Details

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Lead Brass is a copper-zinc alloy that contains a small percentage of lead, typically ranging from 1% to 4%, to improve machinability without significantly affecting corrosion resistance or strength. This alloy is widely known for its excellent free-cutting properties, making it ideal for high-speed machining and precision components.

The lead content acts as a lubricant, reducing tool wear and improving chip breaking, which makes it especially suitable for automatic lathes and CNC machining.

 

Alloy Grade	Cu	Pb	Al	Fe (max)	Sn	Zn	Impurity Total
HPb63-3	62.0-65.0	2.4-3.0	-	0.1	-	REM	0.75
HPb63-0.1	61.5-63.5	0.05-0.3	-	0.15	-	REM	0.5
HPb62-2	60.0-63.0	1.5-2.5	-	0.15	-	REM	0.65
HPb60-3	58.0-61.0	2.5-3.5	-	0.3	0.3	REM	0.8
HPb59-1	57.0-60.0	0.8-1.9	-	0.5	-	REM	1.0
HPb58-3	57.0-59.0	2.5-3.5	-	0.5	0.5	REM	1.0
HPb57-4	56.0-58.0	3.5-4.5	-	0.5	0.5	REM	1.2
C3601	59.0-63.0	1.8-3.7	-	0.3	Fe+Sn:0.5	REM	-
C3602	59.0-63.0	1.8-3.7	-	0.5	Fe+Sn:1.0	REM	-
C3603	57.0-61.0	1.8-3.7	-	0.35	Fe+Sn:0.6	REM	-
C3604	57.0-61.0	1.8-3.7	-	0.5	Fe+Sn:1.0	REM	-
C3605	56.0-60.0	3.5-4.5	-	0.5	Fe+Sn:1.0	REM	-
CW602N	61.0-63.0	1.7-2.8	0.05	0.1	0.1	REM	Ni 0.3 others total 0.2
CW614N	57.0-59.0	2.5-3.5	0.05	0.3	0.3	REM	Ni 0.3 others total 0.2
CW617N	57.0-59.0	1.6-2.5	0.05	0.3	0.3	REM	Ni 0.3 others total 0.2
C36000	60.0-63.0	2.5-3.0	-	0.35	-	REM	-
C36010	60.0-63.0	3.1-3.7	-	0.35	-	REM	-

 

Usage: Used in spare parts with hot-drawability and cutting manufacturing technique, such as bolts, shims, screw caps, gaskets, linings, etc.
The main characteristics: With excellent machinability, good performance in cutting, good corrosion resistance, and with good processing in cold & hot working, easy to join and braze.