AISI 1141 Steel, normalized at 900°C (1650°F), air cooled, round

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AISI 1141 Steel, normalized at 900°C (1650°F), air cooled, round
Categories:	Metal; Ferrous Metal; Carbon Steel; AISI 1000 Series Steel; Medium Carbon Steel
Material Notes:	Applications include cold drawn or finished bar, cold punched nuts, split rivets, machine screws, and wood screws.
Key Words:	UNS G11410, ASTM A29, ASTM A107, ASTM A108, ASTM A311, FED QQ-S-637, SAE J403, SAE J412, SAE J414
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Physical Properties	Metric	English	Comments

Density	7.87 g/cc	0.284 lb/in³	Typical for steel.

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	201 @Diameter 25.4 mm	201 @Diameter 1.00 in
	201 @Diameter 50.8 mm	201 @Diameter 2.00 in
	201 @Diameter 102 mm	201 @Diameter 4.00 in
	207 @Diameter 12.7 mm	207 @Diameter 0.500 in
Hardness, Knoop	223 @Diameter 25.4 mm	223 @Diameter 1.00 in	Converted from Brinell
	223 @Diameter 50.8 mm	223 @Diameter 2.00 in	Converted from Brinell
	223 @Diameter 102 mm	223 @Diameter 4.00 in	Converted from Brinell
	229 @Diameter 12.7 mm	229 @Diameter 0.500 in	Converted from Brinell
Hardness, Rockwell B	93 @Diameter 12.7 mm	93 @Diameter 0.500 in	Converted from Brinell
	93 @Diameter 25.4 mm	93 @Diameter 1.00 in	Converted from Brinell
	93 @Diameter 50.8 mm	93 @Diameter 2.00 in	Converted from Brinell
	93 @Diameter 102 mm	93 @Diameter 4.00 in	Converted from Brinell
Hardness, Rockwell C	13 @Diameter 25.4 mm	13 @Diameter 1.00 in	Converted from Brinell hardness. Value below normal HRC range, for comparison purposes only.
	13 @Diameter 50.8 mm	13 @Diameter 2.00 in	Converted from Brinell hardness. Value below normal HRC range, for comparison purposes only.
	13 @Diameter 102 mm	13 @Diameter 4.00 in	Converted from Brinell hardness. Value below normal HRC range, for comparison purposes only.
	15 @Diameter 12.7 mm	15 @Diameter 0.500 in	Converted from Brinell hardness. Value below normal HRC range, for comparison purposes only.
Hardness, Vickers	211 @Diameter 25.4 mm	211 @Diameter 1.00 in	Converted from Brinell
	211 @Diameter 50.8 mm	211 @Diameter 2.00 in	Converted from Brinell
	211 @Diameter 102 mm	211 @Diameter 4.00 in	Converted from Brinell
	217 @Diameter 12.7 mm	217 @Diameter 0.500 in	Converted from Brinell
Tensile Strength, Ultimate	689 MPa @Diameter 102 mm	99900 psi @Diameter 4.00 in
	696 MPa @Diameter 50.8 mm	101000 psi @Diameter 2.00 in
	703 MPa @Diameter 25.4 mm	102000 psi @Diameter 1.00 in
	731 MPa @Diameter 12.7 mm	106000 psi @Diameter 0.500 in
Tensile Strength, Yield	380 MPa @Diameter 102 mm	55100 psi @Diameter 4.00 in
	395 MPa @Diameter 50.8 mm	57300 psi @Diameter 2.00 in
	405 MPa @Diameter 25.4 mm	58700 psi @Diameter 1.00 in
	425 MPa @Diameter 12.7 mm	61600 psi @Diameter 0.500 in
Elongation at Break	21.7 % @Diameter 102 mm	21.7 % @Diameter 4.00 in
	22.5 % @Diameter 50.8 mm	22.5 % @Diameter 2.00 in
	22.7 % @Diameter 12.7 mm	22.7 % @Diameter 0.500 in
	22.7 % @Diameter 25.4 mm	22.7 % @Diameter 1.00 in
Reduction of Area	49.3 % @Diameter 102 mm	49.3 % @Diameter 4.00 in
	55.5 % @Diameter 25.4 mm	55.5 % @Diameter 1.00 in
	55.8 % @Diameter 50.8 mm	55.8 % @Diameter 2.00 in
	57.8 % @Diameter 12.7 mm	57.8 % @Diameter 0.500 in
Modulus of Elasticity	200 GPa	29000 ksi	Typical for steel
Bulk Modulus	160 GPa	23200 ksi	Typical for steel.
Poissons Ratio	0.29	0.29	Typical For Steel
Shear Modulus	80.0 GPa	11600 ksi	Typical for steel.
Izod Impact	53.0 J	39.1 ft-lb	normalized at 900°C (1650°F)

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000170 ohm-cm @Temperature 20.0 °C	0.0000170 ohm-cm @Temperature 68.0 °F	condition of specimen unknown

Thermal Properties	Metric	English	Comments
CTE, linear	11.5 µm/m-°C @Temperature 20.0 °C	6.39 µin/in-°F @Temperature 68.0 °F	Typical steel
	12.2 µm/m-°C @Temperature 0.000 - 300 °C	6.78 µin/in-°F @Temperature 32.0 - 572 °F	Typical for steel
	13.9 µm/m-°C @Temperature 0.000 - 500 °C	7.72 µin/in-°F @Temperature 32.0 - 932 °F	Typical for steel
Specific Heat Capacity	0.472 J/g-°C	0.113 BTU/lb-°F	Typical steel
Thermal Conductivity	51.9 W/m-K	360 BTU-in/hr-ft²-°F	Typical steel

Component Elements Properties	Metric	English	Comments
Carbon, C	0.37 - 0.45 %	0.37 - 0.45 %
Iron, Fe	97.73 - 98.2 %	97.73 - 98.2 %	As remainder
Manganese, Mn	1.35 - 1.65 %	1.35 - 1.65 %
Phosphorus, P	<= 0.040 %	<= 0.040 %
Sulfur, S	0.080 - 0.13 %	0.080 - 0.13 %

References for this datasheet.

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M114AT / 7253

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