Honed Tube is well known as hydraulic cylinder barrel in hydraulic industries.Honed Tubes/ Skived & Roller Burnished Tubes are the most important material of manufacturing hydraulic cylinders.

As one of the leading hydraulic cylinder honed tube suppliers and manufacturers,?has been supplying and exporting? honed tube and honed cylinder barrel for almost 20 years. We produce honed steel tubes and skived roller burnished tubes used for hydraulic cylinder or pneumatic cylinder with high quality & good prices.Imperial sizes & metric sizes available.

Hydraulic Cylinder Barrels/Honed Barrels/Cylinder Barrels/ Honed Tubes/ Cold Drawn Seamless Tubes/ID Honing Tubes/Skived and Roller Burnished Tubes/High Precision Hydraulic Tubes

E-Mail:chinalongyuejixie@126.com

Material:20#、45#、16Mn、27SiMn、E355?ST52,CK45,4140,4130,4340, SCM440, 42CrMo4 ,40CrMo,34CrMo4,35Cmo, ,SS304/316,Duplex 2205,etc.

Delivery Condition:?BK, BK+S, GBK, NBK

ID?Size?:?20mm – 1500mm

Length:?max 16m

Type:?Seamless, Hot Rolled, Cold Rolled, Cold Drawn

Straightness:?≤?0.5/1000

Roughness:?0.2-0.4 u

Tolerance EXT:?DIN2391, EN10305, GB/T 1619

Tolerance INT:?H7,H8,H9

Protection:?Anti-rust oil on inside and outside surface, plastic caps in both ends.

Packing: Bundle with steel strip and PE sheet or wooden case

E-Mail:chinalongyuejixie@126.com

Steel Tube Finishing

The finishing of tubes under ST37.4 and ST52.4 are NBK, where tubes are normalized, phosphated, and oiled inside and outside. Normalizing is a type of heat treatment process. Heat treatment done to change its the mechanical properties such as hardness, yield strength, and ductility.

In the normalizing process, steel is heated to a temperature about 55?C. This process will be continued over a period of time for a transformation namely grain refinement to occur. The steel then will be air-cooled in a room temperature. This results in the steel becoming stronger and harder.

Outer Diameter and Tube Thickness Specifications

The specifications of the tube outer diameter and tube wall thickness are according to EN 10305-4. Below Hydraulic Steel Tubes,ANBAO will shows the preferred outside diameter, inside diameter, and wall thickness.