Factory Outlets Residential Gas Piping - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral

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Factory Outlets Residential Gas Piping - 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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Factory Outlets Residential Gas Piping - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral detail pictures

Factory Outlets Residential Gas Piping - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral detail pictures


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We have now sophisticated machines. Our solutions are exported to the USA, the UK and so on, enjoying a great reputation amid consumers for Factory Outlets Residential Gas Piping - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral , The product will supply to all over the world, such as: Poland, St. Petersburg, Poland, To have much more enterprise. ompanions, we've got updated the item list and seek for optimistic co-operation. Our web-site shows the latest and complete information and facts about our goods list and company. For further acknowledge, our consultant service group in Bulgaria will reply to all of the inquiries and complications immediately. They're going to make their finest effort to meet buyers need. Also we support the delivery of absolutely free samples. Business visits to our business in Bulgaria and factory are generally welcome for a win-win negotiation. Hope to expertise a happy company co-operation perform with you.
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    5 Stars By Phoenix from Malta - 2017.11.11 11:41
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