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Cooling equipment tubes

Wide selection of copper tubes for the manufacture of refrigeration equipment. Various outer diameter sizes available: from 6.35 to 66.67 mm.

Medidas:

Exterior Ø 6.35 to 66.67 mm.

Data sheet: Cooling equipment tubes

At Bronmetal we supply copper tubes in different formats for the manufacture of refrigeration equipment: round, square, rectangular and oval. All of them are manufactured using the Cu-DHP alloy, which is characterised by its good conductivity and resistance to corrosion. It is composed of a small amount of phosphorus which removes oxygen from the metal during its manufacture, improving its mechanical properties and corrosion resistance.

When ordering it is possible to select the state of treatment of the material according to the EN 1173 Standard which refers to the designation of the material states of copper and copper alloys. In the mechanical characteristics section you will find details of each of the treatment states: surface hardening, light annealing and soft annealing.

Material Designation		Chemical Composition in % (m/m)			Density² g/cm³ approx.
Symbolic	Numerical	Element	Cu¹	P	Density² g/cm³ approx.
Cu-DHP	CW024A	min.	99,90	0,015	8,9
Cu-DHP	CW024A	max.	-	0,040	8,9
¹ Including silver, up to a maximum of 0.015%.
² Only for information.

Nominal exterior diameter d			Nominal Wall Thickness e mm
Metric Series	Imperial Series		Nominal Wall Thickness e mm
mm	mm	in	0,28	0,30	0,35	0,40	0,45	0,50	0,63	0,70	0,80	1,00	1,25	1,50	1,65	2,00
	6,35	1/4	●	●	●	●
7			●	●	●	●
	7,94	5/16	●	●	●	●
8			●	●	●	■ ●
	9,52	3/8		●	●	■ ●	●	●		●	■
10				●	●	■ ●	●	■ ●		●	■
12					●	●	●	●	■	●	■
	12,70	1/2			●	●	■ ●	■ ●	■ ●	●	■
14									■		■
15						●	●	●	●
	15,87	5/8				●	●	■ ●	●	●	■	■
16						●	●	■ ●	■	●	■	■
18											■	■
	19,06	3/4							■			■
20									■		■	■
22									■		■	■
	22,23	7/8										■
	25,40	1										■
28												■
	28,57	1 1/8										■	■
	34,92	1 3/8											■
35														■
	41,27	1 5/8											■
42														■
	53,97	2 1/8											■		■
54																■
64																■
	66,67	2 5/8														■
NOTE - This table is the first step towards a norm which only includes metric values.
■ Available in straight lengths.
● Available in rolls.

SURFACE QUALITY

The interior and exterior surfaces of the piping must be clean and smooth. Any residue left over after solvent has evaporated must not exceed 38 mg/m2 of the internal surface.

Treatment State		Yield Limit with 0.2% deformation		Tensile Strength	Elongation	Grain size
Treatment State		R_p0.2		R_m	A	µm
Designation in line with Norm EN 1173	Common Term	MPa		MPa	%	µm
Designation in line with Norm EN 1173	Common Term	min.	max	min.	min.	min.	max.
Y080^a	superficial hardening	80	140	220	40	15	40
Y040	light annealed	40	90	220	40	15	40
Y035^b	soft annealed	35	80	210	40	30	60
NOTE - MPa equivalent to 1 N/mm²
^a Only straight lengths.
^b Nominal wall thickness e > 0.6 mm.

Nominal Exterior Diameter		Tolerances on nominal diameter
d		Applicable to mean diameter	Applicable to any diameter^a
greater than	less than or equal to	All Treatment States	State R290 (hard)	State R250 (semi-hard)
3	18	± 0,04	± 0,04	± 0,09
18	28	± 0,05	± 0,06	± 0,10
28	54	± 0,06	± 0,07	± 0,11
54	76,1	± 0,07	± 0,10	± 0,15
76,1	88,9	± 0,07	± 0,15	± 0,20
88,9	108	± 0,07	± 0,20	± 0,30
^a Including ovalization.

Nominal Exterior Diameter	Tolerances for wall thickness e^a
d	e < 1 mm	e ≥ 1 mm
mm	%	%
< 18	± 10	± 13
≥ 18	± 10	± 15
^a Including excentricity.

Documentation download

Title

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Type

Created

INDUSTRIAL SECTOR Bronmetal

Type Catalogue

Created 07/07/2020

Bronmetal Copper tubes

Type Technical sheets

Created 22/04/2020

Cooling equipment tubes

Data sheet: Cooling equipment tubes

SURFACE QUALITY

Documentation download

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