|
| PRODUCTION |
| Medium-weight steel pipes
made to DIN 2440-78 |
DIN 2440 - 78
Steel grade: St 33.2
Pipes are suitable for work with nominal pressure 25 for liquids and nominal pressure 10 for air and safety gas.
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Assortment of cold-worked pipes
|
External diameter |
Wall thickness |
Nominal weight,
plain end pipes |
| mm |
inch (nom.) |
mm |
inch |
kg/m |
|
21,3
|
1/2 |
2,65
|
0,104 |
1,22 |
|
26,9
|
3/4 |
2,65
|
0,104 |
1,58 |
|
33,7
|
1 |
3,25
|
0,128 |
2,44 |
|
42,4
|
1 1/4 |
3,25
|
0,128 |
3.14 |
|
48,3
|
1 1/2 |
3,25
|
0,128 |
3,61 |
|
60,3
|
2 |
3,65
|
0,144 |
5,10 |
|
76,1
|
2 1/2 |
3,65
|
0,144 |
6,51 |
Assortment of hot-worked pipes
|
External diameter |
Wall thickness |
Nominal weight,
plain end pipes |
| mm |
inch (nom.) |
mm |
inch |
kg/m |
| 88,9 |
3 |
4,05 |
0,160 |
8,74 |
| 114,3 |
4 |
4,50 |
0,177 |
12,10 |
| 139,7 |
5 |
4,85 |
0,190 |
16,20 |
Length of cold-worked pipes:
- random from 1,5 m up to 7 m;
- specified length is subject to agreement.
Length of hot-worked pipes:
- technological length is 6 m±1m;
- the length 4-5 m or 7-8 m is allowed; such pipes are bundled separately (under 10% of supplied quantity).
Note:
-Pipes are manufactured with plain ends without thread (only seamless).
-Pipes are supplied with "black" surface.
-Eddy-current test is used to check tightness of the pipes. |
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