Factory Cheap Hot DSAW Pipes - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral

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Factory Cheap Hot DSAW 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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Factory Cheap Hot DSAW Pipes - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral detail pictures

Factory Cheap Hot DSAW Pipes - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral detail pictures


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The pretty loaded projects management experiences and one to a person support model make the high importance of business enterprise communication and our easy understanding of your expectations for Factory Cheap Hot DSAW Pipes - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral , The product will supply to all over the world, such as: Indonesia, Guyana, Kenya, We are your reliable partner in the international markets of our products. We focus on providing service for our clients as a key element in strengthening our long-term relationships. The continual availability of high grade products in combination with our excellent pre- and after-sales service ensures strong competitiveness in an increasingly globalized market. We are willing to cooperate with business friends from at home and abroad, to create a great future. Welcome to Visit our factory. Looking forward to have win-win cooperation with you.
  • We are long-term partners, there is no disappointment every time, we hope to maintain this friendship later!
    5 Stars By Hedy from Detroit - 2018.06.18 17:25
    The factory has advanced equipment, experienced staffs and good management level, so product quality had assurance, this cooperation is very relaxed and happy!
    5 Stars By Genevieve from Haiti - 2017.02.14 13:19
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