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

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We usually continually offer you the most conscientious consumer services, along with the widest variety of designs and styles with finest materials. These initiatives include the availability of customized designs with speed and dispatch for Automatic Pipe Welding , Heavy Wall Pipe Welding , Stainless Steel Gas Pipe , With our rules of small business standing, partner trust and mutual benefit, welcome all of you to definitely do the job alongside one another , grow together.

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 are experienced manufacturer. Wining the majority of the crucial certifications of its market 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: Argentina, Saudi Arabia, Greece, Our products are produced with the best raw materials. Every moment, we constantly improve the production programme. In order to ensure better quality and service, we have been focusing on the production process. We have got high praise by partner. We are looking forward to establishing business relationship with you.

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This supplier stick to the principle of Quality first, Honesty as base, it is absolutely to be trust.

By Elsie from Croatia - 2018.06.26 19:27

The factory can meet continuously developing economic and market needs, so that their products are widely recognized and trusted, and that's why we chose this company.

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