Cylinder tubes

seamless, cold drawn HPK precision steel tubes EN 10305-1

Seamless, cold drawn HPK tubes have the best dimensional tolerances, excellent straightness and roundness. The inside roughness is max. Ra 0.4 μm, while the mechanical specification exceeds the standard requirements. These tubes are beeing used to build piston rods or telescopic cylinders and are suitable for chromating.

A recommended ultrasonic test can also be carried out for a surcharge

Facts and figures

Diameter (OD) 20,0 mm – 140,0 mm
Wall thickness (WT) 2,0 mm – 30,0 mm
Material E355
other materials upon request
Treatment condition +SR /+N
Tests Eddy current testing
EN 10893-2
extra charged:
Ultrasonic testing
EN 10893-10


  • Hydraulics and pneumatics


Our customer support at no extra charge:

  • Inspection certificate 3.1
    according to EN 10204:2005-01

  • eddy current test
    according to EN 10893-2:2011-07

  • Delivery to your customers of a weight of a minimum 5 tons in Germany possible.

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