Datong Hydraulic

 Stress released is a technique method usually for cold drawn seamless tube and honed cylinder barrel production process. With focus on the Hydraulic Cylinder Industry the following components are made by a Cold Drawing process: Cylinder Tube Cylinder Piston Rods When a 75,000 PSI minimum yield strength is specified for the design of parts in hydraulic and pneumatic cylinder there are several options for the material that will meet this regular specification. a) Cold Drawn Cylinder Tubes – both welded or seamless Grades : E355 , AISI-1020 or AISI-1026 b) Cold Drawn Round Bars used for producing Piston Rods Grades : 1045 to ASTM-A311 or 38MnVS6 For both products is strongly recommend after the Cold Drawing a further annealing process by stress relieving.  The temperature and the time of permanence in the furnace depends on the steel grade of the product and also the cooling temperature and the time is extremely important to achieve the expected result. Cold Dra...

  Datong Group as a professional manufacturer of cylinder tube and cylinder piston rod ,We stock the largest range of Honed Cylinder Tubes & Unhoned Cylinder Tubes with imperial size and metric size. These steels are derived from a range of leading manufacturers from China like BaoSteel. There are key types we stock: Finished (Honed) Tubes – Honing process / SRB: Skived and Roller Burnished. Semi-finished (Unhoned) Tubes are Made from ST52 Drawn over mandrel & Cold Drawn Seamless Honed Cylinder Tube: Hot Finished E355. Advantages Of Datong Group Cylinder Tube 1, High precision tolerances; Our honed steel tube can meet ID tolerance H7, H8, H9, … etc according to the customer’ requirements, and its I.D dimension. 2, Seamless tube with high pressure resistance; We only use seamless cold drawn tubes to produce honed pipes, which means our honed tubing can work under higher pressure, thus our honed pipes are more reliable for hydraulic cylinder applications. 3, High Smooth...