Datong Hydraulic

  High pressure hydraulic steel tube   is designed to convey liquid fluids to among hydraulics components, fittings, valves, flanges, and other tools. It is made of material E355 (ST 52.4) or E235 (ST 37.4). These two grades have different chemical composition. This helps to control the working pressure.  The hydraulic steel tube is cylinder-like shaped tubing device that when attach to hydraulic systems, allow for the passage of fluids within and among components. The tube standard specifies dimensions for cold drawn finishing and ​ seamless precision steel tubes . Cold drawn process provides the hydraulic steel tube with close dimensional tolerances, increase material strength and enhanced machinability. Therefore, hydraulic steel tubes are suitable in high performance piping system application.  There are two type of material grade for high pressure hydraulic steel tube, ST52.4 and ST37.4.   ST52.4 is high tensile strength tube means it has higher permissible working pressures by re

  H8 Honed tube   is made of high precision steel tube by cold drawing or hot rolling, usually with steel grade ST52, in accordance with   DIN 2391   honed with ISO-tolerance range H8 on the internal diameter. Basic material for manufacturing   hydraulic cylinders   particularly suitable for the industrial, mobile and special applications sector. HOW TO MAKE H8 HONED TUBE The  cold drawn seamless tubes  surface finishing is NBK, where the tubes are phosphate and normalized which provides corrosion resistance. It is oiled inside and outside. Normalize process creates tougher metal product. During normalizing, metals will be heated at a high temperature, and it allowed to naturally cool back down to room temperature by exposure after heating. Metals that have been through this process are more formable, harder and ductile. H8 cylinder Tubes for Hydraulic Applications product overview Series Description: ISO H8 Cylinder Tubes, Inside Honed or Skived and Roller Burnished steel. Standards A

  Hydraulic piston shaft also can be called   hydraulic piston rod . It's a very important part. the product is mostly produced from   round carbon steel rods , by using high precision centerless grinding and polishing methods, and then chrome plated to a certain plating thickness such as min. 20 microns (0.0008″), min. 25 microns (0.001″), min. 50μm (0.002″) and so on. The two most common types of hydraulic chrome shafting used to make hydraulic cylinder rods . Chrome Plated Only, and IHCP stands for  Induction Hardened  & Chrome Plated. Chrome plated shafting is typically 1045 /4140 steel with a hardness of Rc15/19. IHCP is also 1045 steel, but achieves a surface hardness of Rc58/60 through the induction hardening process. It should be noted that induction hardening only effects the surface. THE DETAILS OF  DATONG  'S HYDRAULIC PISTON SHAFT Material : CK45, SAE1045,  4140 , 4340, JIS45C, 40Cr, 20MnV6, 42CrMo,SAE1518,SAE4145, SS431, SS430, Stainless Steel 304/316/2205, etc

  ST52 Cylinder Barrel  is well known as hydraulic cylinder tube in industries.  Honed Tubes , Skived & Roller Burnished Tubes are the most important material of manufacturing  hydraulic cylinders . Delivery Condition Of ST52 Cylinder Barrel Normal speaking , Annealing and normalizing of steel are two common heat treatment processes.The purpose of annealing and normalizing is to eliminate certain defects caused by hot processing of steel, or to prepare for the subsequent cutting and final heat treatment. As a professional cylinder barrel factory,  Datong Hydraulic  can do production with Delivery Condition: BK, BK+S, GBK, NBK. To keep the cylinder tube good working performance. Cold Finished(BK):  Honed Cylinder Tubes  do not undergo heat treatment following the final cold forming and thus, have a rather high resistance to deformation. Cold finished and stress-relieved (BK+S): Heat treatment is applied following the last cold forming process. Subject to appropriate processing condi