Chemical composition of round seamless copper tubes for general purposes, EN 12449

Chemical composition of copper

Material		Chemical composition, %
Symbol	Number	Element	Cu	Ag	Bi	0	P	Pb	Other elements (see NOTE)
Symbol	Number	Element	Cu	Ag	Bi	0	P	Pb	total	except
Cu-ETP	CW004A	min.	99,90 ^a	—	—	—	—	—	—	Ag.O
Cu-ETP	CW004A	max.	—	—	0,000 5	0,040 ^b	—	0,005	0,03	Ag.O
Cu-FRHC	CW005A	min.	99,90 ^a	—	—	—	—	—	—	Ag. O
Cu-FRHC	CW005A	max.	—	—	—	0,040 ^b	—	—	0,06^d	Ag. O
Cu-OF	CW008A	min.	99,95 ^a	—	—	—	—	—	—	Ag
Cu-OF	CW008A	max.	—	—	0,000 5	— ^c	—	0,005	0,03	Ag
Cu-PHC	CW020A	min.	99,95 ^a	—	—	—	0,001	—	—	Ag, P
Cu-PHC	CW020A	max.	—	—	0,000 5	— ^c	0,006	0,005	0,03	Ag, P
Cu-HCP	CW021A	min.	99.95 ^a			—	0.002			Ag. P
Cu-HCP	CW021A	max.	—	—	0,000 5	— ^c	0,007	0,005	0,03	Ag. P
	Note: the sum of the other elements (other than copper) is defined as the sum of the contents of Ag, As, Bi, Cd, Co, Cr, Fe, Mn, Ni, O, P, Pb, S, Sb, Se, Si, Sn, Te and Zn, excluding the individually specified elements.
	^a Including silver up to a maximum of 0.015 %. ^b An oxygen content of up to 0.060 % is permitted, subject to agreement between the buyer and the supplier. ^c The oxygen content shall be such that the material complies with the hydrogen embrittlement requirements of EN 1976. ^dA higher total impurity content is permitted, subject to agreement between the buyer and the supplier. ^e For information only. ^fA higher total impurity content is permitted, subject to agreement between the buyer and the supplier.

Composition of low-alloyed copper alloys

Material		Chemical composition, %													Density g/cm3
Symbol	Number	Element	Cu	Al	As	Fe	Mn	Ni	P	Pb	Si	Sn	Zn	Others total
Symbol	Number	Element	Cu	Al	As	Fe	Mn	Ni	P	Pb	Si	Sn	Zn	Others total	approx.
CuFe2P	CW107C	min.	Rest	-	-	2.1	-	-	0.015	-	-	-	0.05	-	8.8
CuFe2P	CW107C	max.	-	-	-	2.6	-	-	0.15	0.03	-	-	0.2	0.2	8.8
CuNi2Si	CW111C	min.	Rest	-	-	-	-	1.6	-	-	0.4	-	-	-	8.8
CuNi2Si	CW111C	max.	-	-	-	0.2	0.1	2.5	-	0.02	0.8	-	-	0.3	8.8
CuSi3Zn2P	CW124C	min.	Rest	-	-	-	-	-	0.01	-	2.5	-	1.00	-	8.6
CuSi3Zn2P	CW124C	max.	-	-	-	-	0.2	0.2	0.2	0.1	3.5	-	3.00	0.2	8.6
CuFe0,1Sn0,1P	CW125C	min.	Rest	-	-	0.05	-	-	0.015	-	-	0.05	-	-	8.6
CuFe0,1Sn0,1P	CW125C	max.	-	-	-	0.2	-	-	0.055	-	-	0.25	-	0.2	8.6
	^aFor information only.

Composition of copper-nickel alloys

Material		Chemical composition, %													Density^a, g/ cm3
Symbol	Number	Element	Cu	C	Co	Fe	Mn	Ni	P	Pb	S	Sn	Zn	Others total	approx.
CuNi10Fe1Mn	CW352H	min.	Rest	—	—	1.0	0.5	9.0	—	—	—	—	—	—
CuNi10Fe1Mn	CW352H	max.	—	0.05	0,1^b	2.0	1	11.0	0.02	0.02	0.05	0.03	0.5	0.2	8.9
CuNi30Mn1Fe	CW354H	min.	Rest	—	—	0.4	0.5	30.0	—	—	—	—	—	—
CuNi30Mn1Fe	CW354H	max.	—	0.05	0,1^b	1	1.5	32.0	0.02	0.02	0.05	0.05	0.5	0.2	8.9
	^aFor information only. ^bCo max. 0.1 % is counted as Ni.

Composition of copper-nickel-zinc alloys

Material		Chemical composition, %									Density^a, g/ cm3
Symbol	Number	Element	Cu	Fe	Mn	Ni	Pb	Sn	Zn	Others total	approx.
CuNi12Zn24	CW403J	min.	63	—	—	11	—	—	Rest	—	8.7
CuNi12Zn24	CW403J	max.	66	0.3	0.5	13	0.03	0.03	—	0.2	8.7
CuNi18Zn20	CW409J	min.	60	—	—	17	—	—	Rest	—	8.7
CuNi18Zn20	CW409J	max.	63	0.3	0.5	19	0.03	0.03	—	0.2	8.7
	^aFor information only.

Composition of copper-tin alloys

Material		Chemical composition, %									Density^a, g/ cm3
Symbol	Number	Element	Cu	Fe	Ni	P	Pb	Sn	Zn	Others total	approx.
CuSn6	CW452K	min.	Rest	—	—	0.01	—	5.5	—	—	8.8
CuSn6	CW452K	max.	—	0.1	0.2	0.4	0.02	7	0.2	0.2	8.8
CuSn8	CW453K	min.	Rest	—	—	0.01	—	7.5	—	—	8.8
CuSn8	CW453K	max.	—	0.1	0.2	0.4	0.02	8.5	0.2	0.2	8.8
CuSn4Pb2P	CW455K	min.	Rest	—	—	0.2	1.5	3.5	—	—	8.9
CuSn4Pb2P	CW455K	max.	—	0.1	0.2	0.4	2.5	4.5	0.3	0.2	8.9
CuSn8P	CW459K	min.	Rest	—	—	0.2	—	7.5	—	—	8.8
CuSn8P	CW459K	max.	—	0.1	0.3	0.4	0.05	8.5	0.3	0.2	8.8
CuSn8PbP	CW460K	min.	Rest	—	—	0.2	0.1	7.5	—	—	8.8
CuSn8PbP	CW460K	max.	—	0.1	0.3	0.4	0.5	9.0	0.3	0.2	8.8
	^aFor information only.

Composition of copper-zinc alloys

Material		Chemical composition, % ^b									Density^a, g/ cm2
Symbol	Number	Element	Cu	Al	Fe	Ni	Pb	Sn	Zn	Others total	approx.
CuZn5	CW500L	min.	94.0	—	—	—	—	—	Rest	—	8.9
CuZn5	CW500L	max.	96.0	0.02	0.05	0.05	0.05	0.1	—	0.1	8.9
CuZn10	CW501L	min.	89.0	—	—	—	—	—	Rest	—	8.8
CuZn10	CW501L	max.	91.0	0.02	0.05	0.3	0.05	0.1	—	0.1	8.8
CuZn15	CW502L	min.	84.0	—	—	—	—	—	Rest	—	8.8
CuZn15	CW502L	max.	86.0	0.02	0.05	0.3	0.05	0.1	—	0.1	8.8
CuZn20	CW503L	min.	79.0	—	—	—	—	—	Rest	—	8.7
CuZn20	CW503L	max.	81.0	0.02	0.05	0.3	0.05	0.1	—	0.1	8.7
CuZn30	CW505L	min.	69.0	—	—	—	—	—	Rest	—	8.5
CuZn30	CW505L	max.	71.0	0.02	0.05	0.3	0.05	0.1	—	0.1	8.5
CuZn36	CW507L	min.	63.5	—	—	—	—	—	Rest	—	8.4
CuZn36	CW507L	max.	65.5	0.02	0.05	0.3	0.05	0.1	—	0.1	8.4
CuZn37	CW508L	min.	62.0	—	—	—	—	—	Rest	—	8.4
CuZn37	CW508L	max.	64.0	0.05	0.1	0.3	0.1	0.1	—	0.1	8.4
CuZn40	CW509L	min.	59.0	—	—	—	—	—	Rest	—	8.4
CuZn40	CW509L	max.	61.5	0.05	0.2	0.3	0.2	0.2	—	0.2	8.4
	^aFor information only.

Composition of copper-zinc-lead alloys

Material		Chemical composition, % ^b											Density, g/cm3
Symbol	Number	Element	Cu	Al	As	Fe	Mn	Ni	Pb	Sn	Zn	Others total	approx.
CuZn35Pb1	CW600N	min.	62.5	—	—	—	—	—	0.8	—	Rem.	—	8.5
CuZn35Pb1	CW600N	max.	64.0	0.05	—	0.1	—	0.3	1.6	0.1	—	0.1	8.5
CuZn35Pb2 ^b	CW601N ^b	min.	62.0	—	—	—	—	—	1.6	—	Rem.	—	8.5
CuZn35Pb2 ^b	CW601N ^b	max.	63.5	0.05	—	0.1	—	0.3	2.5	0.1	—	0.1	8.5
CuZn36Pb2As ^b	CW602N ^b	min.	61.0	—	0.02	—	—	—	1.7	—	Rest	-	8.4
CuZn36Pb2As ^b	CW602N ^b	max.	63.0	0.05	0.15	0.1	0.1	0.3	2.8	0.1	-	0.2	8.4
CuZn36Pb3 ^b	CW603N^b	min.	60.0	—	—	—	—	—	2.5	—	Rem.	—	8.5
CuZn36Pb3 ^b	CW603N^b	max.	62.0	0.05	—	0.3	—	0.3	3.5	0.2	—	0.2	8.5
CuZn37Pb0,5	CW604N	min.	62.0	—	—	—	—	—	0.1	—	Rem.	—	8.4
CuZn37Pb0,5	CW604N	max.	64.0	0.05	—	0.1	—	0.3	0.8	0.2	—	0.2	8.4
CuZn37Pb1^b	CW605N^b	min.	61.0	—	—	—	—	—	0.8	—	Rem.	—	8.5
CuZn37Pb1^b	CW605N^b	max.	62.5	0.05	—	0.3	—	0.3	1.6	0.3	—	0.2	8.5
CuZn38Pb1 ^b	CW607N ^b	min.	60.0	—	—	—	—	—	0.8	—	Rem.	—	8.4
CuZn38Pb1 ^b	CW607N ^b	max.	61.0	0.05	—	0.2	—	0.3	1.6	0.2	—	0.2	8.4
CuZn38Pb2 ^b	CW608N ^b	min.	60.0	—	—	—	—	—	1.6	—	Rem.	—	8.4
CuZn38Pb2 ^b	CW608N ^b	max.	61.0	0.05	—	0.2	—	0.3	2.5	0.2	—	0.2	8.4
CuZn39Pb3 ^b	CW614N ^b	min.	57.0	—	—	—	—	—	2.5	—	Rem.	—	8.4
CuZn39Pb3 ^b	CW614N ^b	max.	59.0	0.05	—	0.3	—	0.3	3.5	0.3	—	0.2	8.4
CuZn40Pb2 ^b	CW617N ^b	min.	57.0	—	—	—	—	—	1.6	—	Rem.	—	8.4
CuZn40Pb2 ^b	CW617N ^b	max.	59.0	0.05	—	0.3	—	0.3	2.5	0.3	—	0.2	8.4
	^aFor information only. ^bThe note to Clause 1 of standard EN 12449 states that copper tubes with an outer diameter below 80 mm and/or a wall thickness above 2 mm are often intended for machining, in which case standard EN 12168 applies. This clarification guides users to choose standard EN 12168 for automatic machining, optimising material selection for composition and tolerances. ^c The maximum value for iron and tin was changed from 0.2 % to 0.3 % based on a CEN/TC 133 decision.