En 1075 Copper Tubes

Reference data and engineering information about en 1075 copper tubes for piping systems applications.

1075coppertubes

Overview

Engineering reference data for En 1075 Copper Tubes in piping systems.

Key Formulas

Continuity

$A_1 v_1 = A_2 v_2$

Mass conservation in pipe flow.

Pressure Drop

$\Delta P = f \frac{L}{D} \frac{\rho v^2}{2}$

Darcy-Weisbach equation.

Pipe Area

$A = \frac{\pi D^2}{4}$

Cross-sectional area of a pipe.

Variables

Symbol	Description	Unit
$D$	Pipe diameter	m
$v$	Flow velocity	m/s
$\Delta P$	Pressure drop	Pa
$f$	Friction factor	—

Material Properties

Temper Designations

Copper tubes according to EN 1057 are available in three material tempers, each with distinct mechanical properties:

3 rows

Material temper properties for EN 1057 copper tubes
EN 1173 Designation	Common Term	Size Range(mm)	Tensile Strength(MPa)	Elongation min.(%)	Vickers Hardness(HV5)
R220	annealed, soft	6 – 54	220	40	40 – 70
R250	half hard	6 – 66.7	250	20	75 – 100
R290	hard	6 – 159	290	5	95 – 120

Source: EN 1057 / EN 1173

EN 1173 Property Letter Symbols

Symbol	Property
A	Elongation
B	Spring bending limit
G	Grain size
H	Hardness (Brinell for castings, Vickers for wrought products)
M	(as) Manufactured, i.e. without specified mechanical properties
R	Tensile strength (e.g., R220 = 220 MPa)
Y	0.2% proof strength

Tube Dimensions

Plain Straight Tubes — R250 Half Hard & R290 Hard

15 rows

Dimensions of plain straight copper tubes (R250/R290 temper)
Nominal Outside Diameter(mm)	Tube Length(m)	Wall Thickness X(mm)	Wall Thickness Y(mm)
6	3, 6	0.6	0.8
8	3, 6	0.6	0.8
10	3, 6	0.6	0.8
15	3, 6	0.7	1
22	3, 6	0.9	1.2
28	3, 6	0.9	1.2
35	3, 6	1.2	1.5
42	3, 6	1.2	1.5
54	3, 6	1.2	2
67	3, 6	1.2	2
76	3, 6	1.5	2
108	3, 6	1.5	2.5
133	3, 6	1.5	—
159	3, 6	2	—
219	6	3	—

Source: EN 1057

Plain Coils — R220 Annealed (Soft)

2 rows

Dimensions of plain coil copper tubes (R220 annealed)
Nominal Outside Diameter(mm)	Coil Length(m)	Wall Thickness(mm)
15	25	1
22	25	1.2

Source: EN 1057

Chrome Plated Tubes — R250 Half Hard & R290 Hard

6 rows

Dimensions of chrome plated copper tubes (R250/R290 temper)
Nominal Outside Diameter(mm)	Tube Length(m)	Wall Thickness(mm)
15	2, 3	0.7
22	2, 3	0.9
28	3	0.9
35	3	1
42	3	1
54	3	1

Source: EN 1057

En 1075 Copper Tubes

Overview

Key Formulas

Continuity

Pressure Drop

Pipe Area

Variables

Material Properties

Temper Designations

EN 1173 Property Letter Symbols

Tube Dimensions

Plain Straight Tubes — R250 Half Hard & R290 Hard

Plain Coils — R220 Annealed (Soft)

Chrome Plated Tubes — R250 Half Hard & R290 Hard

Interactive Charts

ASTM B306 Copper Tubes for Drain, Waste and Vent - Dimensions and Working Pressures

ASTM B88 - Seamless Copper Water Tubes - Dimensions

BS 2871 Copper Tubes Table X, Y and Z - Working Pressures vs. Size

Copper Tubes - Heat Carrying Capacities

References