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Ensinger PEI

AISI 8620 Steel, normalized (heated to 915°C air cooled), 13 mm (0.5 in.) round
Categories: Metal; Ferrous Metal; Alloy Steel; AISI 8000 Series Steel; Low Alloy Steel; Carbon Steel; Low Carbon Steel
Material Notes: AISI 8620 is a common, carburizing alloy steel used for a variety of medium-strength applications including gears, camshafts, fasteners, and chains/chain pins. Flexibility in hardening treatments allow optimization of case/core properties.

Specific conditions for property data below: Normalized: heated to 915°C (1675°F), air cooled.
Key Words: AFNOR 22 NCD 2, UNI 20 NiCrMo 2, JIS SNCM 21 H, JIS SNCM 21, B.S. 805 H 20 (UK), B.S. 805 M 20 (UK), MIL SPEC MIL-S-16794, SAE J404, SAE J770, DIN 1.6523, AFNOR 20 NCD 2 (France), UNS G86200, AMS 6274, AMS 6276, AMS 6277, ASTM A322, ASTM A331, ASTM A505, ASTM A513
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Physical PropertiesMetricEnglishComments
Density 7.85 g/cc0.284 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Brinell 197197
Hardness, Knoop 219219Converted from Brinell
Hardness, Rockwell B 9292Converted from Brinell
Hardness, Rockwell C 1313Converted from Brinell hardness. Value below normal HRC range, for comparison only.
Hardness, Vickers 207207Converted from Brinell
Tensile Strength, Ultimate 660 MPa95700 psi
Tensile Strength, Yield 370 MPa53700 psi
Elongation at Break 26.3 %26.3 %in 50 mm.
Reduction of Area 62.5 %62.5 %
Modulus of Elasticity 205 GPa29700 ksiTypical for steel
Bulk Modulus 160 GPa23200 ksiTypical for steel
Poissons Ratio 0.290.29Calculated
Machinability 65 %65 %hot rolled and cold drawn. Based on 100% machinability for AISI 1212 steel.
Shear Modulus 80.0 GPa11600 ksiTypical for steel.
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.0000234 ohm-cm0.0000234 ohm-cmTypical steel
 
Thermal PropertiesMetricEnglishComments
Specific Heat Capacity 0.475 J/g-°C0.114 BTU/lb-°FTypical steel
Thermal Conductivity 46.6 W/m-K323 BTU-in/hr-ft²-°FTypical steel
 
Component Elements PropertiesMetricEnglishComments
Carbon, C 0.18 - 0.23 %0.18 - 0.23 %
Chromium, Cr 0.40 - 0.60 %0.40 - 0.60 %
Iron, Fe 96.895 - 98.02 %96.895 - 98.02 %As remainder
Manganese, Mn 0.70 - 0.90 %0.70 - 0.90 %
Molybdenum, Mo 0.15 - 0.25 %0.15 - 0.25 %
Nickel, Ni 0.40 - 0.70 %0.40 - 0.70 %
Phosphorus, P <= 0.035 %<= 0.035 %
Silicon, Si 0.15 - 0.35 %0.15 - 0.35 %
Sulfur, S <= 0.040 %<= 0.040 %

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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M862BC / 8309

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