Advantages of Alloy Steel Seamless Pipes

 In Today’s time, it is very obvious that there are different types of steel pipes readily available in the domestic and international market. They are designed with different materials and manufacturing techniques to satisfy different kinds of requirements for practical purposes. Since we talk enough more about several common types of pipe, we will give more information on another important type of pipe: seamless steel pipe.

  • The Alloy Steel P22 Seamless Pipe manufacturing process begins with a solid, round steel billet. This billet is then heated to high temperatures and stretched and pulled over a shape until it takes the shape of a hollow tube. It is different from the welded pipe which is produced by rolling a sheet of steel into a tube and welding the seam.
  •  In Addition, the welded pipe joint has been viewed as a weak point, vulnerable to failure and corrosion. The main perceived benefit of seamless pipes is that they don’t have a weld seam. Therefore, the tensile strength of the seamless steel pipe is uniform around the entire circumference of the pipe. In that regard, the seamless pipe can bear higher pressure than the welded steel pipe. In today’s time, this kind of pipe has been mostly used for pipelines all over the world.



Features of Seamless Steel Pipes-

  • Chemical analysis: the chemical composition of the material chemical analysis, chemical composition standards.
  • The pressure of the test tube pressure of water pressure on the pressure of the pressure in the test, in the provisions of the pressure value, not less than 5 seconds left, no leakage, conventional water pressure test for the 2.45MPa pressure test for P = 0.5 MPAA.
  • Corrosion test: the supply of corrosion-resistant steel pipes according to the requirements of the standard or the agreement of the corrosion resistance test method of corrosion, no tendency to intergranular corrosion.
  • The process performance test: flattening test. Tensile test. Impact test. Flare test. Hardness test. Metallographic test. Bend test. Non-destructive testing (including eddy current testing, X-ray detection, and ultrasonic testing).
  • The theoretical weight:

CrNi W = 0.02491S (DS).

Cr-Ni-Mo austenitic SS (kg / m) S-wall thickness (mm).

D-Outside Diameter (mm).

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