We supply you CDS (cold drawn seamless) honed steel tube specially made for hydraulic cylinders, with short delivery time, reliable quality and reasonable price.

Steel Grade: ST52/E355
Production Standard: EN 10305 E355+SR /DIN2391 ST52+BKS
Inside Diameter Tolerance: H7 - H9
Inside Surface Finish: Ra 0.3 Micron, or better.
Straightness between 0.2-0.3mm/meter.
ID: 30-1200mm.
WT: 3-100mm.

We also suppy pre-honed tube/ ready to hone tube. Tolerance H10.
Steel grade: 20#( SAE1020). CK45. E355/St52.20Mn2.27SiMn. Etc.