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Material data sheet

Steel grade

  • Ovako152
Last revised: Thu, 30 Jan 2020 15:28:38 GMT

General Information

Ovako 152 is a high cleanliness case hardening steel used for bearing, transmission components and other highly stressed applications. There are three versions of the grade.

152A  / 20NiCrMoS2 - variant with regulated sulphur content for enhanced machinability

152C / 20NiCrMo2 - variant with enhanced hardenability

152G / 20NiCrMo2 - Bearing Steel Quality (BQ) variant

BQ-Steel® 

(Bearing Quality) is a bearing quality clean steel optimized for fatigue strength by a strict control of steel cleanliness. BQ-steel is also ideal for new design solutions in a wide array of demanding applications outside the bearing industry that require longer performance and higher loads. The BQ-steel offer is the result of the Ovako clean steel program. Purity of production means that the material has significantly smaller inclusions compared to conventional steel and, as a result, the fatigue strength of the steel is increased dramatically. Use of the material allows components to be manufactured in smaller sizes. The BQ-steel  has for decades been the problem-solver.

 

For additional Heat Treatment Data, please visit the Heat Treatment Guide.

Similar designations

20NiCrMo2, 20NiCrMoS2, 8620, 8620H, 1.6522, 1.6523, 1.6526, SS2506

152C : DI min 2,21.

20NiCrMo2-2+H shows the Jominy band accordig to EN 10083:2008. Jominy hardenability according to ASTM A255. The graph also shows the average values +/- 1 standard deviation for steel grade 152G and 152C.

Carburizing response - Ovako 152G

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

Contact us

Would you like to know more about our offers? Don´t hesitate to contact us:

Via e-mail: info@ovako.com 

Via telephone: +46 8 622 1300

For more detailed information please visit http://www.ovako.com/en/Contact-Ovako/

  

 

Disclaimer

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.