EN10305-1 Hydraulic Cylinder Tubing Seamless Cold Dranw Steel Tubes

Standard: EN10305-1 Seamless cold drawn/rolling steel tubes                                                  

Steel tubes for precision applications.  Technical delivery conditions.       

Applications: for Auto industry/for machinery use/Oil Cylinder Tube/Motorcyle shock absorber                                       Auto shock absorber innder cylinder/Telescopic Cylinders                                            

Size range: O.D.:6-350mm     W.T.:1-35mm      L:max12000mm    

Delivery Condition:+Cc +LCc +SR +Ad +N 

Steel Grade and Chemical Compositions: 

a  Rm: tensile strength;  ReH: upper yield strength; A: elongation after fracture                                                   b  1Mpa=1N/mm2                                                    
c  Depending on the degree of cold work in the finishing pass the yield strength may nearly be as high as the tensile     strength.                                                    
    For calculation purposes the following relations are recommended:                                                    
    for delivery condition +C: ReH ≥0.8 Rm                                                    
    for delivery condition +LC: ReH ≥0.7 Rm                                                    
d  For calclulation purposes the following relation is recommended:ReH≥0.5Rm                                              

e  For tubes with outside diameter ≤30mm and wall thickness ≤3mm the ReH minimim values are 10Mpa lower than the     values given in this Table                                                    
f   For tubes with outside diameter＞160mm: ReH≥420Mpa     

Note: Special steel grade is also available, according to customer request.