Chemical composition – copper alloy bars

Chemical composition of drawn round and polygonal (square, hexagonal, flat) copper alloy bars according to EN 12164

In the tables below you can study the chemical composition of drawn round and polygonal (square, hexagonal, flat) copper alloy bars according to EN 12164, the alloy groups and the density.

Table 1 - Composition of low-alloyed copper alloys, EN 12164

Material		Chemical composition, %											Density^a, g/cm3	Electrical conductivity^b
Symbol	Number	Element	Cu	Be	Co	Fe	Ni	p	Pb	s	Te	Others total	approx.	MS/m approx.	% IACS
Symbol	Number	Element	Cu	Be	Co	Fe	Ni	p	Pb	s	Te	Others total		MS/m approx.	approx.
CuBe2Pb	CW102C	min.	Rest	1.8	-	-	-	-	0.2	-	-	-		15	26
CuBe2Pb	CW102C	max.	-	2	0.3	0.2	0.3	-	0.6	-	-	0.5	8.3	15	26
CuPb1P	CW113C	min.	Rest	-	-	-	-	0.003	0.7	-	-	-		50	86
CuPb1P	CW113C	max.	-	-	-	-	-	0.012	1.5	-	-	0.1	8.9	50	86
CuSP	CW114C	min.	Rest	-	-	-	-	0.003	-	0.2	-	-		50	86
CuSP	CW114C	max.	-	-	-	-	-	0.012	-	0.7	-	0.1	8.9	50	86
CuTeP	CW118C	min.	Rest	-	-	-	-	0.003	-	-	0.4	-		50	86
CuTeP	CW118C	max.	-	-	-	-	-	0.012	-	-	0.7	0.1	8.9	50	86
^a For information only
^b Only for metallurgical conditions subjected to a solution heat treatment or precipitation hardening

Table 2 - Composition of copper-nickel-zinc alloys, EN 12164

Material		Chemical composition, %									Density^a g/ cm3
Symbol	Number	Element	Cu	Fe	Mn	Ni	Pb	Sn	Zn	Others total	approx.
CuNi7Zn39Pb3Mn2	CW400J	min.	47	-	1.5	6	2.3	-	Rest	-	8.5
CuNi7Zn39Pb3Mn2	CW400J	max.	50	0.3	3	8	3.3	0.2	-	0.2	8.5
CuNi12Zn30Pb1	CW406J	min.	56	-	-	11	0.5	-	Rest	-	8.6
CuNi12Zn30Pb1	CW406J	max.	58	0.3	0.5	13	1.5	0.2	-	0.2	8.6
CuNi18Zn19Pb1	CW408J	min.	59.5	-	-	17	0.5	-	Rest	-	8.7
CuNi18Zn19Pb1	CW408J	max.	62.5	0.3	0.7	19	1.5	0.2	-	0.2	8.7
^a For information only

Table 3 - Composition of copper-tin alloys, EN 12164

Material		Chemical composition, %										Density^a g/cm3
Symbol	Number	Element	Cu	Fe	Ni	p	Pb	Sn	Te	Zn	Others total	approx.
CuSn4Pb4Zn4	CW456K	min.	Rest	-	-	0.01	3.5	3.5	-	3.5	-	8.9
CuSn4Pb4Zn4	CW456K	max.	-	0.1	0.2	0.4	4.5	4.5	0.2	4.5	0.2	8.9
CuSn5Pb1	CW458K	min.	Rest	-	-	0.01	0.5	3.5	-	-	-	8.8
CuSn5Pb1	CW458K	max.	-	0.1	0.2	0.4	1.5	5.5	-	0.3	0.2	8.8
^a For information only

Table 4 - Composition of copper-zinc alloys, EN 12164

Material		Chemical composition^b, %											Density^a g/cm3
Symbol	Number	Element	Cu	As	Al	Fe	Mn	Ni	Pb	Sn	Zn	Others total	approx.
CuZn40	CW509L	min.	59	-	-	-	-	-	-	-	Rest	-	8.4
CuZn40	CW509L	max.	61.5	-	0.05	0.2	-	0.3	0.2	0.2	-	0.2	8.4
CuZn42	CW510L	min.	57	-	-	-	-	-	-	-	Rest	-	8.4
CuZn42	CW510L	max.	59	-	0.05	0.3	-	0.3	0.2	0.3	-	0.2	8.4
CuZn38As	CW511L	min.	61.5	0.02	-	-	-	-	-	-	Rest	-	8.4
CuZn38As	CW511L	max.	63.5	0.15	0.05	0.1	-	0.3	0.2	0.1	-	0.2	8.4
^a For information only
^b For drinking water applications, restrictions on the chemical composition of some materials listed in this table may apply according to national regulations/laws, for example as specified in the 4 MS Common Composition List

Table 5 - Composition of copper-zinc-lead alloys, EN 12164

Material		Chemical composition, %											Density^a g/cm3
Symbol	Number	Element	Cu	Al	As	Fe	Mn	Ni	Pb	Sn	Zn	Others total	approx.
Group A alloys - These alloys have excellent machinability but very limited cold forming.
CuZn36Pb3	CW603N	min.	60	-	-	-	-	-	2.5	-	Rest	-	8.5
CuZn36Pb3	CW603N	max.	62	0.05	-	0.3	-	0.3	3.5	0.2	-	0.2	8.5
CuZn39Pb3	CW614N	min.	57	-	-	-	-	-	2.5	-	Rest	-	8.4
CuZn39Pb3	CW614N	max.	59	0.05	-	0.3	-	0.3	3.5	0.3	-	0.2	8.4
CuZn40Pb2	CW617N	min.	57	-	-	-	-	-	1.6	-	Rest	-	8.4
CuZn40Pb2	CW617N	max.	59	0.05	-	0.3	-	0.3	2.5	0.3	-	0.2	8.4
Group B alloys - These alloys have good machinability and good cold forming
CuZn37Pb2	CW606N	min.	61	-	-	-	-	-	1.6	-	Rest	-	8.4
CuZn37Pb2	CW606N	max.	62	0.05	-	0.2	-	0.3	2.5	0.2	-	0.2	8.4
CuZn38Pb2	CW608N	min.	60	-	-	-	-	-	1.6	-	Rest	-	8.4
CuZn38Pb2	CW608N	max.	61	0.05	-	0.2	-	0.3	2.5	0.2	-	0.2	8.4
CuZn39Pb2	CW612N	min.	59	-	-	-	-	-	1.6	-	Rest	-	8.4
CuZn39Pb2	CW612N	max.	60	0.05	-	0.3	-	0.3	2.5	0.3	-	0.2	8.4
Group C alloys - These alloys have good machinability and good to very good cold forming
CuZn35Pb1	CW600N	min.	62.5	-	-	-	-	-	0.8	-	Rest	-	8.5
CuZn35Pb1	CW600N	max.	64	0.05	-	0.1	-	0.3	1.6	0.1	-	0.1	8.5
CuZn35Pb2	CW601N	min.	62	-	-	-	-	-	1.6	-	Rest	-	8.5
CuZn35Pb2	CW601N	max.	63.5	0.05	-	0.1	-	0.3	2.5	0.1	-	0.1	8.5
CuZn37Pb1	CW605N	min.	61	-	-	-	-	-	0.8	-	Rest	-	8.5
CuZn37Pb1	CW605N	max.	62.5	0.05	-	0.3	-	0.3	1.6	0.3	-	0.2	8.5
CuZn38Pbl	CW607N	min.	60	-	-	-	-	-	0.8	-	Rest	-	8.4
CuZn38Pbl	CW607N	max.	61	0.05	-	0.2	-	0.3	1.6	0.2	-	0.2	8.4
CuZn39Pb0,5	CW610N	min.	59	-	-	-	-	-	0.2	-	Rest	-	8.4
CuZn39Pb0,5	CW610N	max.	60.5	0.05	-	0.2	-	0.3	0.8	0.2	-	0.2	8.4
CuZn39Pb1	CW611N	min.	59	-	- .	-	-	-	0.8	-	Rest	-	8.4
CuZn39Pb1	CW611N	max.	60	0.05	-	0.3	-	0.3	1.6	0.3	-	0.2	8.4
Group D alloys - These alloys are dezincification-resistant, with good machinability and cold forming
CuZn36Pb2As	CW602N	min.	61	-	0.02	-	-	-	1.7	-	Rest	-	8.4
CuZn36Pb2As	CW602N	max.	63	0.05	0.15	0.1	0.1	0.3	2.8	0.1	-	0.2	8.4
CuZn35Pb1,5AlAs	CW625N	min.	62	0.5	0.02	-	-	-	1.2	-	Rest	-	8.4
CuZn35Pb1,5AlAs	CW625N	max.	64	0.7	0.15	0.3	0.1	0.2	1.6	0.3	-	0.2	8.4
CuZn33Pb1,5AlAs	CW626N	min.	64	0.8	0.02	-	-	-	1.2	-	Rest	-	8.4
CuZn33Pb1,5AlAs	CW626N	max.	66	1	0.15	0.3	0.1	0.2	1.7	0.3	-	0.2	8.4
For information only
^b For drinking water applications, restrictions on the chemical composition of some materials listed in this table may apply according to national regulations/laws, for example as specified in the 4 MS Common Composition List

Table 6 - Composition of complex copper-zinc alloys, EN 12164

Material		Chemical composition^b, %													Density^a, g/ cm3
Symbol	Number	Element	Cu	Al	As	Fe	Mn	Ni	P	Pb	Si	Sn	Zn	Others total	approx.
CuZn32Pb2AsFeSi	CW709R	min.	64	-	0.03	0.1	-	-	-	1.5	0.45	-	Rest	-	8.4
CuZn32Pb2AsFeSi	CW709R	max.	66.5	0.05	0.08	0.2	-	0.3	-	2.2	0.8	0.3	-	0.2	8.4
CuZn37Mn3Al2PbSi	CW713R	min.	57	1.3	-	-	1.5	-	-	0.2	0.3	-	Rest	-
CuZn37Mn3Al2PbSi	CW713R	max.	59	2.3	-	1	3	1	-	0.8	1.3	0.4	-	0.3	8.1
CuZn40Mn1Pb1	CW720R	min.	57	-	-	-	0.5	-	-	1	-	-	Rest	-
CuZn40Mn1Pb1	CW720R	max.	59	0.2	-	0.3	1.5	0.6	-	2	0.1	0.3	-	0.3	8.3
CuZn40Mn1PblAIFeSn	CW721R	min.	57	0.3	-	0.2	0.8	-	-	0.8	-	0.2	Rest	-
CuZn40Mn1PblAIFeSn	CW721R	max.	59	1.3	-	1.2	1.8	0.3	-	1.6	-	1	-	0.3	8.3
CuZn40Mn1Pb1FeSn	CW722R	min.	56.5	-	-	0.2	0.8	-	-	0.8	-	0.2	Rest	-
CuZn40Mn1Pb1FeSn	CW722R	max.	58.5	0.1	-	1.2	1.8	0.3	-	1.6	-	1	-	0.3	8.3
CuZn21Si3P	CW724R	min.	75	-	-	-	-	-	0.02	-	2.7	-	Rest	-
CuZn21Si3P	CW724R	max.	77	0.05	-	0.3	0.05	0.2	0.1	0.1	3.5	0.3	-	0.2	8.3
CuZn33PblAISiAs	CW725R	min.	64	0.1	0.05	-	-	-	-	0.4	0.1	-	Rest	-
CuZn33PblAISiAs	CW725R	max.	67	0.4	0.08	0.3	0.1	0.2	0.02	0.9	0.3	0.3	-	0.2	8.5
For information only
^b For drinking water applications, restrictions on the chemical composition of some materials listed in this table may apply according to national regulations/laws, for example as specified in the 4 MS Common Composition List