... : Hot forged, Heat-treatment (Normalized / Annealed / Quenched / tempered), Rough machining5.Technical Data: Chemical Composition, Physical Properties and Mechanical Testing according to the ... ,SAE4130,SAE4340,18CrNiMo7-6,39CrNiMo3,SAE4140,17CrNiMo6,38CrMoAl,SCM440,SCM415,SCM420,SNCM439,S26C;21CrMoV511,56NiCrMoV7,ST52-3;SACM645,S355J2,5140;41Cr4 ...