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

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Sincerity, Innovation, Rigorousness, and Efficiency will be the persistent conception of our company to the long-term to establish together with customers for mutual reciprocity and mutual gain for Socket Weld Pipe Fittings , Gas Line , High-Quality Hollow-Section Structural Pipes , We welcome customers, business associations and friends from all parts of the world to contact us and seek cooperation for mutual benefits.

OEM/ODM Factory The 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, %
Element	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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We've got a really efficient group to deal with inquiries from prospects. Our purpose is 100% customer fulfillment by our product excellent, price & our group service and enjoy a superb track record amid clientele. With many factories, we can easily deliver a wide selection of OEM/ODM Factory The 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: Georgia, Mongolia, Miami, Due to our good goods and services, we've received good reputation and credibility from local and international customers. If you will need more information and are interested in any of our solutions, be sure to feel free to contact us. We look forward to becoming your supplier in the near future.

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We have been engaged in this industry for many years, we appreciate the work attitude and production capacity of the company, this is a reputable and professional manufacturer.

By Andrew from Moscow - 2018.06.28 19:27

This enterprise in the industry is strong and competitive, advancing with the times and develop sustainable, we are very pleased to have a opportunity to cooperate!

By Beatrice from Swiss - 2017.11.12 12:31

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