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| NATURAL GAS PIPES |
| Production Range |
Properties of SRM Natural Gas Pipes |
External Diameter :
21.3 mm - 323.9 mm
Wall Thickness :
2.80 mm - 9.50 mm
Length :
6 m (standard).
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The natural gas pipes that are easily processes, resistant to decaying, scale-free internal surface, suitable for central heating installations and manufactured with high standard SRM technology are exported to European countries for years because of these properties of them.
When the corrosion resistant, scale-free and internal surface standard pipes are heated and cooled by air during manufacturing, a structure and hardness different from the main material will be formed. Whereas Borusan SRM is heat treated additionally after the welding process during the manufacturing. The structure difference will be eliminated together with the heating of the pipe body in minimum 900 0C. Therefore the electrochemical corrosion resistance will have been increased significantly. Together with the heat treatment applied Borusan SRM natural gas pipes take shape much easier compared to the standard pipes.
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| Tolerances |
Manufacturing Standards |
- All tests required by API 5L standard are applied to the natural gas pipes.
- Manufactured from special quality steel bands.
- Ultrasonic and Eddy Current nondestructive tests are used. Two times tested.
- Heat treatment is applied to the pipes.
- In addition the samples taken from the pipes are checked against conformity with the standards by passing the physical and mechanical tests in Quality Control Department.
- All pipes pass from 100% hydrostatic pressure test and the magnetic tests and controlled whether they leak or there is a fault in the metallographic structure of the pipe or not.
manufactured from *21, 3 / 2,8 mm to 88,9 / 5,5 mm GR -A, 114,3 mm to 323,9 mm GR -B materials. We have special manufacturing in quality and diameter. All pipes are coated with varnish; Marking is made as to bear the Borusan logo, size, experiment, pressure and "Natural Gas’’ phrase.
- The natural gas installation pipes are manufactured in butt welding.
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Pipe Manufacturing Standards
:
API 5L, TS EN 10208 - 1, DIN 171172
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| External Diameter |
Wall Thickness
mm |
Test Pressure
kg/cm² |
|
| inch |
mm |
| 1/2 |
21.3 |
2.80 |
48 |
Gr-A |
| 3/4 |
26.7 |
2.90 |
48 |
| 1 |
33.4 |
3.40 |
48 |
| 1 1/4 |
42.2 |
3.60 |
83 |
| 1 1/2 |
48.3 |
3.70 |
84 |
| 2 |
60.3 |
3.90 |
161 |
| 2 2/2 |
73.0 |
5.20 |
172 |
| 3 |
88.9 |
5.50 |
154 |
| 4 |
114.3 |
6.00 |
152 |
Gr-B |
| 5 |
141.0 |
6.60 |
135 |
| 6 |
168.3 |
7.10 |
123 |
| 8 |
219.1 |
8.18 |
108 |
| 10 |
273.0 |
9.27 |
99 |
| 12 |
323.9 |
9.50 |
86 |
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