EN 1057 Copper Tubes - Dimensions Calculator

Calculator for EN 1057 Copper and copper alloys - Seamless, round copper tubes for water and gas in sanitary and heating applications. Calculate inner diameter and cross-sectional area based on nominal outside diameter and wall thickness.

Calculator

Inputs

Nominal Outside Diameter (d) (mm)

Nominal Wall Thickness (e) (mm)

Results

Inner Diameter-- mm

Cross-Sectional Area-- mm²

Tube Designation Example--

Material Temper	Commonly Used 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

Nominal Outside Diameter (mm)	Tube Length (m)	Wall Thickness Option 1 (mm)	Wall Thickness Option 2 (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	1.0
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	2.0
67	3, 6	1.2	2.0
76	3, 6	1.5	2.0
108	3, 6	1.5	2.5
133	3, 6	1.5
159	3, 6	2.0
219	6	3.0

EN 1173 - Letter Symbols for Property Designations

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 (like R220 - 220 MPa)
Y: 0.2% proof strength

Example - Designation

Copper tube EN 1057 R250 12×1.0

Where R250 is the material temper designation.

Conversion

1 inch = 25.4 mm

EN 1057 Copper Tubes - Dimensions Calculator | MEPKit Engineering Tools | MEPKit