20MoCrS4 Steel

20MoCrS4 Steel

Steel name: 20MoCrS4
Diagram No.: 2029
DIN designation: 20MoCrS4
Chemical composition in weight %: 0.18-0.22% C, 0.15-0.35% Si, 0.70-0.90% Mn, max. 0.035% P, 0.020-0.035% S, 0.40-0.50% Cr, 0.40-0.50% Mo, max. 0.20% Ni max. 0.10% V
Steel group: Alloyed steels
Applications: Ovako 124D is a Chrome-Molybdenum alloyed steel used mainly as a carburizing grade, but may also be used in Q&T condition of its own from the 0.2% Carbon level. By also being alloyed with Sulphur the machinability is improved in low speed cutting as eg Broaching. This makes Ovako 124D very suitable for gears, but also other components with heavy machining by drilling or milling like Gear wheels in Hydraulic pumps. From being Ingot cast the cleanliness is following the base cleanliness from the Ovako Ingot process rouite.
Comment: Similar designations: 20MoCr4. Ac1=735 C, Ac3=860 C, Ms=440 C. Jominy temperature: 900°C for Ovako 124D. 910°C for 20MoCrS4 EN 10084:2008.
Reference: Not shown in this demo version.

Heat Treatment
Hardening: No data

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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