Seamless round copper tubes for general applications, EN 12499 standard

EN 12449: seamless round copper and copper alloy tubes for general applications

Covers a wide range of alloys and dimensions, diameters from 3 mm up to 450 mm.

Applications: manufacturing of components for machine tools and assembly lines, automotive industry,

decorative elements and architecture, industrial installations

Outside diameter tolerances for round tubes in straight lengths, EN 12449

Nominal outside diameter		Tolerances
over	up to and including	Applicable to mean diameter	Applicable to any diameter, including out-of-roundness ^a,b for straight lengths
mm	mm	mm	mm
3c	10	±0.06	±0.12
10	20	±0.08	±0.16
20	30	±0.12	±0.24
30	50	±0.15	±0.30
50	100	±0.20	±0.50
100	200	±0.50	±1.00
200	300	±0.75	±1.50
300	450	±1.00	±2.00
a The tolerances in this column do not apply to coiled tubes or to tubes with an outside diameter/wall thickness ratio > 50 or annealed tubes.
b When the diameter is measured at a distance from the tube end up to 100 mm or equivalent to one nominal outside diameter (whichever is smaller), unless otherwise agreed, the tolerance may be increased by a factor of 3.
c Including 3.

Wall thickness tolerances for round tubes, EN 12449

Fixed length tolerances for round tubes, in straight lengths, EN 12449

Nominal diameter tolerances, including out-of-roundness, for coiled tubes, EN 12449

Nominal outside diameter		Tolerances
over	up to and including	Applicable to nominal diameter, including out-of-roundness	Applicable to inside diameter, coiled
3^a	6	±0.30	400
6	10	±0.50	600
10	20	±0.70	800
20	30	±0.90	1000
a Including 3.