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AISI 4820H Steel, single quenched and tempered (150°C (300°F)), 1.2 mm case depth
Categories: Metal; Ferrous Metal; Alloy Steel; AISI 4000 Series Steel; Low Alloy Steel; Carbon Steel; Low Carbon Steel
Material Notes: Carburized at 925°C (1700°F) for 8 hrs., pot cooled, reheated to 800°C (1470°F), oil quenched, 150°C (300°F) temper. 1.2mm case depth. Recommended practice for max. case hardness
Key Words: UNS H48200, ASTM A304, SAE J1268, low carbon steels
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Physical PropertiesMetricEnglishComments
Density 7.85 g/cc0.284 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Brinell 415415
Hardness, Knoop 446446Converted from Brinell
Hardness, Rockwell B 103103Converted from Brinell
Hardness, Rockwell C 6161case hardness at 1.2mm case depth.
Hardness, Vickers 440440Converted from Brinell
Tensile Strength, Ultimate 1431 MPa207500 psi
Tensile Strength, Yield 1150 MPa167000 psi
Elongation at Break 13.8 %13.8 %in 50 mm.
Modulus of Elasticity 205 GPa29700 ksiTypical for steel
Bulk Modulus 160 GPa23200 ksiTypical for steel
Poissons Ratio 0.290.29Calculated
Machinability 50 %50 %annealed 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 - 0.23 %0.17 - 0.23 %
Iron, Fe 94.495 - 95.88 %94.495 - 95.88 %As remainder
Manganese, Mn 0.40 - 0.80 %0.40 - 0.80 %
Molybdenum, Mo 0.20 - 0.30 %0.20 - 0.30 %
Nickel, Ni 3.2 - 3.8 %3.2 - 3.8 %
Phosphorus, P <= 0.035 %<= 0.035 %
Silicon, Si 0.15 - 0.30 %0.15 - 0.30 %
Sulfur, S <= 0.040 %<= 0.040 %

References for this datasheet.

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M482CB / 8000




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