Datong Hydraulic

  40Cr steel  is a kind of Chinese GB standard alloy steel for engineering and machinery purpose, and one of the most widely used steel grades. For 40Cr material hardness, specifications and equivalent, please see the table below. After quenching and tempering treatment, 40Cr steel has good comprehensive mechanical properties, low temperature impact toughness, low notch sensitivity, good hardenability, and high fatigue strength in cold oil. When water cooling, the complicated shape of the parts is prone to cracks, the cold bending plasticity is medium, and the cutting workability after normalizing is good, but the weldability is poor, should be preheated before welding, and is generally used in the state of quenching and tempering. DATASHEET & SPECIFICATION The tables below list 40Cr alloy steel datasheet and specification including chemical composition, properties and heat treatment, etc. 40CR STEEL CHEMICAL COMPOSITION   Chemical Composition (%) Grade C % Si Mn Cr 4...

The ST 52 belongs to a standard structural steel grade. A  St 52 Steel Plate   is designed with a superior chemical composition of carbon, silicon, manganese, phosphorous, and sulfur. The content embedded in these plates gives them enhanced resistance to corrosive and oxidative media. The St52 Plate is designed for thickness above 6mm and more. These plates have enhanced resistance to pitting and crevice corrosion. They provide good stability and support to different applications. St52-3 Plate is a low manganese carbon grade that doesn’tputs pressure on subsequent modules. These robust plates can be easily welded in place following standard procedures. The versatile St52 3 Steel showcase slightly lower strength and tolerance compared to an St52 plate. These lightweight components comply with different national and international standards. The St52 Steel Sheetis produced in thicknesses below 6mm and above 0.5mm. These sheets don’t provide stability and add an aesthetical appeal...

  An important factor that when manufacturing   hydraulic cylinder tube and rod ,the quality of steel materials.   Datong Hydraulic   work with the best materials for durable, high performance hydraulic cylinder tube and rod. Ideal properties for hydraulic cylinder materials include resistance to wear and corrosion, light weight, machinability, and low cost. Here are some of the most commonly used materials: STAINLESS STEEL TYPE 304 Type 304 Stainless is one of the most widely used materials in  hydraulic cylinder barrel  and piston rod. Type 304 Steel is not only resistant to corrosion but is also easily available and environmentally friendly. Stainless steel 304 is durable in acidic environments and does not wear easily. TITANIUM ALLOY GRADE  When used to manufacture hydraulic cylinders, titanium grade provides corrosion resistance and impeccable strength. It is also easy to machine or form, and is relatively lightweight for its strength - one of the...

  Hydraulic cylinder  is basically composed of  cylinder barrel  and cylinder head, piston and  piston rod , sealing device and so on, if we want to strengthen its performance how to do it? 1. Using NUMERICAL control electro-hydraulic servo valve to control hydraulic cylinder can realize linear and real-time control of output, so as to improve the performance of hydraulic cylinder; 2, the cylinder has strength, can withstand dynamic working pressure, long time working without deformation; 3, stiffness, under the piston side force and installation reaction force will not bend; 4, less friction between the inner surface and guide parts and seals, can be used for a long time; 5, cylinder and flange to good welding, no cracks. 6, to correctly install the sealing device around the  hydraulic cylinder : pay attention to the installation direction when installing the sealing ring, to avoid oil leakage due to the installation, the lip should deal with the pressure ...

  Case hardening is a method of hardening an iron alloy that generally has too little carbon in it to undergo sufficient hardening throughout the material. This is usually about 0.5% carbon at the lower limit. Additional carbon-bearing material is packed around the part, then heated until the low-carbon steel becomes a solid solution, allowing the surrounding carbon outgassing from the heated carbon-bearing material to dissolve into the steel to a degree, not unlike dissolving sugar into hot water. Being a solid, and a metal at that, carbon can only dissolve into a low-carbon steel to certain depth, typically no more than 100–200 micrometers. This gives a case-hardened part good surface hardness, but the interior of the part will not harden as well, or at all, depending on the material used. Induction hardening  isn’t really a chemical process like case-hardening, at least not in the same way. Induction hardening uses alternating frequency passing through a coil (the primary) ...