Cheap PriceList For Oil Pipe Line - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral

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Control the standard by the details, show the power by quality. Our business has strived to establish a highly efficient and stable team staff and explored an effective good quality regulate course of action for Gas Lines , S235 J0 Spiral Steel Pipe Factories , Welding Pipe To Pipe , With the development of society and economy, our company will keep a tenet of Focus on trust, quality the first, moreover, we expect to create a glorious future with every customer.

Cheap PriceList For Oil 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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Sincerity, Innovation, Rigorousness, and Efficiency may be the persistent conception of our organization for that long-term to establish jointly with customers for mutual reciprocity and mutual gain for Cheap PriceList For Oil 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: Detroit, Uzbekistan, Paris, We always insist on the principle of Quality and service are the life of the product. Till now, our products have been exported to more than 20 countries under our strict quality control and high level service.

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