21CrMoV5-7 is a steel for fasteners with specified elevated and/or low temperature properties. 6132, also known as Imanite, has been designed for nitriding, giving similar hardness distribution as case hardening. When using nitriding the distortion due to quenching after carburising can be avoided. 6132 is a M-steel version of 21CrMoV5-7 . M-treatment is very beneficial when the machining is done in Q&T condition and the hardness is about 300 HBW.
The basis for the concept is that non-metallic inclusions are modified and controlled with calcium treatment in a way to minimize tool wear and to maximize chip control in machining operations.
Our M-Steel treatment can be applied to any steel grade.
For further reading about our M-steel concept see our home page.
For additional Heat Treatment Data, please visit the Heat Treatment Guide.
Other properties (typical values)
|Youngs module (GPa)||Poisson´s ratio (-)||Shear module (GPa)||Density (kg/m3)|
| 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)|
|| 460 - 480
|| 40 - 45
|| 0.20 - 0.25
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.