dn600 carbon steel pipe Seamless steel pipe 10# 20# 35# 45# 16Mn 27SiMn 40C

Carbon steel tubes are made of ingot or solid round steel through perforation
to make capillary tubes, and then made by hot rolling, cold rolling or cold
drawing processes. This kind of pipe occupies an important position in the
steel pipe industry in our country.



Manufacturing process



Perforation process: The ingot or solid round steel is heated, and the
perforator is pierced into a capillary tube, which is the first step in the
production of carbon steel tubes.

Hot and cold rolling: The tube is hot rolled or cold rolled to achieve the
desired wall thickness and outside diameter. Hot rolling is typically used for
thicker tubes, while cold rolling is suitable for thinner, more precise
applications.

Cold drawing process: In order to obtain higher dimensional accuracy and
surface finish, some carbon steel pipes will also go through the cold drawing
process.

Classification type



According to the classification of welding performance: carbon steel pipe can
be divided into welded steel pipe and seamless carbon steel pipe. The welded
steel pipe is rolled into a tube through the welding process, and the seamless
carbon steel pipe is made through the above perforation, hot rolling and other
processes, and there is no weld.

According to the classification of carbon content: according to the different
carbon content, carbon steel pipes can be divided into low carbon steel pipes,
medium carbon steel pipes and high carbon steel pipes, different carbon content
of steel pipes in hardness, strength and toughness are different.

Application field



Construction industry: carbon steel pipes are widely used in building
structures, scaffolding, etc., providing good support and connection.

Industrial production: In the petroleum, chemical, electric power and other
industries, carbon steel pipes are used to transport fluids and gases, and are
an important part of industrial pipeline systems.

Transportation: Carbon steel pipes are also used as structural components in
automobiles, ships and railway vehicles, improving the safety and durability of
vehicles.

Price quotation



Market price: The price of carbon steel pipe is affected by many factors such
as raw material cost, market supply and demand, and international trade policy.
Wholesale prices provided by e-commerce platforms such as Alibaba can provide a
reference for buyers.

Specifications: There are differences in the price of carbon steel pipes of
different specifications, such as DN300, DN400 and other pipes of different
diameters.

Quality standard



National standards: The production and use of carbon steel pipes must meet the
relevant national standards, such as GB/T3091-2015 "Welded steel pipe for low-
pressure fluid transportation" and so on.

Quality control: Manufacturers need to carry out strict quality control in the
production process, including chemical composition testing, mechanical
performance testing, dimensional accuracy measurement, etc., to ensure that the
quality of carbon steel pipes meet the requirements of use.

Future development trend



Technological innovation: With the advancement of manufacturing technology, the
production of carbon steel pipes will be more automated and intelligent,
improving production efficiency and product quality.

Green production: The improvement of environmental protection requirements will
prompt carbon steel pipe manufacturers to adopt more environmentally friendly
production processes to reduce energy consumption and emissions.

Carbon steel pipe, as a basic industrial material, plays an important role in
many fields. Its production and application need to follow strict standards and
specifications to ensure safety and performance. In the future, with the
development of technology and changes in market demand, the production and
application of carbon steel pipes will continue to optimize and innovate.

Minimum Order: 1 tons

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