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Elmet Technologies

Ovako 94CrMo5-2* 821L Steel, Spheroidize annealing
Categories: Metal; Ferrous Metal; Alloy Steel

Material Notes: General Information: Ovako 821L is a through hardening bearing steel intended for rolling contact and other high fatigued applications. In the hardened condition the high hardness, high strength and high cleanliness provides the steel with the right properties to withstand high cycle, high stress fatigue. Ovako 821L is mainly used for small and medium sized bearing components. It is also regularly used for other machine components that require high tensile strength and high hardness.

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.

Information provided by Ovako

Key Words: 100Cr6, 52100, 100 C 6
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Density 7.80 g/cc0.282 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Brinell 195195All formats
Tensile Strength 700 MPa102000 psiAll formats
Tensile Strength, Yield >= 410 MPa>= 59500 psiAll formats
Elongation at Break 27 %27 %All formats
Modulus of Elasticity 210 GPa30500 ksi
Poissons Ratio 0.300.30
Shear Modulus 80.0 GPa11600 ksi
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.00000200 - 0.00000250 ohm-cm0.00000200 - 0.00000250 ohm-cm
 
Thermal PropertiesMetricEnglishComments
CTE, linear 12.0 µm/m-°C
@Temperature 20.0 - 300 °C
6.67 µin/in-°F
@Temperature 68.0 - 572 °F
Specific Heat Capacity 0.460 - 0.480 J/g-°C
@Temperature 50.0 - 100 °C
0.110 - 0.115 BTU/lb-°F
@Temperature 122 - 212 °F
Thermal Conductivity 40.0 - 45.0 W/m-K278 - 312 BTU-in/hr-ft²-°FAmbient temperature
Transformation Temperature 115 °C239 °FMS
 750 °C1380 °FAC1
 750 °C1380 °FAC3
 
Component Elements PropertiesMetricEnglishComments
Carbon, C 0.94 - 1.0 %0.94 - 1.0 %
Chromium, Cr 1.3 - 1.5 %1.3 - 1.5 %
Iron, Fe 96.5 - 97.21 %96.5 - 97.21 %As Balance
Manganese, Mn 0.25 - 0.45 %0.25 - 0.45 %
Molybdenum, Mo 0.20 - 0.23 %0.20 - 0.23 %
Nickel, Ni <= 0.15 %<= 0.15 %
Phosphorus, P <= 0.015 %<= 0.015 %
Silicon, Si 0.10 - 0.15 %0.10 - 0.15 %
Sulfur, S <= 0.010 %<= 0.010 %

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.

NOVAKO375 / 234674

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