Piping for Hydraulic Cylinder is generally used in hydraulic equipment and mechanical structure, which has high precision and the smoothly surface, also known as honing tube.

Grade

20#, 25#, 35#, 45#, 30Mn2, 27SiMn, Q345, E355, E470, etc.

Product standard (corresponding to the national standard, American Standard, European standard, German standard, Japanese standard, and the Mill standard)

BS EN 10297-1:2003  

BS EN 10305-1:2002 < Technical specification of cold processing precise pipe >

GB/T 8163-2008

Mill standard, technical agreement

Product features (such as performance, accuracy, etc.)

Dimensional accuracy: cylinder wall thickness tolerance, uneven wall thickness, OD Tolerance, and small ovality.

Surface quality: Through the plug and mandrel, and the furnace temperature to control pipe inside and outside surface, which can be better control tube pitted, oxide skin of macro defects, and can be better meet customers’ requirements of cylinders’ surface quality after grinding.

Mechanical properties: the mechanical properties of each material by hot rolling process or heat treatment process can meet the requirements of BS EN 10297-1:2003 and GB/T8163-2008 standard on the mechanical properties of materials.

Other: according to customer needs,E355 and E470 materials can be added the quality score of 0.020%~0.045% sulfur element,which to improve the cutting performance of the cylinder pipe and reduce the consumption of the customer.In view of the large diameter piston cylinder on the market, according to customer needs, can provide the end thickening cylinder tube billet and reduce customer cutting volume.

Service environment (such as temperature, pressure, corrosive media, etc. )

20#, 25# Piping for Hydraulic Cylinder is used in the normal temperature& low pressure cylinder after deep hole processing.

45#, 30Mn2, 27SiMn Piping for Hydraulic Cylinder is used for normal temperature and high pressure cylinder after deep hole processing,

 Q345, E355, E470 oil cylinder is used for low temperature and high pressure cylinder after deep hole processing.