Well-Designed Gas Line Plumbing - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral
Well-Designed Gas Line Plumbing - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral Detail:
Mechanical Property
| Grade A | Grade B | Grade C | Grade D | Grade E | |
| Yield strength, min, Mpa(KSI) | 330(48) | 415(60) | 415(60) | 415(60) | 445(66) |
| Tensile strength, min, Mpa(KSI) | 205(30) | 240(35) | 290(42) | 315(46) | 360(52) |
Chemical Composition
|
Element |
Composition, Max, % |
||||
|
Grade A |
Grade B |
Grade C |
Grade D |
Grade E |
|
|
Carbon |
0.25 |
0.26 |
0.28 |
0.30 |
0.30 |
|
Manganese |
1.00 |
1.00 |
1.20 |
1.30 |
1.40 |
|
Phosphorus |
0.035 |
0.035 |
0.035 |
0.035 |
0.035 |
|
Sulfur |
0.035 |
0.035 |
0.035 |
0.035 |
0.035 |
Hydrostatic Test
Each length of pipe shall be tested by the manufacturer to a hydrostatic pressure that will produce in the pipe wall a stress of not less than 60% of the specified minimum yield strength at room temperature. The pressure shall be determined by the following equation:
P=2St/D
Permissible Variations In Weights and Dimensions
Each length of pipe shall be weighed separately and its weight shall not vary more than 10% over or 5.5% under its theoretical weight, calculated using its length and its weight per unit length.
The outside diameter shall not vary more than ±1% from the specified nominal outside diameter.
Wall thickness at any point shall not more than 12.5% under the specified wall thickness.
Length
Single random lengths: 16 to 25ft(4.88 to 7.62m)
Double random lengths: over 25ft to 35ft(7.62 to 10.67m)
Uniform lengths: permissible variation ±1in
Ends
Pipe piles shall be furnished with plain ends, and the burrs at the ends shall be removed
When the pipe end specified to be bevel ends, the angle shall be 30 to 35 degree
Product detail pictures:
Related Product Guide:
The organization keeps on the procedure concept scientific management, high quality and efficiency primacy, purchaser supreme for Well-Designed Gas Line Plumbing - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral , The product will supply to all over the world, such as: Cologne, Germany, French, Our tenet is integrity first, quality best. We have confidence in providing you with excellent service and ideal products. We sincerely hope we can establish win-win business cooperation with you in the future!
By Elvira from Albania - 2018.11.02 11:11
The company can think what our think, the urgency of urgency to act in the interests of our position, can be said this is a responsible company, we had a happy cooperation!
By Donna from Switzerland - 2017.08.18 11:04
