AISI 4032 Steel, Annealed Cold Drawn Bar

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AISI 4032 Steel, Annealed Cold Drawn Bar
Categories:	Metal; Ferrous Metal; Alloy Steel; AISI 4000 Series Steel; Low Alloy Steel; Carbon Steel; Medium Carbon Steel
Material Notes:	FED QQ-S-00629 FS4032, ASTM A322 4032, and SAE 770 4032 are obsolete specifications; refer to SAE J1397 for SAE 770 - other replacements are unknown. The microstructure of the annealed cold drawn bar is mostly lamellar pearlite and ferrite.
Key Words:	UNS G40320, ASTM A29, ASTM A29M, ASTM A322, ASTM A331, SAE 770, FED QQ-S-00629
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Physical Properties	Metric	English	Comments

Density	7.85 g/cc	0.284 lb/in³	Typical Carbon Steel

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	174 - 217	174 - 217
Modulus of Elasticity	200 GPa	29000 ksi	Typical Carbon Steel
Poissons Ratio	0.29	0.29	Typical Carbon Steel
Machinability	70 %	70 %	Cold Drawn AISI 1212 = 100%
Shear Modulus	78.0 GPa	11300 ksi	Typical Carbon Steel

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000170 ohm-cm	0.0000170 ohm-cm	Typical Carbon Steel

Thermal Properties	Metric	English	Comments
CTE, linear	12.0 µm/m-°C	6.67 µin/in-°F	Typical Carbon Steel
Specific Heat Capacity	0.470 J/g-°C	0.112 BTU/lb-°F	Typical Carbon Steel
Thermal Conductivity	52.0 W/m-K	361 BTU-in/hr-ft²-°F	Typical Carbon Steel

Component Elements Properties	Metric	English	Comments
Carbon, C	0.30 - 0.35 %	0.30 - 0.35 %
Iron, Fe	>= 98.025 %	>= 98.025 %	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	0.20 - 0.35 %	0.20 - 0.35 %
Sulfur, S	<= 0.040 %	<= 0.040 %

References for this datasheet.

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M4032AA / 7453

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