20MoCr4-20MoCrS4 Steel

Steel name: 20MoCr4-20MoCrS4
Diagram No.: 1174
DIN designation: 20MoCr4, 20MoCrS4
Mat.No. (Wr.Nr.) designation: 1.7321, 1.7323
Old name: Mo 20
Chemical composition in weight %: 20MoCr4: 0.20% C, 0.25% Si, 0.75% Mn, 0.40% Cr, 0.45% Mo,
max. 0.035% S, +Pb. 20MoCrS4: 0.20% C, 0.25% Si, 0.75% Mn, 0.40% Cr, 0.45% Mo,
0.020-0.035% S, +Pb
Steel group: Alloy special structural steels
Applications: No data
Comment: The legend: Harte in HRC-Hardness in HRC, Abstand von der abgeschreckten Stirnseite
der Probe in mm-Distance from quenched end in mm, Austenitisierungstemperatur-Austenitizing
temperature
Reference: Not shown in this demo version.

Heat Treatment
Hardening: Core: 860-900oC, Case: 780-820oC

Hardenability Diagram

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Other Steel Data links:
Carbides in Steel
CCT and TTT Diagrams of Steels
CCT and TTT Diagram Calculating Service
Hardenability Calculating Service
Macro Defects in Steel
Metal Etchants
Non-Metallic Inclusions in Steel
Semiconductor Etchants
Transformation Diagrams of Non-Ferrous Alloys
Tempering Diagrams of Steels

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