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Elmet Technologies

Ovako 20MnCrS5 4326 Steel, Annealing
Categories: Metal; Ferrous Metal; Alloy Steel; AISI 4000 Series Steel

Material Notes: General Information: Case-hardening steel with low carbon content but good hardenability reaching good wear resistance due to high surface hardness after hardening. The small grain size benefits in good ductility and fatigue strength. Suitable for gearboxes and axle gears.

Information provided by Ovako

Key Words: 1.7149, SAE 5120, AISI 4820, DIN 20MnCrS5
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 <= 180
@Thickness 25.0 - 160 mm
<= 180
@Thickness 0.984 - 6.30 in
Round bar
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 385 °C725 °FMS
 731 °C1350 °FAC1
 831 °C1530 °FAC3
 
Component Elements PropertiesMetricEnglishComments
Aluminum, Al 0.020 - 0.030 %0.020 - 0.030 %
Carbon, C 0.18 - 0.22 %0.18 - 0.22 %
Chromium, Cr 1.25 - 1.4 %1.25 - 1.4 %
Iron, Fe 95.81 - 97.11 %95.81 - 97.11 %As Balance
Manganese, Mn 1.1 - 1.4 %1.1 - 1.4 %
Molybdenum, Mo 0.040 - 0.060 %0.040 - 0.060 %
Nickel, Ni 0.10 - 0.25 %0.10 - 0.25 %
Phosphorus, P <= 0.035 %<= 0.035 %
Silicon, Si 0.10 - 0.40 %0.10 - 0.40 %
Sulfur, S 0.10 - 0.40 %0.10 - 0.40 %
 
Descriptive Properties
WeldabilityCEV 0.74max
 Pcm 0.42max

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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