OEM/ODM Supplier Pipe Line Welding - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral

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OEM/ODM Supplier Pipe Line Welding - 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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OEM/ODM Supplier Pipe Line Welding - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral detail pictures

OEM/ODM Supplier Pipe Line Welding - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral detail pictures


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We've been convinced that with joint efforts, the enterprise between us will bring us mutual benefits. We are able to assure you product or service quality and aggressive cost for OEM/ODM Supplier Pipe Line Welding - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral , The product will supply to all over the world, such as: Tunisia, Libya, Angola, It using the world's leading system for reliable operation, a low failure rate, it suitable for Argentina customers choice. Our company is situated within the national civilized cities, the traffic is very convenient, unique geographical and economic conditions. We pursue a people-oriented, meticulous manufacturing, brainstorm, build brilliant business philosophy. Strict quality management, perfect service, reasonable price in Argentina is our stand on the premise of competition. If necessary, welcome to contact us by our website or phone consultation, we will be happy to serve you.
  • High production efficiency and good product quality, fast delivery and completed after-sale protection, a right choice, a best choice.
    5 Stars By Quyen Staten from Iraq - 2017.10.13 10:47
    The company leader recept us warmly, through a meticulous and thorough discussion, we signed a purchase order. Hope to cooperate smoothly
    5 Stars By Poppy from Cannes - 2017.02.18 15:54
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