Steel rod

Steel Grade CK45 -> DIN 17200 42CrMo4 -> DIN 17200 Chrome Layer Thickness 25±5 μm 25±5 μm Tolerances ISO f7 ISO f7 Coating Hardness 900 – 1150 HV (0,1) 900 – 1150 HV (0,1) Resistance to Corrosion Min 200 h NSS -> ISO 9227 (*) Min 200 h NSS -> ISO 9227 (*) Rating 9 ISO 10289 Rating 9 ISO 10289 Surface Roughness Ra<0,2 μm Rt ISO 4287-1 Ra<0,2 μm Rt ISO 4287-1 Roundness 1/2 tolerancia -> Ø 1/2 tolerancia -> Ø Straightness Rectitude 1 mm/m 1 mm/m