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  • Black Annealed Square Steel Pipe Rectangular Round - China

    price: 520.00 Dollar US$

    Name BLACK ANNEALED SQUARE STEEL PIPE RECTANGULAR STEEL PIPE ROUND STEEL PIPE

    Steel grade Q195, Q235B

    Outer diameter 15×15-300×300mm

    Wall thickness 1.2~14 mm

    Length 6m, 12m, or as customer's requirement

    Executive standard ASTM A500, EN10219, etc.

    Main application steel structure, building, etc.

    Payment terms L/C OR T/T ( 30% in advance )

    Delivery time As customer's requirements or normal delivery Contact Mr.

    Roger Cheng


    Company Contact:


    • Phone: 15602135951

    • Address: YOUYI , TIANJIN , TIANJIN , China

    • Email: Email


    Published date: August 18, 2019

    • Business Description: Tianjin United Steel Pipe, a high-tech HFW/ERW steel pipe producer, engaged in Manufacturing, R&D and Export Services.

      Main products include casing pipe, tubing, slotted liner and line pipes, compressor tube, transmission shaft tubes, torque tubes, piling pipes, sprinkler pipes, boiler pipes, and etc.

      Production standards include API SPEC 5CT, API SPEC 5L, JIS G3444, JIS G3452, ASTM A53/A53M, AS/NZS1163, AS/NZS1074, AS/NZS 1396, EN10217, EN10219, EN10255, UL852, GB/T9711, GB/T3091, GB/T13793, GB/T19830, YB/T5209, and SY/T5768 - With over 500,000tons annual production capacity, our company serves various fields and industries, such as oil & gas exploitation and transmission, ship & auto building, water & electricity, environmental protection, mechanical engineering, infrastructure constructions and etc.

      With State-of-the-Art Test equipmentand professional technicians, our Test & Inspection Center received “CNAS Laboratory Accreditation Certificate”, and also awarded “Tianjin Enterprise Technology Center” and “The Key Lab of Welded Pipe in Tianjin”.

      Furthermore, we have established“Academician Workstation” at our plant to serve welded pipe R&D, test & inspection, and technical exchange.

      Our company pays close attention to quality and safety management and we already obtained the certificates of ISO9001 Quality Management System, ISO14001 Environment Management System, and BS OHSAS18001 Occupational Health and Safety Management System.

      And also, the production certificates include API certificate, UL certificate, JIS certificate, and the manufacturing license of pressure pipeline.

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