Bronzes

NameEquivalents%CuSnPbZnNiSbAlFeMnPSSiAsMgOthers
CB493K
CuSn7Zn4Pb7-B

CB493K
CuSn7Zn4Pb7-B

Semi hard. Resistant to sea water. Drag links, bearings, etc.
ASTM C93200,
DS 5426		min81,06,25,22,3<2,0<0,3<0,01<0,2-<0,03<0,08<0,01---
max84,08,0
8,05,0<2,0<0,3<0,01<0,2-<0,03<0,08<0,01---
CB492K
CuSn7Zn2Pb3-B

CB492K
CuSn7Zn2Pb3-B

Good corrosion resistance with moderate strength and good casting. Applications include valves and bearings.
ASTM C92200,
BS LG4		min85,06,2
2,71,7<2,0<0,25<0,01<0,2-<0,03<0,08<0,01---
max88,58,0
3,5
3,2<2,0<0,25<0,01<0,2-<0,03<0,08<0,01---
CuSn6ZnNi

CuSn6ZnNi

Semi hard and seawater. Valve Parts together...
NS 16532min83,55,8
2,8
1,81,5<0,2<0,01<0,2<0,1-----<0,4
max87,07,0
4,0
3,02,3<0,2<0,01<0,2<0,1-----<0,4
CB491K
CuSn5Zn5Pb5-B

CB491K CuSn5Zn5Pb5-B

Semi-hard, resistant to sea water, brazing weldable. Collectors, bearing friction, etc.
ASTM C83600,
BS LG2, DS 5204		min83,04,2
4,2
4,5<2,0<0,25<0,01<0,25-<0,03<0,08<0,01---
max86,56,0
5,8
6,5<2,0<0,25<0,01<0,25-<0,03<0,08<0,01---
CuSn5Zn5Pb3
(RG-5 low lead)

CuSn5Zn5Pb3
(RG-5 low lead)

Semi-hard, resistant to sea water, brazing weldable. Collectors, bearing friction, etc.
 minREST4,2
2,5
4,5<2,0<0,25<0,01<0,25-<0,03<0,08<0,01---
maxREST6,0
3,0
6,5<2,0<0,25<0,01<0,2-<0,03<0,08<0,01---

Bronze alloys offer a good corrosion resistance with a moderate strength and good casting capability. Typical applications include valves, bearings, gears, pump bodies,…