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zhejiang dingxin steel tube manufacturing Co.,Ltd

We are a factory in China, professionally manufacture & supply cold-drawn and cold-rolled precision seamless steel tubes. They are widely used in automobile (cylinder sleeve, liner, camshaft, bushing, bearing, & other car parts made from tubes), hydraulic & pneumatic cylinder, hydraulic jack, mechanical machine components, shipbuilding, geological drilling, nuclear station, etc.

Main Standard: DIN 2391, EN 10305-1, ASTM A519, A192, A513-5, A 106, GB/T3639, BS6323, JIS, DIN1629, DIN17175.

Main material: Grade 10, 20, 35, 45, ST35, ST37(E235), ST45(E255), ST52(E355)(16Mn), 1010, 1020, 1026(25Mn), 1035, 1045(S45C), 4130, 4140, C45, C35, 20Cr(20Cr4)(5120), 40Cr(41Cr4)(5140), 30CrMo(4130), 34CrMo4, 35CrMo(4135), 42CrMo(4140), 42CrMo4, 38CrMoAl(38XMIOA), Gr. B, or custom made.

Delivery condition: BK(+C), BKW(+LC), BKS(+SR), GBK(+A), Q&T, NBK(+N).

Size: O.D. 10 to370 mm (0.4 in to14.6 in ), W.T. 1 to32 mm (0.04 in to1.26 in).

Output: 25,000 tons / year.

Certificate: ISO9001:2008, TS16949:2009.

Factory: 24,000 square meters. Located inJiaxing,Zhejiang, 100 kilometers fromShanghai.

Fully equipped state-of-the-art equipment: including piercing equipment, bright annealing furnace (NBK), 17-roller large straightening machine (achievable straightness<=0.4/1000mm), big bogie-hearth resistance furnace (BKS), chain draw bench, 250T hydraulic draw bench, cold-rolling mill, CNC equipment, non-destructive testing equipment, chemical analysis, mechanical properties testing equipment, etc.

Customers are from US,Canada,Australia,South Korea,Turkey,India,Brazil,Argentina,Sweden,Italy, etc.


Bao Steel ST45 SAE1020 Precision Tube for Automobile Cylinder Liner Sleeve;

Precision Seamless Tube suitable for Auto Spare Parts and Motorcycle Parts;

DIN2391 ST52 Ready To Hone Tube for Hydraulic and Pneumatic Cylinder;

ASTM SAE 1045 Precision Steel Tube for Hydraulic Jack;

Alloy Seamless Pipe for Geological Drilling, ASTM SAE 4130, 4135, 30CrMo, drill pipe.


Contact us today, sales04 [at] dingxintube [dot] cn, Mobile:+86-15669301195, Skype:lisa204299.


Key words: Alloy & Carbon Seamless Steel Pipe, Precision Steel Tube, Hydraulic Tube, Automobile Tube, Mechanical Tube.

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Contact Details

Contact person:Lisa Hsu

Country:China (Mainland)



Street address: Liuli industry Zone





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