31CrMoV9 Steel

Steel name: 31CrMoV9
Table No.: 1905
DIN designation: 31CrMoV9
Mat.No. (Wr.Nr.) designation: 1.8519
AISI/SAE designation: 31CrMoV9
EN designation: 31CrMoV9
UNI designation: 31CrMoV9
AFNOR designation: 31CrMoV9
Chemical composition in weight %: 0.27-0.34% C, max. 0.30% Si, 0.40-0.70% Mn, max. 0.025% P, max. 0.035% S, 2.30-2.70% Cr, 0.15-0.25% Mo, 0.10-0.20% V
Steel group: Nitriding steels
Applications: No data
Comment: Ac1=760 C, Ac3=820 C, Ms=350 C, Mf=130 C.
Reference: Not shown in this demo version.

Heat Treatment
Quenching: 850-880 C/polymer
Tempering: 580-700 C/air

Table Tempering Temperature - Hardness - Mechanical Properties

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