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Phosphor-Copper brazing alloy is easy-flow, low-cost and has good processing property and self-braze ability. It applies to contact brazing、gas flame brazing, induction brazing and furnace brazing, the joint has high tensile strength and good electrical conductivity. Silver-Phosphor-Copper brazing alloy can reduce the melting points, in can improve both alloy's plasticity and wet ability, as well as the alloy's strength and toughness.
中国标准牌号 Chinese Standard |
相当牌号 Equivalent Grade |
化学成分(Wt%) Composition |
熔化温度范围(℃) Melting Range |
主要特性及用途 Characteristics and Application |
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产品样本牌号 | AWS A5.8 | Ag | P | Cu | Sn | Ni | 固相线 Solidus |
液相线 Liquidus |
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B-Cu92P | ___ | ___ | ___ | 7.5 ~ 8.5 |
余 rem. | ___ | ___ | 714 | 750 | 熔点低,流动性较好,但脆性大,一般用于钎焊不受冲击载荷、无振动的铜和黄铜零件。 |
B-Cu93P | 料201 | BCuP-2 | ___ | 6.8 ~ 7.5 |
余 rem. | ___ | ___ | 714 | 793 | 流动性好,可以流入间隙很小的接头,钎料脆,用于机电和仪表工业,钎焊不受冲击载荷的铜和黄铜零件 。 |
B-Cu89SnP | 料208 | ___ | ___ | 5.5 ~ 7.5 |
余 rem. | 5.0 ~ 6.0 |
___ | 620 | 660 | 熔点低,流动性好,配合银钎剂钎焊铜、青铜及低锌黄铜 |
B-Cu86SnP | ___ | ___ | ___ | 4.8 ~ 5.8 |
余 rem. | 7.0 ~ 8.0 |
0.4 ~ 1.2 |
620 | 670 | 用途同上,镍的加入使脆性增大,但流动性提高,钎缝光亮。 |
B-Cu91PAg | 料209 | BCuP-6 | 1.8 ~ 2.2 |
6.8 ~ 7.2 |
余 rem. | ___ | ___ | 645 | 788 | 能在较大温度范围内填充接头间隙,用于电冰箱、空调器、电机和仪表行业钎焊铜及黄铜。 |
B-Cu89PAg | ___ | BCuP-3 | 4.8 ~ 5.2 |
5.8 ~ 6.7 |
余 rem. | ___ | ___ | 645 | 780 | 用途同上,钎料延性和导电性得到提高,流动性一般,适宜于钎焊间隙较大的零件。 |
B-Cu88PAg | 料205 | BCuP-7 | 4.8 ~ 5.2 |
6.5 ~ 7.0 |
余 rem. | ___ | ___ | 645 | 771 | 用途同上,钎料延性和导电性得到提高,流动性好于B-Cu89PAg。 |
B-Cu87PAg | ___ | BCuP-4 | 5.8 ~ 6.2 |
7.0 ~ 7.5 |
余 rem. | ___ | ___ | 645 | 718 | 熔点低,流动性很好,能钎焊间隙较小的接头,用于铜及黄铜钎焊。 |
B-Cu80AgP | 料204 | BCuP-5 | 14.5 ~ 15.5 |
4.8 ~ 5.3 |
余 rem. | ___ | ___ | 645 | 815 | 钎料的延性和导电性得到进一步的改善,用于钎焊要求比HL205钎料高的接头间隙较大的铜及黄铜零件。 |