AISI 1340 Steel, oil quenched from 830°C (1525°F), 595°C (1100°F) temper, 50 mm (2 in.) round

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AISI 1340 Steel, oil quenched from 830°C (1525°F), 595°C (1100°F) temper, 50 mm (2 in.) round
Categories:	Metal; Ferrous Metal; Alloy Steel; Low Alloy Steel; Carbon Steel; AISI 1000 Series Steel; Medium Carbon Steel
Material Notes:	Can be heat treated to meet property requirements. Forms: hot rolled and cold finished bar, cold heading quality wire Applications: construction applications, machined components, high-strength bolts, screws, cap screws, socket screws, recessed-head screws.
Key Words:	UNS G13400, ASTM A322, ASTM A331, ASTM A519, ASTM A547, MIL SPEC MIL-S-16974, SAE J404, SAE J412, SAE J770
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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	217	217
Hardness, Knoop	240	240	Converted from Brinell
Hardness, Rockwell B	95	95	Converted from Brinell
Hardness, Rockwell C	17	17	Converted from Brinell
Hardness, Vickers	228	228	Converted from Brinell
Tensile Strength, Ultimate	752 MPa	109000 psi
Tensile Strength, Yield	565 MPa	81900 psi
Elongation at Break	24.7 %	24.7 %	in 50 mm
Reduction of Area	64.3 %	64.3 %
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
Machinability	50 %	50 %	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	0.0000174 ohm-cm	0.0000174 ohm-cm	Typical steel

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	0.38 - 0.43 %	0.38 - 0.43 %
Iron, Fe	97.25 - 97.87 %	97.25 - 97.87 %	As remainder
Manganese, Mn	1.6 - 1.9 %	1.6 - 1.9 %
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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M134AL / 7334

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