PriceList For Fire Pipe Line - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral
PriceList For Fire Pipe Line - 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:
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Well-run equipment, professional sales team, and better after-sales services; We are also a unified big family, everyone stick to the company value unification, dedication, tolerance for PriceList For Fire Pipe Line - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral , The product will supply to all over the world, such as: Danish, Cannes, Moldova, Our staffs are adhering to the Integrity-based and Interactive Development spirit, and the tenet of First-class Quality with Excellent Service. According to the needs of every customer, we give customized & personalised services to help customers achieve their goals successfully. Welcome clients from home and abroad to call and inquire!
By Maggie from Ireland - 2018.06.09 12:42
Company director has very rich management experience and strict attitude, sales staff are warm and cheerful, technical staff are professional and responsible,so we have no worry about product,a nice manufacturer.
By lucia from Barbados - 2017.12.09 14:01
