Phosphate-Copper Filler Metal is a one to decrease
the melting point by adding phosphate to copper and
having Self Fluxing effect for copper basic material.
It is possible to improve the processing and dispersing
capacity, to decrease the melting point, and promote
the flexibility by adding Ag and Sn to Copper-Phosphate
alloy. So this Phosphate-Copper Filler Metal has good
mechanical strength and corrosion resistance that it is
widely used in copper and copper alloy of vessels and
heat exchanger.

Alloy	Composition(%)					Remark(℃)
Alloy	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