Carbon Steel Pipe Welded Hot Rolled Seamless Steel Pipe

Carbon Steel Pipe Welded Hot Rolled Seamless Steel Pipe

Carbon Steel Pipe
Carbon steel pipe is a strong material widely used in many industries. It is mainly divided into two types: hot rolled and cold rolled (drawn).

Hot Rolled Carbon Steel Pipe:

Manufacturing process: Hot rolled carbon steel pipe is made by heating the steel above the recrystallization temperature (about 926°C to 1400°C) and rolling it. This process can destroy the cast structure of the steel billet, refine the grains, and eliminate microstructural defects, thereby improving the mechanical properties of the steel.

Advantages:
High strength: The hot rolling process refines the grains of the steel and improves the mechanical properties, especially in the rolling direction.
Cost-effectiveness: The hot rolling process is relatively simple, low-cost, and suitable for large-scale production.
High customization: Pipes of different sizes and shapes can be customized according to customer needs.

Cold Rolled/Drawn Carbon Steel Pipe:

Manufacturing process: Cold rolled (drawn) carbon steel pipes are rolled or drawn below the recrystallization temperature. This process can further improve the dimensional accuracy and surface finish of the pipe.

Advantages:
High precision: high dimensional accuracy and good surface finish, suitable for equipment requiring high precision.
Good corrosion resistance: The cold rolling process makes the pipe surface smoother and reduces the possibility of corrosion.

Hot Rolled Seamless Steel Pipe
Hot rolled seamless steel pipe is a steel pipe without welds, which is manufactured through a high temperature rolling process.

Manufacturing process:

Bill heating: The billet is heated to a high temperature state.

Piercing: The billet is punched into a hollow rough tube by a piercing machine.

Rolling: The rough tube is rolled into a steel pipe of the required size through multiple rolling passes.

Cooling and sizing: Sizing treatment is performed after cooling to ensure the dimensional accuracy of the pipe.

Hydrostatic test: Hydrostatic test is performed to ensure the sealing and strength of the pipe.

Advantages:

High strength: Hot rolled seamless steel pipe has high strength and good mechanical properties, and can withstand high pressure and high temperature.

No leakage: The seamless design ensures that the pipe will not leak during use, and is suitable for conveying liquids and gases.

Cost-effectiveness: The manufacturing process is relatively simple, the cost is low, and it is suitable for large-scale production.

Application areas
Hot-rolled carbon steel pipes:
Construction industry: used for building structures, brackets and frames.
Oil and gas industry: used to transport oil, natural gas and coal gas.
Chemical industry: used to transport chemical liquids and gases.
Shipbuilding: used for ship structures and piping systems.
Hot-rolled seamless steel pipes:
Oil and gas industry: used to transport high-pressure gases and liquids.
Chemical industry: used to transport high-temperature and high-pressure chemical media.
Construction industry: used for building structures and supports.
Shipbuilding: used for ship piping systems and junctions.

Standards:
GB/T 8162/8163: Chinese national standards.
ASME B36.10: American Society of Mechanical Engineers standard.
ASTM A106/A53: American Society for Testing and Materials standard.
API 5L/5CT: American Petroleum Institute standard.
DIN: German Industrial Standard

Product Image

    Cangzhou Baoyang Pipeline Equipment Co., Ltd. is located in Hope New District, Mengcun County, Hebei Province, China's pipeline equipment base. The company was founded in 2018 with a registered capital of 10 million yuan. It is an enterprise integrating steel pipe spot warehousing, pipe fittings production, sales and export. Our company mainly deals in seamless pipes of special materials, and has long-term and good cooperative relations with major steel mills such as Tianjin Seamless, Hengyang Valin, Yantai Lubao, Inner Mongolia Baosteel, Shanghai Baosteel, Jiangsu Chengde, Anhui Tianda, etc.

Factory Overview

    The company's products are widely used in engineering projects such as oil, natural gas, chemical, coal gas, long-distance thermal steam, and water pipelines. The products are sold all over the country and exported to India, Vietnam, Iran, Iraq, Australia, Nigeria, Canada, Turkey, Spain, Germany, the Netherlands, etc., and have been well received by customers and achieved good economic and social benefits.

    The company adheres to the business philosophy of "technology to develop enterprises, precision and truth-seeking, unity of purpose, and peace and far-reaching", and always takes "customer first, service first, sincere reputation" as its purpose, and strives to build a modern and fast-service enterprise.