Seamless cylindrical tubes are stocked in steel grade E355 and shipping space +SR stress relieved. Other steel grades and delivery modes are available on factory order. The pipes are manufactured in accordance with the requirements of the European standard EN 10305-1. The standard ensures precise dimensional tolerances and a high quality surface finish for the tubes.
Seamless cylindrical tubes are skived & roller burnished (SRB). The inner surface tolerance of the tube is H8 (except H9 for the smallest inside diameters). The surface roughness of a roller burnished inside diameter is max Ra 0,3µm. The precise diameter tolerance combined with the low surface roughness provides a high quality combination that fits tightly with, for example, a hydraulic cylinder gasket, allowing the gasket to have a long life and eliminating possible leakage due to surface roughness.
Seamless cylinder liners are commonly used in a variety of hydraulic and pneumatic applications where durable and reliable cylinders are required. They are used in hydraulic cylinders for cranes, forklifts, excavators and industrial equipment.
For dimension tables and more details on the steel grades we offer, please see our downloadable product catalogue.
precise internal diameter tolerance
high quality inner surface
External diameter | 30 - 300 mm |
Inside diameter | 20 - 260 mm |
Tolerance | ISO H8 - H9 |
Roll polished max. Ra 0,3 µm |
Standard | EN10305-1 |
Delivery space | E355 + SR |
Certificate of origin | EN 10204:3.1 |