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Copper tubes for heat exchangers

Round copper tubes for the manufacture of heat exchangers. Two supply options: in lengths or in coils.

Data sheet: Copper tubes for heat exchangers

Copper tubes for heat exchangers are characterised by excellent heat conduction and corrosion resistance properties. Copper is a good conductor of heat and for this type of application it is a material that also retains all its properties in environments that can become corrosive.

Heat exchangers made of copper tubes can improve energy efficiency as the material makes it easier for the heat exchangers to work efficiently. Another advantage of using copper for heat exchangers is that it is a very easy material to clean.

At Bronmetal we adapt to your needs and we offer you two forms of supply: in lengths or in coils, so that you can choose according to the requirements of your projects. Consult the technical data sheet section with details of the alloys, mechanical characteristics – tensile strength, conventional limit of elasticity of 0.2%, elongation, expansion and hardness -, equivalences and tolerances for more information.

Material Designation		Chemical Composition in % (m/m)															Density¹ g/cm³
Symbolic	Numerical	elemento	Cu	Al	As	C	Co	Fe	Mn	Ni	P	Pb	S	Sn	Zn	total others	approx.
Cu-DHP	CW024A	min.	99.9²	-	-	-	-	-	-	-	0,015	-	-	-	-	-	8,9
Cu-DHP	CW024A	max	-	-	-	-	-	-	-	-	0,040	-	-	-	-	-
CuAl5As³	CW300G³	min.	Rest	4,0	0,1	-	-	-	-	-	-	-	-	-	-	-	8,2
CuAl5As³	CW300G³	max	-	6,5	0,4	-	-	0,2	0,2	0,2	-	0,02	-	0,05	0,3	0,3
CuNi10Fe1Mn³	CW352H³	min.	Rest	-	-	-	-	1.0⁵	0,5	9,0	-	-	-	-	-	-	8,9
CuNi10Fe1Mn³	CW352H³	max	-	-	-	0,05	0.1⁴	2.0⁵	1,0	11,0	0,02	0,02	0.05⁶	0,03	0.5⁶	0,2
Cuni30Fe2Mn2³	CW353H³	min.	Rest	-	-	-	-	1,5	1,5	29,0	-	-	-	-	-	-	8,9
Cuni30Fe2Mn2³	CW353H³	max	-	-	-	0,05	0.1⁴	2,5	2,5	32,0	0,02	0,02	0.05⁶	0,05	0.5⁶	0,2
CuNi30Mn1Fe³	CW354H³	min.	Rest	-	-	-	-	0,4	0,5	30,0	-	-	-	-	-	-	8,9
CuNi30Mn1Fe³	CW354H³	max	-	-	-	0,05	0.1⁴	1,0	1,5	32,0	0,02	0,02	0.05⁶	0,05	0.5⁶	0,2
CuZn20Al2As³	CW702R³	min.	76,0	1,8	0,02	-	-	-	-	-	-	-	-	-	Rest	-	8,4
CuZn20Al2As³	CW702R³	max	79,0	2,3	0,06	-	-	0,07	0,1	0,1	0,01	0,05	-	-	-	0,3
CuZn28Sn1As	CW706R	min.	70,0	-	0,02	-	-	-	-	-	-	-	-	0,9	Rest	-	8,5
CuZn28Sn1As	CW706R	max	72,5	-	0,06	-	-	0,07	0,1	0,1	0,01	0,05	-	1,3	-	0,3
CuZn30As	CW707R	min.	69,0	-	0,02	-	-	-	-	-	-	-	-	-	Rest	-	8,5
CuZn30As	CW707R	max	71,0	0,02	0,06	-	-	0,05	0,1	-	0,01	0,07	-	0,05	-	0,3
¹ Only for information
² Including silver, up to a maximum of 0.015%.
³ These alloys may be used in marine environments.
⁴ Cobalt max. 0.1%, is counted as Ni.
⁵ For applications in marine environments, composition limits must be subjected to agreement between client and supplier.
⁶ If purchaser specifies that product must be subsequently welded, the following limits may not be exceeded: Zn max. 0.2%

Material Designation
DIN EN 12451		DIN 1785: 1983-10
Symbol	Number	Symbol	Number
Cu-DHP	CW024A	SF-Cu	2.0090
CuAl5As	CW300G	CuAl5As	2.0918
CuNi10Fe1Mn	CW352H	CuNi10fe1Mn	2.0872
CuNi30Fe2Mn2	CW353H	CuNi30Fe2Mn2	2.0883
CuNi30Mn1Fe	CW354H	CuNi30Mn1Fe	2.0882
CuZn20Al2As	CW702R	CuZn20Al2	2.0460
CuZn28Sn1As	CW706R	CuZn28Sn1	2.0470
CuZn30As	CW707R	-	-

Designations			Tensile Strength	Yield Limit at 0,2%	Elongation	Expansion	Hardness
Designations			R_m	R_^p0.2	A	%	HV
Material		Metallurgical State	N/mm²	N/mm²	%	%	HV
Symbolic	Numerical	Metallurgical State	min.	min.	min.	min.	min.	max.
Cu-DHP	CW024A	R250	250	150	20	20	-	-
		H075	-	-	-	20	75	100

		R290	290	250	5	-	-	-
		H100	-	-	-	-	100	-

CuAl5As	CW300G	R350¹	350	110	50	30	-	-
		H0751	-	-	-	30	75	110

CuNi10Fe1Mn	CW352H	R290¹	290	90	30	30	-	-
		H075¹	-	-	-	30	75	105

		R310	310	220	12	20	-	-
		H105	-	-	-	20	105	150

		R480	480	400	8	8	-	-
		H150	-	-	-	8	150	-

Cuni30Fe2Mn2	CW353H	R420¹	420	150	30	30	-	-
		H090¹	-	-	-	30	90	125

Cuni30mn1Fe	CW354H	R370¹	370	120	35	30	-	-
		H090¹	-	-	-	30	90	120

		R480	480	300	12	20	-	-
		H120	-	-	-	20	120	-

CuZn20Al2As	CW702R	R340¹	340	120	55	30	-	-
		H070¹	-	-	-	30	70	100

		R390¹	390	150	45	30	-	-
		R085¹	-	-	-	30	85	110

CuZn28Sn1As	CW706R	R320¹	320	100	55	30	-	-
		H060¹	-	-	-	30	60	90

		R360¹	360	140	45	30	-	-
		H080¹	-	-	-	30	80	110

CuZn30As	CW707R	R340¹	340	130	45	30	-	-
CuZn30As	CW707R	H075¹	-	-	-	30	75	105
¹ In annealed state.
NOTE 1 - 1 N/mm² equivalent to 1 Mpa.

Exterior Diameter(nominal measurement)		Tolerances for diameter
from	to	Tolerances for diameter
6^a	14	0
6^a	14	-0,12
14	26	0
14	26	-0,2
26	76	-
26	76	-0,3
^a Includes 6.

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INDUSTRIAL SECTOR Bronmetal

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Created 07/07/2020

Copper tubes for heat exchangers

Data sheet: Copper tubes for heat exchangers

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