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    Material data sheet

    Steel grade

    • SB27M12CB
    • BCM 311
    • 5464, 5465
    Last revised: Wed, 21 Jun 2017 11:20:12 GMT

    General Information

    WR-Steel®
    (Wear resistant ) WR-steel, stands for wear-resistant steel. This group of steel includes a broad range of grades with a wide range of hardness levels 350 – 650 HV, dimensions and steel grades designed to give you a wear-resistant advantage when making product exposed to a high degree of wear and where service life is important. WR-steels are characterised by consistent properties and cost effectiveness due to optimized alloy content for different end applications.

    Similar designations

    SB9660 - 27MnCrB5-2, SB9652 - 28MnCrB5-2, SB9667 - 29MnCrB5-2, BCM 311

    BCM 311 +QT tempered at 500oC

    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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    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.