AISI 4620H Steel, double quenched and tempered, carburized, oil quenched, 230°C (450°F) temper

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AISI 4620H Steel, double quenched and tempered, carburized, oil quenched, 230°C (450°F) temper
Categories:	Metal; Ferrous Metal; Alloy Steel; AISI 4000 Series Steel; Low Alloy Steel; Carbon Steel; Low Carbon Steel
Material Notes:	Double quenched and tempered: carburized at 925°C (1700°F) for 8 hrs., pot cooled, reheated to 815°C (1500°F), quenched in agitated oil, reheated to 800°C (1470°F), quenched in agitated oil, 230°C (450°F) temper. 1.5 mm case depth.
Key Words:	UNS H46200, ASTM A304, SAE J1298
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Physical Properties	Metric	English	Comments

Density	7.85 g/cc	0.284 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	235	235
Hardness, Knoop	259	259	Converted from Brinell
Hardness, Rockwell B	97	97	Converted from Brinell
Hardness, Rockwell C	59	59
Hardness, Vickers	247	247	Converted from Brinell
Tensile Strength, Ultimate	795 MPa	115000 psi
Tensile Strength, Yield	531 MPa	77000 psi
Elongation at Break	22.5 %	22.5 %	in 50 mm
Reduction of Area	62.1 %	62.1 %
Modulus of Elasticity	205 GPa	29700 ksi	Typical for steel
Bulk Modulus	160 GPa	23200 ksi	Typical for steel.
Poissons Ratio	0.29	0.29	Calculated
Machinability	65 %	65 %	Hot rolled and cold drawn. Based on 100% machinability for AISI 1212 steel.
Shear Modulus	80.0 GPa	11600 ksi	Typical for steel

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000245 ohm-cm	0.0000245 ohm-cm	Typical 4000 series steel

Thermal Properties	Metric	English	Comments
Specific Heat Capacity	0.475 J/g-°C	0.114 BTU/lb-°F	Typical 4000 series steel
Thermal Conductivity	44.5 W/m-K	309 BTU-in/hr-ft²-°F	Typical steel

Component Elements Properties	Metric	English	Comments
Carbon, C	0.17 - 0.23 %	0.17 - 0.23 %
Iron, Fe	96.295 - 97.58 %	96.295 - 97.58 %	As remainder
Manganese, Mn	0.35 - 0.75 %	0.35 - 0.75 %
Molybdenum, Mo	0.20 - 0.30 %	0.20 - 0.30 %
Nickel, Ni	1.55 - 2.0 %	1.55 - 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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M462CJ / 7933

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