Manufacturer For Welded Pipe - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral

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With our superb management, potent technical capability and strict quality command procedure, we go on to provide our shoppers with trustworthy high-quality, reasonable costs and outstanding services. We goal at becoming considered one of your most trustworthy partners and earning your pleasure for Welding Round Tube Steel , China EN10219 , SPIRALLY WELDED STEEL PIPES ASTM A252 Factories , Our tenet is clear all the time: to deliver high quality product at competitive price to customers around the world. We welcome potential buyers to contact us for OEM and ODM orders.
Manufacturer For Welded Pipe - 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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Manufacturer For Welded Pipe - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral detail pictures

Manufacturer For Welded Pipe - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral detail pictures


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We retain improving upon and perfecting our items and repair. At the same time, we perform actively to do research and progress for Manufacturer For Welded Pipe - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral , The product will supply to all over the world, such as: Swiss, Norway, French, We hope to have long-term cooperation relationships with our clients. If you are interested in any of our products, make sure you do not hesitate to send enquiry to us/company name. We ensure that you can be totally satisfied with our best solutions!
  • The company account manager has a wealth of industry knowledge and experience, he could provide appropriate program according our needs and speak English fluently.
    5 Stars By Megan from Germany - 2018.06.26 19:27
    The factory technical staff gave us a lot of good advice in the cooperation process, this is very good, we are very grateful.
    5 Stars By Sandra from Juventus - 2017.01.28 18:53
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