Chemical composition: stipulate the maximum content of acrobatic elements in the chemical composition of various steels.
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.
Surface quality: specify the internal and external surface conditions of seamless steel pipes for fluids and the degree of allowable defects on the surface.
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).
Process performance: flattening, flaring, crimping and welding performance.
Metallographic structure: including low power structure and high power structure.
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.
Tensile Strength: 58,000 psi (min)
Yield Strength: 46,000 psi (min)
Elongation: 23%