AISI 4024 Steel

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AISI 4024 Steel
Categories:	Metal; Ferrous Metal; Alloy Steel; AISI 4000 Series Steel; Low Alloy Steel; Carbon Steel; Low Carbon Steel
Material Notes:	Sulfur content for SAE 770 is 0.04-0.05 - SAE 770(84) 4024 is an obsolete specification; refer to J1397(92) 4024. Carburizing temperature: 900-925°C (1650-1700°F) Normalizing temperature: >= Carburizing temperature and air cooled. Quenched in oil.
Key Words:	UNS G40240, ASTM A29, ASTM A29M, ASTM A322, ASTM A331, ASTM A519, ASTM A752, SAE 770, SAE J404, SAE J412, SAE J770
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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	156 - 207	156 - 207	hot rolled and cold drawn
Hardness, Knoop	203	203	Converted from Brinell
Hardness, Rockwell B	89	89	Converted from Brinell
Hardness, Vickers	191	191	Converted from Brinell
Tensile Strength, Ultimate	500 MPa	72500 psi	specification for rod and wire.; ASTM A752
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	75 %	75 %
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	0.20 - 0.25 %	0.20 - 0.25 %
Iron, Fe	98.12 - 98.72 %	98.12 - 98.72 %	As remainder
Manganese, Mn	0.70 - 0.90 %	0.70 - 0.90 %
Molybdenum, Mo	0.20 - 0.30 %	0.20 - 0.30 %
Phosphorus, P	<= 0.035 %	<= 0.035 %
Silicon, Si	0.15 - 0.35 %	0.15 - 0.35 %
Sulfur, S	0.035 - 0.050 %	0.035 - 0.050 %

References for this datasheet.

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M4024A / 7434

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