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
max - - - - - - - - 0,040 - - - - -
CuAl5As3 CW300G3 min. Rest 4,0 0,1 - - - - - - - - - - - 8,2
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
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
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
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
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
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
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.
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
Rm Rp0.2 A % HV
Material Metallurgical State N/mm2 N/mm2 %
Symbolic Numerical 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 - -
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
6a 14 0
-0,12
14 26 0
-0,2
26 76 -
-0,3
a    Includes 6.

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Created 07/07/2020
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