... in medium to large sections with case hardness up to Rc62 when carburized, hardened and tempered.4317 can also be ... (uncarburised) as a high tensile steel, which when suitably hardened and tempered can be utilized for various applications requiring good ... Followers, Clutch Dogs, Compressor Bolts, Extractors, Fan Shafts, Heavy Duty Gears, Pump Shafts, Sprockets, Tappets, Wear Pins, Wire Guides etc.. ...