High Definition Hollow-Section Structural Pipes - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral

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With state-of-the-art technologies and facilities, strict good quality regulate, reasonable cost, exceptional assistance and close co-operation with prospects, we're devoted to supplying the top benefit for our customers for Domestic Water Piping , China Welding Thin Wall Tubing , Pipe Piling Suppliers , Our highly specialized process eliminates the component failure and offers our customers unvarying quality, allowing us to control cost, plan capacity and maintain consistent on time delivery.
High Definition Hollow-Section Structural Pipes - 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


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High Definition Hollow-Section Structural Pipes - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral detail pictures

High Definition Hollow-Section Structural Pipes - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral detail pictures


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To create more benefit for buyers is our business philosophy; shopper growing is our working chase for High Definition Hollow-Section Structural Pipes - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral , The product will supply to all over the world, such as: Nepal, Germany, Greece, Good quality and reasonable price are our business principles. If you are interested in our products or have any questions, please feel free to contact us. We hope to establish cooperative relationships with you in the near future.
  • It is not easy to find such a professional and responsible provider in today's time. Hope that we can maintain long-term cooperation.
    5 Stars By Emma from Islamabad - 2017.08.28 16:02
    As a veteran of this industry, we can say that the company can be a leader in the industry, select them is right.
    5 Stars By Jean from Hungary - 2017.03.07 13:42
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