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BLACK PIPE (10).jpg
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China manufacture 50*50mm square pipe steel black pipe for sale

1.Standard: ASTM A53, BS1387, ISO65, EN10219, JIS, Q195, Q235

2.Size: From 10*10mm to 400*400mm

3.Thickness: 0.2-20mm

4.Tolerance: +/-2%

5.Place of origin: Tianjin, China

6.Delivery Time: 7-10 days in stock,about 30 days for customized

    Contact us

    Specification

    Product name

    Black square Pipe

    Standard

    ASTM A53, BS1387, ISO65, EN10219, JIS, Q195, Q135

    Length

    Standard 5.8m and 6m or as customer requirement

    Size

    From 1/2'' to 20''mm

    Thickness

    0.3-20mm

    Technical

    Hot rolled,cold rolled

    Tolerence

    +/-2%

    Product Advantage

    1.Easily corroded
    Although the oxide layer on the surface of black steel pipes can prevent corrosion, it is particularly susceptible to corrosion if it is exposed to moisture or corrosive chemicals, putting water and gas pipelines at risk of leakage and contamination. Therefore, black steel pipes must be regularly maintained and anti-corrosion measures taken during use.

    2.Rough inner surface
    During the forming process of black steel pipes, the steel pipe blanks will go through processes such as perforation and rolling. These processes will produce a certain roughness on the inner surface of the steel pipe. This will reduce the flow rate of gas or liquid in the pipeline and increase energy consumption and costs. At the same time, this also makes it easy for sediments to form in the pipeline, causing blockage.

    BLACK PIPE (5)BLACK PIPE (2)

    APPLICATION

    One of the main benefits of black steel pipes is their ability to withstand high temperatures and pressure. This means that they can be used in a variety of applications where high-temperature and high-pressure conditions are present, such as in the oil and gas industry, chemical processing plants, and power generation facilities.

    wechat_2025-06-19_154532_477wechat_2025-06-19_154706_674wechat_2025-06-19_154827_441Application (5)

    Packing &Shipping

    Steel strip baling is divided into galvanized steel strip and black steel strip.Galvanized steel strips are used for galvanized products, and black steel strips are used for black pipes. 3. Bulk is suitable for retail and pipes of different lengths.

    Package
    1

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