Do You Know The Use Of Seamless Steel Pipe?

Find here details of P9 Seamless Steel Pipe on our website. Today we would like to talk about the use of seamless steel pipe.

Seamless steel tubes have hollow sections and are used in large quantities as pipes for transporting fluids, such as pipes for transporting petroleum, natural gas, gas, water and certain solid materials. Compared with solid steel such as round steel, the steel pipe is lighter in weight when it has the same bending and torsional strength. It is an economical section steel and is widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipes, automobile transmission shafts, bicycles. Steel frames and other steel scaffolding used in construction are used to manufacture ring-shaped parts, which can improve the material utilization rate, simplify the manufacturing process, save materials and processing man-hours, and have been widely used in steel pipes.

The following points are shared by professional P9 Seamless Steel Pipe Supplier:

(1) Structural seamless steel pipe and conveying pipe are also. Including low carbon steel, medium carbon steel and alloy structural steel tube billet, steel number is 10#, 20#, 35#, 45#, and 15Cr, 40Cr, 30CrMnSi, 12CrMoV, etc.

(2) Boiler tube blank. Generally, the steel for boiler tube blanks is low carbon steel and high quality carbon structural steel. For example, 10#, 20#, 20A, in order to mark the steel for boiler tube billet, you can add “pot” or “G” after the steel number, such as 20 pots or 20G.

(3) Oil drilling and geological drilling pipe blanks. Such steel for tube blanks includes medium carbon steel, low alloy steel, and alloy steel. This type of pipe is also delivered in steel grade according to mechanical properties, and is written with "DZ" before the steel number, such as DZ55, DZ80.

(4) Fertilizer and fertilizer pipe blanks. Steel for chemical equipment and pipe pipe blanks, such as carbon steel, heat-resistant and acid-resistant stainless steel, such as 20#, 1Cr18Ni9Ti; carbon steel and alloy steel for petroleum cracking pipes, such as 10#, 20#, 12Mn2, CrSMo, 12CrMoV; Pipe steel has carbon steel and alloy steel, etc.

(5) Other special tube blanks.

Qualified tube blanks are a prerequisite for the production of cold drawn seamless steel tubes. Due to the deformation characteristics of the cross-rolled perforations, strict technical requirements are imposed on the tube blank (especially in the surface quality).

According to the ministerial standard, there are certain technical requirements in terms of size, surface quality, and structure for billets made of high-quality round steel.

(6) Geometric dimensions and allowable deviation of cold drawn seamless steel tube blanks.

Tube blank diameter and allowable deviation:

When the diameter of the blank is 75 mm, the allowable deviation is +1.0-0.5 mm;

When the diameter of the tube blank is 80-90 mm, the allowable deviation is +0.8 to 13 mm;

When the tube blank is 95-120 mm in diameter, the tolerance is +1.0-1.7 mm.

Tube length: generally 23-6 meters (according to mutual agreement).

Bending: The local bending is not more than 10 mm per meter without straightening equipment, and the total bending is not more than 10% of the total length.

Tube blank head chamfer:

When the diameter of the pipe is not more than 96 mm, the inclination is less than 6 mm;

We also have SA213 Seamless Steel Pipe. If you need any information about it, feel free to contact us.