Hydraulic Cylinder Honed Tube/Seamless Cylinder Tube

Application: Hydraulic Cylinder, Hydraulic Jack
Standard: GB/T8713-88, ISO439/1-1980(E)
Steel Grade: ST52, ST52.3, E355, S235, 20#, 45#, 16Mn etc
OD Size: 30 mm to 1000mm
Max Length: 12 meters
Roughness (Ra): 0.2 to 0.8 um
Straightness: 0.5 mm/1000mm
Tolerance EXT: DIN 2391
Tolerance INT: ISO H7, H8, H9
Type: Cold Drawn, Cold roll, Honed, Skived, Burnished
Conservation: Anti rust oiled both inside and outside surface, plastic caps in both ends