





Precise Cold Rolled Seamless Steel Pipe
OD: 3mm ~ 90mm
Wall thickness: 0.5mm ~ 8mm
Tolerance: +/-0.1mm
Technique: Cold drawing/Cold rolling
Standard: ASTM A519, DIN2391, SAE J524, EN10305-4, GB/T3639
Steel material: E355, E235, 10#, 20#, Q355B, etc
Delivery state: BK, BKW, NBK, GBK, BKS
Usage: Widely used for mechanical processing, automobile industry, hydraulic equipment
Advantages:
- Smaller caliber
- Accept small quantity orders
- Good surface treatment
- Superior performance suitable for mechanical applications
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)
Company: Zhangjiagang Shengdingyuan Pipe-Making Co., Ltd.
Discover our High Pressure Steel Tube for Hydraulic Applications. Precision-crafted for durability and efficiency. Get yours today!


Shengdingyuan Pipe-Making Co., Ltd.
Welcome to Shengdingyuan Pipe-Making Co., Ltd.
Shengdingyuan is a leading equipment enterprise specializing in the research and development of high Precision Cold Drawn Seamless Steel Tubes and High Pressure Fuel Tubes. Our company is located in Zhangjiagang City, along the Yangtze River, with a vast land area of over 15000 square meters and total assets exceeding RMB80 million.
Key Features:
- Cold Drawn High Precision Seamless Steel Tubes
- Hydraulic System Brightness Fuel Tubes
- Diesel Engine Common-Rail High Pressure Fuel Tubes
- Black Phosphated Hydraulic Tubes
- High Pressure Seamless Square Tubes
Applications:
Our products are widely utilized in various industries including industrial equipment, hydraulic systems, automotive, marine vessels, diesel engine high pressure common-rail systems, engineering machinery, fabric equipment, heat exchangers, and chemical machinery.
Production Capacity:
With continuous efforts in development, our annual output has reached over 8000 tons, ensuring a reliable supply for our customers.
