TianZhu® was founded in 2013, Jinshanbei industrial park, no. 90 huian road, wuxi city, China, the starting point of new "Belt and Road" and the old Silk Road, as a leading Manufacturer and Supplier of Steel Pipe and Special Alloys, TianZhu® has been insisting on creating value for customers, always adhering to the development strategy of "supplying high-end products, establishing world-renowned enterprise" to provide global customers with superior quality products and high-quality services. Through the resource integration of a variety of metal materials, TianZhu® has become one of the biggest METAL SUPERMARKETS and can provide all kinds of special metal materials that are made in China and imported to our customers.

  Our product range:

  Stainless Steels

       Stainless steel is the abbreviation of stainless steel acid resistance, resistance to air, steam, water and other weak corrosive medium or stainless steel is called stainless steel; And will be resistant to chemical corrosion medium (acid, alkali, salt and other chemical etching) corrosion of steel known as acid resistant steel.

  (304/L/H/N/LN, 316/L/H/Ti//N/LN/LMod, 321/H, 347/H, 317L/N, 310S, 310MoLN, 309S/H, 253MA, 904L, S31254, S31277, XM-19, S31803, S32205, S32750, S32760, S31500, S32304, S38815, S44660, 15-5PH, 17-4PH, 440C)

       Carbon steel

       Carbon steel is an iron-carbon alloy with a carbon content of 0.0218%~2.11%. Also called carbon steel. They also contain small amounts of silicon, manganese, sulfur, and phosphorus. Generally, the higher the carbon content in carbon steel is, the higher the hardness is, the higher the strength is, but the lower the plasticity is.


Company Profile

Quality Control



  TianZhu® Steel since its establishment in the 2014 has focused on the steel industry and exported a complete range of steel products to all over the word for over ten years.

  In the pipe & tube unit, our cooperative factory has the latest production facilities that can cover all products, and more specifically on the seamless pipe and pipe fittings.

  In addition, the comprehensive unique capability of TianZhu Steel include application technologies and construction technologies varying from high-grade pipes for lines, oil wells, and power generation, ect., to general pipes & tubes such as those for piping and structures.

Independence Inspection


  State of the art lab with a full range of mechanical and chemical test capabilities allows our team to manage a variety of quality control procedures in the production process at regular intervals.

  The pipe is subjected to various tests and inspections to confirm that it meets customer and industry specifications from raw material to finished products. Quality Control inspectors are committed to check and monitor strictly the quality from each stage of process.

  Using the aforesaid test results, the manufacturing group can make immediate judgments of process condition and take any necessary action to insure desired product performance.



  Supporting by our strong personnel QC, the product’s quality is always guaranteed. Our products are 100% inspected before being packed and dispatched. We also accept any Third Party of Inspection appointed by our customers, such as Lloyd's Register, TUV, DNV, BV, SGS, IEI, SAI etc. Quality assurance is carried throughout the process from the raw material purchasing to processing, packing, storage and transportation. Every process strictly conforms to the ISO 9001:2008. "Quality and Reasonable Price “is our promise to global customers.

Third Party Inspection


  Third party inspection that is preferred by new customers are proved to be convincing. Through years' of operation, M/S Chengdu Derbo has established stable contact with world famous third party inspection authorities like BV, SGS, INTERTEK, etc, and more than 5000M.Tons of steel pipes/tubes from Chengdu Derbo have been inspected by them.

  In M/S Chengdu Derbo, we provide accurate inspection equipment & device and necessary service for sample preparation for third party inspectors.

  M/S Chengdu Derbo has almost all kinds of inspection & test equipment & device for general tests like size & size tolerance check, tensile test, hardness test, flattening test, expanding test, ECT, UT, hydrostatic test, impact test, etc.

Trace ability


  Traceability includes information on each pipe segment, pipe joints, valves and manufactured bends. Detailed information is stored, such as the manufacturer of a part, the facility of origin, date and time the part was manufactured, the source of the steel and any noted defects. The data goes even deeper, though. Take a weld, for example. The software will have the number of the weld, its specific GPS location, the date it was performed, the name of who performed it, the type, weld procedure specification, the installation contractor, the weld qualification report, the name of the non-destructive examination contractor who tested it, the results of NDE and if the weld was ever repaired or cut out. Why It Matters The in-depth information gathered through a traceability initiative is critical to avoid production and safety issues. Traceability programs are important in the testing of the pipeline. Historically, field operators had little information on the materials and construction or repair process of the pipeline, but now, the electronically gathered and stored information is available to them. The program also stores data generated by the testing, which is crucial to documenting the system and planning for future construction.