Hot Dip Galvanized Steel Pipe (for Gas)
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Standards
GB/T3091-2008, ASTM A53, ASTM A795: Welded steel pipes for low pressure fluid conveyance
Application
The hot dip galvanized steel pipes from Jinghua are mainly used for transport fuel gas and other fluids of general pressure.
Steel Grades
S235, S355, SS400, SM490
Pipe Performance
1. The hot dip galvanized pipe for gas transportation is made from premium quality strip steels that are sheared longitudinally;
2. The average gram weight of zinc coating is more than or equal to 500g/m2.
3. Before delivery, the steel gas pipes will go through 100% leakage test, 100% mechanical and chemical test, 100% technological property test and 100% UT test.
Nominal Diameter, Outer Diameter and Wall Thickness (Unit: mm)
| Nominal Diameter | Outer Diameter | Wall Thickness | Pieces per bundle | |
| Common steel pipe | Thickened steel pipe | |||
| 15 | 21.3 | 2.8 | 3.5 | 169 |
| 20 | 26.9 | 2.8 | 3.5 | 127 |
| 25 | 33.7 | 3.2 | 4.0 | 91 |
| 32 | 42.4 | 3.5 | 4.0 | 61 |
| 40 | 48.3 | 3.5 | 4.5 | 61 |
| 50 | 60.3 | 3.8 | 4.5 | 61 |
| 65 | 76.1 | 4.0 | 4.5 | 37 |
| 80 | 88.9 | 4.0 | 5.0 | 37 |
| 100 | 114.3 | 4.0 | 5.0 | 19 |
| 125 | 139.7 | 4.0 | 5.5 | 19 |
| 150 | 168.3 | 4.5 | 6.0 | 19 |
| Note: The nominal diameter in the table is approximate to the nominal inner diameter. It does not simply represent the inner diameter that is obtained by subtracting twice wall thicknesses from the outer diameter. | ||||
| Outer Diameter | Allowable deviation of outer diameter | Allowable deviation of wall thickness | |
| Pipe body | Pipe end (Within 100mm to the pipe end) | ||
| D≤48.3 | ±0.5 | - | ±10%t |
| 48.3 ＜ D≤273.1 | ±1%D | - | |
| 273.1 ＜ D≤508 | ±0.75%D | 2.4 -0.8 | |
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