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Master Bond adhesives

BG42 High Performance Bearing Steel
Categories: Metal; Ferrous Metal; Martensitic; Stainless Steel
Material Notes: Martensitic, stainless high speed steel that combines the tempering, hot hardness and hardness retention characteristics of M50 high speed steel with the corrosion and oxidation resistance of type 440C stainless. Although often used for aerospace bearings and other critical applications, its excellent wear resistance and corrosion resistance makes it a superior choice for use in cutlery applications.

Information provided by Latrobe and the reference(s).
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Physical PropertiesMetricEnglishComments
Density 7.75 g/cc0.280 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell C  30
@Temperature 649 °C		30
@Temperature 1200 °F
 51
@Temperature 538 °C		51
@Temperature 1000 °F
 56.5
@Temperature 482 °C		56.5
@Temperature 900 °F
 58
@Temperature 427 °C		58
@Temperature 800 °F
 60
@Temperature 316 °C		60
@Temperature 600 °F
 62
@Temperature 316 °C		62
@Temperature 600 °F
 63
@Temperature 204 °C		63
@Temperature 400 °F
 63
@Temperature 93.3 °C		63
@Temperature 200 °F
 64.5
@Temperature -17.8 °C		64.5
@Temperature 0.000 °F
 64.5
@Temperature 93.3 °C		64.5
@Temperature 200 °F
Hardness, Vickers  310
@Temperature 649 °C		310
@Temperature 1200 °F
 530
@Temperature 538 °C		530
@Temperature 1000 °F
 660
@Temperature 427 °C		660
@Temperature 800 °F
 720
@Temperature 316 °C		720
@Temperature 600 °F
 780
@Temperature 204 °C		780
@Temperature 400 °F
 805
@Temperature -17.8 °C		805
@Temperature 0.000 °F
 805
@Temperature 93.3 °C		805
@Temperature 200 °F
Modulus of Elasticity 220.6 GPa31990 ksi
 180.6 GPa
@Temperature 482 °C		26190 ksi
@Temperature 900 °F
Modulus of Rigidity 70.40 GPa10210 ksiAt 900°F
 86.53 GPa12550 ksiAt 78°F
Poissons Ratio 0.270.27
Machinability 55 - 60 %55 - 60 %1% Carbon Steel
 
Thermal PropertiesMetricEnglishComments
CTE, linear  9.81 µm/m-°C
@Temperature -73.0 - 21.0 °C		5.45 µin/in-°F
@Temperature -99.4 - 69.8 °F
 11.03 µm/m-°C
@Temperature 21.0 - 149 °C		6.128 µin/in-°F
@Temperature 69.8 - 300 °F
 12.33 µm/m-°C
@Temperature 21.0 - 538 °C		6.850 µin/in-°F
@Temperature 69.8 - 1000 °F
 
Component Elements PropertiesMetricEnglishComments
Carbon, C 1.15 %1.15 %
Chromium, Cr 14.5 %14.5 %
Iron, Fe 78.35 %78.35 %
Manganese, Mn 0.50 %0.50 %
Molybdenum, Mo 4.0 %4.0 %
Silicon, Si 0.30 %0.30 %
Vanadium, V 1.2 %1.2 %

References for this datasheet.

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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MQZ9944 / 172241




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