Steel grade: | C45E (+N) (EN 10083) |
Diameter range (metric): | 6 - 200 mm |
Diameter range (imperial): | 1/4" - 8" |
Tolerance: | ISO f7 (upon request: h7) (EN ISO 286-2) |
Roundness: | IT / 2 |
Standard length: | - for Ø < 60 mm: 5600 - 6200 mm - for Ø ≥ 60 mm: 6500 - 7200 mm Upon request: special lengths on all diameters |
Surface roughness: | Ra max. 0.20 μm (statistic average: 0.05 - 0.15 μm) (EN ISO 4287) |
Surface hardness: | min. 55 HRC |
Hardened layer depth: | from 0.5 to 3.5 mm |
Chrome layer thickness: | < Ø20 mm: min. 15 μm ≥ Ø20 mm: min. 20 μm |
Chrome layer hardness: | min. 900 HV(0.1) |
Straightness: | ≤ Ø16 mm: max. 0.3 mm : 1000 mm > Ø16 mm: max. 0.2 mm : 1000 mm |