High-Precision Cold Rolled Seamless Steel Pipe
Company: Zhangjiagang Shengdingyuan Pipe-Making Co., Ltd.
Specifications:
- Outer Diameter (OD): 3mm ~ 90mm
- Wall Thickness: 0.5mm ~ 8mm
- Tolerance: +/-0.1mm
- Technique: Advanced Cold Drawing/Cold Rolling
- Standard Compliance: ASTM A519, DIN2391, SAE J524, EN10305-4, GB/T3639
- Steel Materials: E355, E235, 10#, 20#, Q355B, and more
- Delivery State: BK, BKW, NBK, GBK, BKS
Usage:
Extensively used in mechanical processing, automotive industry, and hydraulic equipment.
Advantages:
- Suitable for Smaller Caliber Applications
- Accepts Small Quantity Orders
- Excellent Surface Treatment
- Superior Performance Ideal for Mechanical Manufacturing
Delivery Condition:
- Cold Drawn/Hard (+C) (BK)
- Cold Drawn/Soft (+LC) (BKW)
- Cold Drawn and Stress Relieved (+SR) (BKS)
- Annealed (+A) (GBK)
- Normalized (+N) (NBK)
- Quenched and Tempered (QT)
Welcome to Zhangjiagang Shengdingyuan Pipe-Making Co., Ltd.
Discover the Excellence of Our Precision Cold Drawn Steel Tubes at Unbeatable Factory Prices. As a Premier Manufacturer of Hydraulic and Automobile Pipes, we deliver tailored solutions designed for durability and reliability. Partner with us, your trusted exporter of Superior Quality Steel Tubes.


Welcome to Zhangjiagang Shengdingyuan Pipe-Making Co., Ltd.
Zhangjiagang Shengdingyuan Pipe-Making Co., Ltd. is a distinguished enterprise dedicated to the innovation and production of high-precision Cold Drawn Seamless Steel Tubes and High-Pressure Fuel Tubes. Nestled in the picturesque Yangtze River region, our expansive facility covers more than 15,000 square meters and boasts assets exceeding RMB 80 million.
Since its inception in 2007, Zhangjiagang Shengdingyuan has been at the forefront of pipe-making excellence, offering an extensive portfolio that includes Cold Drawn High Precision Seamless Steel Tubes, Hydraulic System Brightness Fuel Tubes, Diesel Engine Common-Rail High-Pressure Fuel Tubes, Black Phosphated Hydraulic Tubes, and High-Pressure Seamless Square Tubes. Our products serve a multitude of industries, from equipment manufacturing and hydraulic systems to automotive, marine, common-rail diesel engines, engineering machinery, fabric equipment, heat exchangers, and chemical machinery. With an impressive annual output exceeding 8,000 tons, we consistently deliver top-tier products to meet the demands of our valued customers.









