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AISI 4620 Steel, mock carburized, 230°C (450°F) temper, 13 mm (0.5 in.) round
Categories: Metal; Ferrous Metal; Alloy Steel; AISI 4000 Series Steel; Low Alloy Steel; Carbon Steel; Low Carbon Steel
Material Notes: Mock Carburized at 925°C (1700°F) for 8 hrs., reheated to 815°C (1500°F), oil quenched, 230°C (450°F) temper.
Key Words: SAE J404, SAE J412, SAE J779, UNS G46200, AMS 6294, ASTM A322, ASTM A331, ASTM A505, ASTM A535, MIL SPEC MIL-S-7493 (A4620)
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Physical PropertiesMetricEnglishComments
Density 7.85 g/cc0.284 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Brinell 241241
Hardness, Knoop 265265Converted from Brinell
Hardness, Rockwell B 9797Converted from Brinell
Hardness, Rockwell C 2222Converted from Brinell
Hardness, Vickers 254254Converted from Brinell
Tensile Strength, Ultimate 814 MPa118000 psi
Tensile Strength, Yield 560 MPa81200 psi
Elongation at Break 21.4 %21.4 %in 50 mm
Reduction of Area 65.3 %65.3 %
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 0.0000245 ohm-cm0.0000245 ohm-cmTypical 4000 series steel
 
Thermal PropertiesMetricEnglishComments
Specific Heat Capacity 0.475 J/g-°C0.114 BTU/lb-°FTypical 4000 series steel
Thermal Conductivity 44.5 W/m-K309 BTU-in/hr-ft²-°FTypical steel
 
Component Elements PropertiesMetricEnglishComments
Carbon, C 0.17 - 0.22 %0.17 - 0.22 %
Iron, Fe 96.405 - 97.38 %96.405 - 97.38 %As remainder
Manganese, Mn 0.45 - 0.65 %0.45 - 0.65 %
Molybdenum, Mo 0.20 - 0.30 %0.20 - 0.30 %
Nickel, Ni 1.65 - 2.0 %1.65 - 2.0 %
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.

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AISI 4620 Steel, double quenched and tempered, carburized, oil quenched, 230°C (450°F) temper
AISI 4620 Steel, mock carburized, 150°C (300°F) temper, 13 mm (0.5 in.) round
AISI 4620 Steel, mock carburized, 230°C (450°F) temper, 100 mm (4 in.) round

M462AJ / 7881

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