41Cr4 Steel

Steel name: 41Cr4
Table No.: 1737
DIN designation: 41Cr4
Mat.No. (Wr.Nr.) designation: 1.7035
AISI/SAE designation: 5140
EN designation: 41Cr4
UNI designation: 41Cr4
AFNOR designation: 42C4
BS designation: 530M40
GOST designation: 41H
GB designation: 40Cr
Chemical composition in weight %: 0.38-0.45% C, max. 0.40% Si, 0.60-0.90% Mn, max. 0.025% P, max. 0.035% S, 0.90-1.20% Cr
Steel group: Alloy steels
Applications: No data
Comment: Ac1=750 C, Ac3=790 C, Ms=310 C, Mf=100 C.
Reference: Not shown in this demo version.

Heat Treatment
Quenching: 850 C/oil, polymer
Tempering: 550-650 C/air
Hardenability test
Quenching: 850 C/water

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Other Steel Data links:
Carbides in Steel
CCT & TTT Diagrams of Steels
Etchants Database
Hardenability Calculating Service
Macro Defects in Steel
Non-Metallic Inclusions in Steel
Tempering Diagrams of Steels

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