ISO 683-17:2014 standard W.NR.: 1.3505 Ball bearing steel CHEMICAL COMPOSITION MECHANICAL FEATURES PROPERTIES Analysis according to the ISO 683-17:2014 standard C % Si % Mn % P % 1)S % Cr % Mo % Al % Cu % O % From 0,93 0,15 0,25 – – 1,35 – – – – To 1,05 0,35 0,45 0,025 0,015 1,60 0,10 0,050 0,30 0,0015 1) In the cases where machinability is of primary importance, a maximum sulphur content S=0,030% can be agreed. According to the ISO 683-17:2014 standard Spheroidized annealed + cold drawn ( +AC+C ) b) hardness HB max a) 241 * Delivery condition: Spheroidized annealed a) Hardness for cold drawn products with a diameters less than 13 mm can be 320 HBW Max. b) Upon request it can be supplied with mechanical features differing from those indicated in the standard. Strain strength and resistance to wear: This steel grade is generally destined to applications in which a high strain strength and a high resistance to wear under high alternate loads are required. Therefore its main components must have a high hardness, a high elastic limit and a high fatigue strength. Hardenability: Good hardenability; hardening must allow quenching in oil in order to reduce to the minimum the risk of hardening cracks or distortions and to minimize the subsequent grinding operations. Notes: CORRESPONDENCE WITH OTHER STANDARDS (purely as an indication): UNI 3097 DIN 17230 AISI/SAE AFNOR 35-565 100Cr6 100Cr6 52100 100C6 100Cr6-EN.pdf (PDF, opens in a new window)