25crmo4 Cold Drawn Seamless Tube for Hydraulic Cylinder China St
(相关资料图)
Hydraulic Honing tubes are made of material E235 (ST ) or E355 (ST ) according to DIN EN 10305-4 (DIN 2445/2) or DIN EN 10305-1 (DIN 2391/C). The material is +N (NBK) annealed, phosphate and oiled internally and externally. The tube ends closed with plastic plugs with continuous marking along the entire tube length. The tubes are delivered with . certification on EN 10204.
Steel Tube Finishing
The finishing of tubes under and 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.
E-Mail:chinalongyuejixie@
Material: 10#, 20#, 35#, 45#, 16Mn, 27SiMn, GCr15, 20Cr, 40Cr, 35CrMo, 42CrMo and so on. Undertake processing customised
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25crmo4 Cold Drawn Seamless Tube for Hydraulic Cylinder China St
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