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铟铜合金是在铜里添加铟，使熔点降低及对铜母材有 SELF
Fluxing 效果。铜-铟2元合金里添加 Ag,Sn 等，可以改善
加工性和扩散性，并且使熔点 降低，提高流动性。
这样的铟铜合金机械性强度提高，耐蚀性好，在船只 ，
热交换机等铜及铜合金上广泛使用。 |
| Alloy |
Composition(%) |
Remark(℃) |
| P |
Ag |
Cu |
Zn |
Other |
Solidus |
Liquidus |
| BCuP1 |
4.8-5.3 |
- |
Rem |
|
0.2Max |
710 |
925 |
| BCuP2 |
6.8-7.5 |
- |
Rem |
|
0.2Max |
710 |
795 |
| BCuP-3S |
6.3-6.7 |
2.8-3.2 |
Rem |
|
0.2Max |
645 |
795 |
| BCuP3 |
5.8-6.7 |
4.8-5.2 |
Rem |
|
0.2Max |
645 |
815 |
| BCuP4 |
6.8-7.7 |
5.8-6.2 |
Rem |
|
0.2Max |
645 |
720 |
| BCuP5 |
4.8-5.3 |
14.5-15.5 |
Rem |
|
0.2Max |
645 |
800 |
| BCuP6 |
6.8-7.2 |
1.8-2.2 |
Rem |
|
0.2Max |
645 |
790 |
| SB1 |
5.8-6.8 |
1.3-1.7 |
Rem |
|
0.2Max |
640 |
760 |
| SB2 |
6.0-7.0 |
1.8-2.2 |
Rem |
|
0.2Max |
644 |
740 |
| SB3 |
5.8-6.2 |
0.8-2.2 |
Rem |
|
0.2Max |
644 |
813 |
| SB5 |
5.8-6.2 |
1.8-2.2 |
Rem |
4.5-5.5 |
0.2Max |
630 |
675 |
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