Carbon steel pipe is made of ingot or solid round steel through perforation to make a tube, and then hot rolled, cold rolled or cold drawn to make.

First, hot rolling method

Hot rolling method is one of the common methods in the manufacture of carbon steel pipe, which is suitable for the production of large diameter and large wall thickness steel pipe. In this method, the billet is heated to a certain temperature and rolled on the rolling mill, so that the billet gradually changes into a tube shape. The surface of the hot rolled pipe is rough, the internal grain is coarse, the strength is relatively low, but the toughness is good, and it is suitable for some low pressure and high toughness scenes.

Two, cold drawing method

Cold drawing method is to put the annealed billet into the cold drawing machine for drawing, and gradually refine the diameter of the steel pipe and reduce the wall thickness of the steel pipe under small deformation, the surface is smooth, and the strength and toughness are correspondingly improved. The cold drawing method is suitable for the production of precision steel pipes and high-precision mechanical parts.

Three, cold extrusion method

The cold extrusion method is to put the billet into a cold extrusion machine for extrusion, and make it into a steel pipe by deformation. The method has high machining precision, smooth surface and good linearity, but it is suitable for producing steel pipe with thin wall and can not bear large external load. It is suitable for some parts of precision instruments and electrical equipment.

Four, welding method

The welding method is to connect the cut and formed steel plates into tubes through the welding process. This method is suitable for the production of steel pipes of various specifications, and has the advantages of high strength and good surface smoothness. Common welding methods are electric welding, including arc welding, high frequency welding and gas welding.

Fifth, seamless steel pipe production method

Seamless steel pipe production method refers to the round steel as raw material, perforated and heated in the rolling machine to produce the pipe. Seamless steel pipe internal and external surface smooth, high processing precision, high strength, internal quality uniform and stable, suitable for the production of high pressure, large diameter steel pipe, such as oil, natural gas pipeline.

All in all, different production methods are suitable for a variety of different scenarios and needs. There are a variety of methods for the production of carbon steel pipes, and the steel pipes produced have their own characteristics and advantages and disadvantages. For consumers, it is necessary to choose the steel pipe suitable for their needs according to the specific situation.

peculiarity

1. Good mechanical properties

Carbon steel pipe has high strength, toughness and hardness, can withstand greater pressure, torsion bending is not easy to deformation or rupture.

2. Low price

The raw material price of carbon steel pipes is relatively low, and the manufacturing cost is low, so it is very common to use in different fields.

3. Simple production process

The production process of carbon steel pipe is relatively simple, without complex alloy manufacturing and special heat treatment, which reduces the production cost.

4. Strong corrosion resistance

Carbon steel pipe under the specified conditions, can withstand the erosion of a variety of corrosive media, has a good corrosion resistance.

In short, carbon steel pipe as an important industrial material, widely used in all walks of life, has many advantages, is an irreplaceable material.