Honed Tubes For Hydraulic Cylinders Steel Grade and Chemical Compositions: Steel GradeCSiMnPSA Steel nameSteel numbermaxmaxmaxmaxmaxmin E2151.02120.100.050.700.030.0250.025 E2351.03080.170.351.200.030.025- E3551.05800.220.551.600.030.025- Mechanical properties at room temperature Steel gradeMinimum values for the delivery condition Steel namesteel nubmer(+Cc)(+LCc)(+SR)(+Ad) (+N) NBK Rm MpaA %Rm MpaA %Rm MpaReH MpaA %Rm MpaA %Rm MpaReH Mpa A % E2151.02124308380123802801628030290-43021530 E2351.03084806420104203501631525340-48023525 E3551.058064045807580450f1045022490-63035522 aRm: 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 鈮?.8 Rm For delivery condition +LC: ReH 鈮?.7 Rm d For calclulation purposes the following relation is recommended:ReH鈮?.5Rm e For tubes with outside diameter 鈮?0mm and wall thickness 鈮?mm the ReH minimim values are 10Mpa lower than the values given in this Table f For tubes with outside diameter锛?60mm: ReH鈮?20Mpa Note: Special steel grade is also available, according to customer request. Applications: For Auto industry/for machinery use/Oil Cylinder Tube/Motorcyle shock absorber Auto shock absorber innder cylinder/Telescopic Cylinders.Honed Tube factory website:http://www.steeltubeschina.com/carbon-steel-tube/honed-tube/