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

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Our enterprise insists all along the standard policy of product high-quality is base of business survival; client satisfaction could be the staring point and ending of an business; persistent improvement is eternal pursuit of staff as well as consistent purpose of reputation first, client first for Welding Stainless Tube , Welding Aluminum Intercooler Piping , Round Pipe Welding , Standing still today and looking into the future, we sincerely welcome customers all over the world to cooperate with us.

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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With our superb management, potent technical capability and strict quality command procedure, we go on to provide our shoppers with trustworthy high-quality, reasonable costs and outstanding services. We goal at becoming considered one of your most trustworthy partners and earning your pleasure for 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: Netherlands, Bangladesh, Nigeria, We are seeking the chances to meet all the friends from both at home and abroad for the win-win cooperation. We sincerely hope to have long-term cooperation with all of you on the bases of mutual benefit and common development.

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The sales manager is very patient, we communicated about three days before we decided to cooperate, finally, we are very satisfied with this cooperation!

By Poppy from Sri Lanka - 2018.06.03 10:17

The customer service staff is very patient and has a positive and progressive attitude to our interest, so that we can have a comprehensive understanding of the product and finally we reached an agreement, thanks!

By Jenny from St. Petersburg - 2017.01.11 17:15

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