Honed Tube/Hydraulic Cylinder Bore Tube/Burnished Tube       

Grade: ST 52,ST 52.3,CK 45(SAE 1045),E 355,16Mn,STKM-13C,SAE1020

 

Metric size: O.D: 30 to 1000mm

Inch size: OD 2" to 20"

Length: max 12 Meter

 

Straightness: < 0.2/1000 mm/m

Tolerance EXT: DIN 2391
Tolerance INT: ISO H7, H8, H9, H10

 

Roughness(Ra): 0.2 to 0.4 Micron

 

Type: high precision cold drawing,seamless honed,pre-honed,skived and burnished,BK+S