Suzhou Seamless Steel Tube Works was founded in 1988, invested by Bao Steel. It is now belong to Double Gold Enterprise. With 20 years professional practice in seamless steel pipe industry, the mill has been well recognized and respected by its clients, industrial fellows and 3rd party inspection organizations for its excellence in both products and services. We offer a wide range of seamless tube products, 80% of them were exported to 52 countries and regions all over the world.

Quality Management:

Certificates: ISO 9001:2000 (No.QAC0051022)

PED(No.QAC0051022/A)

ISO/TS 16949:2002 (No.QAC0051022/B)

API(No.5CT-0810,5L-0566)
Suzhou Seamless Steel Tube Works is equiped with a professional quality management team that monitors the entire process from material check to finished product tests. We regard quality as our first priority, we set up a complete process control system to ensure that every pipe we produce is of good quality. And we will continue pursuing quality excellence by investment in R&D and process improvement. We will apply for more national and international quality system certificates to meet the requirements of our customers

Main Products: Boiler Tubes(Carbon Steel & Alloy Steel)

Tubes for Heat Exchanger

Tubes for Automotive

Precision Tubes

Tubing and Casing,Line Pipes

Tubes for Ship-building

Tubes for Fluid Transportation

Rifled Tubes

Manufacturing Process: Billet Inspection →Scale Removal →Acid Clean →Billet Cutting →Heating →Piercing →Forming Head →Acid Picking,Phosphating,Saponification →Cold Drawn →Heat Treatment →Mechanical Properties Inspection →Straghtening →Cutting Ends →Surface Treatment →Finish products Inspection(Dimension and surface check,Eddy Current Test,Ultrasonic Test,Hydrostatic) <span lang="EN-US" style="font-size: 12pt; color: black; font-family: 'Trebuchet MS'; mso-fareast-font-f