Wholesale SPIRALLY WELDED STEEL PIPES ASTM A252 - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral

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With this motto in mind, we have become one of the most technologically innovative, cost-efficient, and price-competitive manufacturers for Metal Pipe Welding , China A252 GRADE 2 Steel Pipe , SPIRALLY WELDED STEEL PIPES ASTM A252 Exporter , We, with fantastic passion and faithfulness, are willing to offer you with best services and striding forward with you to make a bright foreseeable future.
Wholesale SPIRALLY WELDED STEEL PIPES ASTM A252 - 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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Wholesale SPIRALLY WELDED STEEL PIPES ASTM A252 - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral detail pictures

Wholesale SPIRALLY WELDED STEEL PIPES ASTM A252 - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral detail pictures


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Adhering to the principle of quality, service, efficiency and growth, we have gained trusts and praises from domestic and international client for Wholesale SPIRALLY WELDED STEEL PIPES ASTM A252 - Helical-seam carbon steel pipes ASTM A139 Grade A, B, C – Spiral , The product will supply to all over the world, such as: Swiss, South Korea, kazan, Based on our guiding principle of quality is the key to development, we continually strive to exceed our customers' expectations. As such, we sincerely invite all interested companies to contact us for future cooperation, We welcome old and new customers to hold hands together for exploring and developing; For more information, please feel free to contact us. Thanks. Advanced equipment, strict quality control, customer-orientation service, initiative summary and improvement of defects and extensive industry experience enable us to guarantee more customer satisfaction and reputation which, in return, brings us more orders and benefits. If you are interested in any of our products, please feel free to contact us. Inquiry or visit to our company are warmly welcome. We sincerely hope to start a win-win and friendly partnership with you. You can see more details in our website.
  • Company director has very rich management experience and strict attitude, sales staff are warm and cheerful, technical staff are professional and responsible,so we have no worry about product,a nice manufacturer.
    5 Stars By Olga from Bulgaria - 2017.09.30 16:36
    This supplier's raw material quality is stable and reliable, has always been in accordance with the requirements of our company to provide the goods that quality meet our requirements.
    5 Stars By Delia Pesina from Portugal - 2018.12.14 15:26
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