ||||
| SAgP-20 | JIS：CopSil20 | 19.5-20.5 | rem. | 4.5-5.5 | 1193/645 | 1364/740 | Low temperature with good flowability. | Suitable for brazing copper and copper alloys in motors and eyeglass frames; can be made into various specifications of flat wire. | |||
| SAgP-25 | GOST ：Ncp25 | 24.5-25.5 | rem. | 4.8-5.3 | 1193/645 | 1310/710 | |||||
