COPPER WATER TUBES IN ENDS

COPPER WATER TUBES IN ENDS


Standard documents:
EN 1057 Copper and copper alloys. Seamless round copper tubes for sanitary-technical, water, gas, heating and industrial use.


Brand:Cu-DHP with the chemical composition of EN 1057.


Method of manufacturing: Expanded


Purpose: tubes are used in drinking water systems, hot and cold water heating, cooling, sanitation, water treatment and supply.


Requirements:

Designation Standard

Mark

* Outside diameter, mm

* Wall thickness, mm

Length * mm

State

EN 1057

Cu-DHP

6-30

0,5-1,5

3000-5000

R290

The geometric dimensions according to EN 1057.


State and mechanical properties of the material:

Designation
Standard

State

Ultimate
MPa
at least

Relative
Elongation A 5%
at least

EN 1057

R290

290

3

Characteristics of the material (copper Cu-DHP grade of EN 1057)

1. Properties at high temperature: Mechanical properties of copper at temperatures typical for heating, when heated slightly reduced

2. Weldability: Copper Cu-DHP grade through a dense and homogeneous structure can be easily weld. However, to achieve a better quality it is necessary to choose the right technology to welding.


Surface Quality

The outer and inner surface of the tubes must be clean and smooth. The inner surface of the tubes must not contain the carbon film. The inner surface of tubes water content of residual carbon must be less than 0.20 mg / dm 2. Control produced by EN 1057.

The tubes should be sealed. Control discontinuities produced by the eddy current flaw detector.

_________________

* Requirements for the geometric dimensions of tubes negotiate with the customer when ordering.



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