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What are the technical requirements of the national standard fluid seamless steel pipe?

10-30-2020 12:42 PM CET | Industry, Real Estate & Construction

Press release from: Nansteel Manufacturing Co.,Ltd

What are the technical requirements of the national standard

The technical requirements for seamless steel pipes for national standard fluids mainly include the following aspects:

1.Chemical composition: stipulate the maximum content of acrobatic elements in the chemical composition of various steels.

2.Geometric dimensional accuracy: including outer diameter, wall thickness, length tolerance and bending degree of fixed-length pipe; diameter accuracy reflects the ovality of seamless steel pipe for fluid, and wall thickness accuracy reflects the wall of seamless steel pipe for fluid Thickness uniformity.

3.Surface quality: specify the internal and external surface conditions of seamless steel pipes for fluids and the degree of allowable defects on the surface.

4.Physical and chemical properties: mechanical properties at room temperature, mechanical properties at a certain temperature and corrosion resistance (anti-oxidation, anti-water erosion, anti-acid and alkali properties).

5.Process performance: flattening, flaring, crimping and welding performance.

6.Metallographic structure: including low power structure and high power structure.

7.Special requirements for fluid steel pipes for special purposes.

Tips:ASTM A500 (Also known as A-500) carbon steel tubing is a standard specification for cold-formed welded and seamless carbon steel structural tubing in round, square and rectangular shapes.
ASTM A500 Grade B:
Tensile Strength: 58,000 psi (min)
Yield Strength: 46,000 psi (min)
Elongation: 23%

Xueshi Rd, Yuelu Technology Industrial Park, Changsha,China

Nansteel Manufacturing Co.,Ltd manufacture and supply differenet steel products, like seamless steel pipe, carbon steel pipe, stainless steel pipe, casing etc. For more information, please visit: https://www.nan-steel.com/

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