2021 Good Quality Pipeline - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral

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Quality 1st, Honesty as base, Sincere company and mutual profit is our idea, in an effort to create consistently and pursue the excellence for China Epoxy Sewer Pipe Lining , X42 SSAW Pipe Factory , Saw Welded Pipe , To achieve reciprocal advantages, our company is widely boosting our tactics of globalization in terms of communication with overseas customers, fast delivery, the best quality and long-term cooperation.

2021 Good Quality Pipeline - 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 hold strengthening and perfecting our items and repair. At the same time, we get the job done actively to do research and progress for 2021 Good Quality Pipeline - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral , The product will supply to all over the world, such as: Mumbai, azerbaijan, Anguilla, We warmly welcome you to come to visit us personally. We hope to establish a long-term friendship based on equality and mutual benefit. If you want to get in touch with us, please do not hesitate to call. We will be your best choice.

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Products and services are very good, our leader is very satisfied with this procurement, it is better than we expected,

By Renata from Saudi Arabia - 2018.11.04 10:32

This manufacturers not only respected our choice and requirements, but also gave us a lot of good suggestions, ultimately， we successfully completed the procurement tasks.

By Stephen from Cancun - 2018.12.30 10:21

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