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EN 12735 Seamless, Round Copper Tubes for Air Conditioning and Refrigeration - Dimensions

Dimensions of seamless, round copper tubes for air conditioning and refrigeration piping systems.

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Dimensions of copper tubes according EN 12735 Copper and copper alloys. Seamless, round copper tubes for air conditioning and refrigeration. Tubes for piping systems:

Nominal Outside Diameter - d -			Nominal Wall Thickness - e - (mm)
Metric Series	Imperial Series		Nominal Wall Thickness - e - (mm)
(mm)	(mm)	(in)	0.8	1.0	1.25	1.5	1.65	2.0	2.5
	3.18	1/8	C
	3.97	5/32	C	C
	4.76	3/16	C
6			S, C	C
	6.35	1/4	C	C
	7.94	5/16	C	C
8			S, C	C
	9.52	3/8	C	C
10			S, C	S, C
12				S, C
	12.7	1/2	C	S, C
15				S, C
	15.87	5/8		S, C
18				S, C
	19.06	3/4		C	S
22				S, C
	22.3	7/8		C	S
	25.4	1		S
28						S
	28.57	1 1/8		S	S
	34.92	1 3/8			S
35						S
	41.27	1 5/8			S
42						S
	53.97	2 1/8			S		S
54								S
64								S
	66.67	2 5/8			S		S	S
76.1								S
	79.37	3 1/8					S		S
	88.90	3 1/2						S
	92.07	3 5/8					S		S
	104.80	4 1/8					S		S
108									S

•Recommended

S - available in straight lengths
C - available in coils

1 inch = 25.4 mm

Example - Designation of EN 12735 Copper Tube

Copper tube EN 12735 R290 15×1.0

where R290 is material temper.

Material Temper

Material Temper		Tensile Strength	Elongation min.	Vickers Hardness
Designation	Commonly used term	(MPa)	(%)	HV5
R220	annealed, soft		40	40 - 70
R250	half hard	250	30	75 - 100
R290	hard	290	3	over 100

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Related Topics

Dimensions - Sizes and dimensions of pipes and tubes, and their fittings - inside and outside diameter, weight and more.
Gases and Compressed Air - Air, LNG, LPG and other common gas properties, pipeline capacities, sizing of relief valves.

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Engineering ToolBox, (2018). EN 12735 Seamless, Round Copper Tubes for Air Conditioning and Refrigeration - Dimensions. [online] Available at: https://www.engineeringtoolbox.com/EN-12735-copper-tubes-air-conditioning-refrigeration-d_2127.html [Accessed Day Mo. Year].

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