... ~6000) or dia (15~900) 5. black,milled,turned DIN 1.2316Chemical Composition C Si Mn P S Cr Mo Ni ... Min. % 0.35 0.20 1.30 1.80 0.15 0.90 Max. % 0.45 0 ... .03 0.03 2.10 0.25 1.20 Material Code: DIN ASTM JIS GOST 1.2738 P20+Ni - - 40CrMnNiMo8-6-4Properties ... excellent polishability properties, good wear resistance, contains 1% Ni alloy in addition to 1.2311, because of the Ni addition there is ...