Datong Hydraulic

  Hot rolled, cold rolled, cold drawn, cold finished? A lot of similar words you may hear, but what are they and what’s the difference? Many people call into Clifton Steel asking our veteran sales staff these very same questions. In short, the difference between hot rolled steel and cold rolled steel is the processing temperature. Hot rolled steel is, you guessed it, processed at a hot (semi-molten state) temperature.  Cold Rolled steel starts with hot rolled steel and is further refined by processing at room temperature. HOT ROLLED STEEL  The nice thing about steel is that it’s a fairly logical commodity. The names commonly used in the industry tend to tell users how it was made. Hot rolled steel is a prime example. As we said above, hot rolled steel is manufactured in a semi-molten state, which allows it to be formed into many different shapes. The term  hot rolled  can be used to refer anything from bar stock to sheet and plate. It means that the process used...

  42CrMo4 hard chrome plated rod  is mainly used for  hydraulic cylinder .The piston rod material 42CrMo4V hardened and hard chrome plated with the material number 1.7225 is suitable for heavy use and is especially wear-resistant thanks to its hardened surface layer with a surface hardness of 56–64 HRC. Due to the material's high stability very high forces can be transmitted, e.g. for small connecting threads with large  piston rods . The Advantages Of our 42Crmo4 Hard Chrome Plated Rod 1.Hard chrome plating means that an especially thick chrome layer is applied after the pre-honing and before finishing the honing process. The layer thickness depends on the rod diameter and has a hardness of more than 800 HV.  Hard chrome plated piston rods  can be used between -15°C and 200°C. 2.High quality raw material: our raw material mainly from some famous steel mills, such as TPCO, BAO STEEL, SHA STEEL, which are best and largest raw material manufacturer in China. ...