Fast Delivery Gas Pipes - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral

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Fast Delivery Gas Pipes - 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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Fast Delivery Gas Pipes - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral detail pictures

Fast Delivery Gas Pipes - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral detail pictures


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Our mission is usually to turn into an innovative provider of high-tech digital and communication devices by furnishing benefit added design and style, world-class manufacturing, and service capabilities for Fast Delivery Gas Pipes - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral , The product will supply to all over the world, such as: Bolivia, Luxemburg, Macedonia, we sincerely hope to establish a good and long-term business relationship with your esteemed company through this opportunity, based on equality, mutual benefit and win-win business from now to the future. Your satisfaction is our happiness.
  • The company account manager has a wealth of industry knowledge and experience, he could provide appropriate program according our needs and speak English fluently.
    5 Stars By Bertha from Frankfurt - 2018.09.23 17:37
    The product classification is very detailed that can be very accurate to meet our demand, a professional wholesaler.
    5 Stars By Julia from Malta - 2017.01.28 19:59
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