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ASTM Carbon Round Black Seamless Tube & Carbon Steel Tube Supplier

Carbon steel seamless pipe is a common steel material widely used in petroleum, natural gas, chemical industry, electric power, aerospace and other fields. Our carbon steel seamless pipes have high strength, excellent corrosion resistance, sealing properties, a variety of specifications and sizes available, and are easy to process and install.
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  • Carbon Steel pipe

  • ZHONG RUN

Product Description

StandardASTM A213 T5 A209 T1 A335 P11 P22 P5 alloy steel pipe
Material15CrMoG,12Cr2MoG,12Cr1MoVG,12Cr2MoWVTiB
CertificatesISO 9001:2008 /TUV /SGS /BV etc
Outside Diameter1/2'--24'
32mm-630mm
ThicknessSCH5S, SCH10S, SCH20S,SCH20, SCH30,STD, SCH40,
SCH60, SCH80, SCH100, SCH140, SCH160,XS,
1.65mm-59.54mm
Length5.8m 6m Fixed, 12m Fixed, 2-12m Random.
Technic1/2'--6': hot piercing processing technic
6'--24' : hot extrusion processing technic
Surface TreatmentBlack Painted, Galvanized, Natural, Anticorrosive 3PE coated,polyurethane foam Insulation


Product Show

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seamless carbon steel pipe

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carbon steel tube

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carbon steel pipe

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carbon pipe

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carbon seamless steel pipe

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low carbon steel pipe


Production Flow

zhong run steel


Carbon steel seamless steel pipe production process

  1. Raw material preparation:

    First, select appropriate carbon steel materials, such as carbon steel plates or steel billets as raw materials. The raw materials are then subjected to pre-processing processes such as cutting, trimming and cleaning.


  2. Heating and perforation:

    The pretreated carbon steel material is heated to the appropriate temperature, usually using induction heating or resistance heating. The heated material is punched through a punch to form the initial shape of a seamless tube.


  3. Hot rolled or cold drawn:

    Hot rolling is a process of continuous rolling of the perforated tube blank to further process and change the size and shape of the tube blank. Cold drawing uses a drawing machine to cold-process hot-rolled tube blanks to obtain higher dimensional accuracy and surface quality.


  4. Heat treatment:

    Heat treatment is to anneal or normalize the cold drawn pipe to improve its mechanical properties and structural organization.


  5. Pickling and cleaning:

    After heat treatment, carbon steel seamless pipes need to be pickled to remove surface oxides and impurities. Then clean it to ensure the surface of the pipe is clean and smooth.


  6. Inspection and Quality Control:

    Strict inspections are conducted on the carbon steel seamless pipes produced, including appearance inspection, dimensional measurement, chemical composition analysis, mechanical property testing, etc., to ensure that the products comply with relevant standards and requirements.


  7. Steel pipe marking and packaging:

    According to customer requirements, qualified carbon steel seamless pipes are marked, including marking steel pipe specifications, batch numbers, production dates and other information. Then it is packaged. Common packaging methods include bare tubes, plastic casings, wooden box packaging, etc.


  8. Factory and delivery:

    Finally, the packaged carbon steel seamless pipes are shipped or transported to ensure that the products are safely delivered to customers.


Advantage

carbon steel pipe (1)

High Strength

Carbon steel seamless pipes have high strength and can withstand working conditions in high pressure and high temperature environments.

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Corrosion resistance

Carbon steel seamless pipes have been specially treated to have good corrosion resistance and can resist corrosive media such as acids, alkalis, and salt water.

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Seamless performance

Carbon steel seamless pipes adopt a seamless production process, and their seamless structure gives them better sealing and pressure resistance.


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Zhongrun Steel (Foshan) Co., Ltd. is located in the beautiful Foshan City, Guangdong Province. It has 25 years of production and sales experience, exported to more than 30 countries, and has more than 500 cooperative customers.

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