Copper
was the first metal utilised by Man. Records show that the
Egyptians were using copper about 4000 years BC. Copper
made its first appearance in Europe by the early Stone Age.
The compositions of the various types of copper are not
solely due to the purity, but also to the presence, or lack
of oxygen, which performs a special function with copper.
A low oxygen content assists in negating trace impurities
and therefore increasing the electrical conductivity.
We produce seamless copper tubes in the alloys of Cu-DHP
and Cu-ETP in coils or in straight lengths. These tubes
are finished in accordance with
DIN 1754/1787/17671
DIN EN 12449
and also to special customer requirements.
Designation
Material
No. DIN
Material
No. EN
Characteristics
and uses
Cu-DHP
(SF-CU)
2.0090
CW024A
Phosphorus
– deoxidised copper for general and chemical
engineering, particularly when brazing or welding
is involved, but without too great a
demand on the electrical conductivity.
Cu-ETP
(E-Cu57)
2.0060
CW004A
Electrolytical
– deoxidised copper with
a minimum electrical conductivity in
the soft condition of 57.0 m/Ohm mm²,
but unsuitable for brazing or welding.
Suitable for the electronic industry.
Our
current standard production sizes are as follows:
Outside
diameter
Wall
thickness
0,10
0,15
0,20
0,25
0,30
0,40
0,50
0,75
1,00
1,50
2,00
1
X
X
X
2
X
X
X
X
X
3
X
X
X
X
X
X
X
4
X
X
X
X
X
X
X
X
5
X
X
X
X
X
X
X
X
X
6
X
X
X
X
X
X
X
X
7
X
X
X
X
X
X
X
8
X
X
X
X
X
X
X
9
X
X
X
X
X
X
10
X
X
X
X
X
X
11
X
X
X
X
X
X
12
X
X
X
X
X
13
X
X
X
X
X
14
X
X
X
X
X
15
X
X
X
X
16
X
X
X
X
17
X
X
18
X
X
We
are of-course able to produce in between sizes.
