PREN 3511-1997 Aerospace Series Steel FE-PL1801 (100Cr6) Vacuum Induction Melted and Consumable Electrode Remelted Annealed Bar for the Manufacture of Machined Bearings a or D Less Than or Equal to 130 mm (Edition P2)
1999PREN 3511-1999 Aerospace Series Steel FE-PL1801 (100Cr6) Vacuum Induction Melted and Consumable Electrode Remelted Softened Bar for the Manufacture of Machined Bearings a or D Less Than or Equal to 130 mm (Edition P 2)
1997PREN 3511-1997 Aerospace Series Steel FE-PL1801 (100Cr6) Vacuum Induction Melted and Consumable Electrode Remelted Annealed Bar for the Manufacture of Machined Bearings a or D Less Than or Equal to 130 mm (Edition P2)
1988PREN 3511-1988 Aerospace Series Steel FE-PL32 Hardened and Tempered Bar for Bearing D Less Than or Equal to 25 mm (Issue P 1)