2021 Latest Design Gas Line Fitting - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral

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Our well-equipped facilities and great good quality regulate throughout all stages of manufacturing enables us to guarantee total buyer gratification for Spiral Pipe Welding Length Calculation , S355 J0 Spiral Steel Pipe Exporters , CE Certification X60 SSAW Line Pipe , We welcome new and previous customers from all walks of lifestyle to call us for upcoming business enterprise interactions and reach mutual accomplishment!
2021 Latest Design Gas Line Fitting - 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, %

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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2021 Latest Design Gas Line Fitting - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral detail pictures

2021 Latest Design Gas Line Fitting - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral detail pictures


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Quality to start with, Honesty as base, Sincere company and mutual profit is our idea, as a way to build constantly and pursue the excellence for 2021 Latest Design Gas Line Fitting - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral , The product will supply to all over the world, such as: Ireland, Singapore, Jordan, We follow up the career and aspiration of our elder generation, and we are eager to open up a new prospect in this field, We insist on Integrity, Profession, Win-win Cooperation, because we have a strong backup, that are excellent partners with advanced manufacturing lines, abundant technical strength, standard inspection system and good production capacity.
  • As a veteran of this industry, we can say that the company can be a leader in the industry, select them is right.
    5 Stars By Merry from Sao Paulo - 2017.03.28 12:22
    This company conforms to the market requirement and joins in the market competition by its high quality product, this is an enterprise that have Chinese spirit.
    5 Stars By Marcie Green from Puerto Rico - 2017.02.28 14:19
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