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Material data sheet

Steel grade

Last revised: Fri, 17 Jun 2022 15:03:11 GMT

General Information

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.

Similar designations


Jominy temperature: 900°C for Ovako 124D.   910°C for 20MoCrS4 EN 10084:2008.

Other properties (typical values)

Youngs module (GPa)Poisson´s ratio (-)Shear module (GPa)Density (kg/m3)
210 0.3 80 7800
 Average CTE 20-300°C (µm/m°K) Specific heat capacity 50/100°C (J/kg°K) Thermal conductivity Ambient temperature (W/m°K) Electrical resistivityAmbient temperature (µΩm)
 12  460 - 480  40 - 45  0.20 - 0.25

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The information in this document is for illustrative purposes only. The data and examples are only general recommendations and not a warranty or a guarantee. The suitability of a product for a specific application can be confirmed only by Ovako once given the actual conditions.The purchaser of an Ovako product has the responsibility to ascertain and control the applicability of the products before using them. Continuous development may necessitate changes in technical data without notice. This document is only valid for Ovako material. Other material, covering the same international specifications, does not necessarily comply with the properties presented in this document.