Induction hardened hard chrome plated rods with Ck45 quality, excellent surface roughness, optimum corrosion resistance and high impact resistance for hydraulic-pneumatic cylinders and other applications. Technical Specifications Steel Grade:C45E (EN 10083) Diameter Range:12 to 120 mm Tolerance Class:ISO f7 Roundness:Diameter tolerance / 2 Standard Lengths:For 60 mm: 5600 - 6200 mm,For 60 mm: 5800 - 6200 mm Upon request: special lengths on all diameters Surface Roughness:Ra max. 0.2 m Surface Hardness:min 55 HRC Hardened Layer Depth:2.0 mm Chrome Layer Thickness: 20 mm: min. 15 m, 20 mm: min. 20 m Chrome Layer Hardness:min. 900 HV (0,1)