AISI 1137 Steel, oil quenched from 855°C (1570°F), 650°C (1200°F) temper, round

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AISI 1137 Steel, oil quenched from 855°C (1570°F), 650°C (1200°F) temper, round
Categories:	Metal; Ferrous Metal; Carbon Steel; AISI 1000 Series Steel; Medium Carbon Steel
Material Notes:	Medium strength and good machinability. Applications include spline shafts, and studs, bolts, and nuts with machined threads. Post oil quenched hardness: 48 HRC surface, 43 HRC half-radius, 42 HRC center.
Key Words:	UNS G11370, AMS 5024 C, ASTM A29, ASTM A108, ASTM A311, FED QQ-S-637 (C1137), SAE J403, SAE J412, SAE J414
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Physical Properties	Original Value	Comments

Density	7.87 g/cc	Typical for steel.

Mechanical Properties	Original Value	Comments
Hardness, Brinell	192 @Diameter 102 mm
	197 @Diameter 50.8 mm
	201 @Diameter 25.4 mm
	217 @Diameter 12.7 mm
Hardness, Knoop	214 @Diameter 102 mm	Converted from Brinell
	219 @Diameter 50.8 mm	Converted from Brinell
	223 @Diameter 25.4 mm	Converted from Brinell
	240 @Diameter 12.7 mm	Converted from Brinell
Hardness, Rockwell B	91 @Diameter 102 mm	Converted from Brinell
	92 @Diameter 50.8 mm	Converted from Brinell
	93 @Diameter 25.4 mm	Converted from Brinell
	95 @Diameter 12.7 mm	Converted from Brinell
Hardness, Rockwell C	11 @Diameter 102 mm	Converted from Brinell hardness. Value below normal HRC range, for comparison purposes only.
	13 @Diameter 25.4 mm	Converted from Brinell hardness. Value below normal HRC range, for comparison purposes only.
	13 @Diameter 50.8 mm	Converted from Brinell hardness. Value below normal HRC range, for comparison purposes only.
	17 @Diameter 12.7 mm	Converted from Brinell hardness. Value below normal HRC range, for comparison purposes only.
Hardness, Vickers	201 @Diameter 102 mm	Converted from Brinell
	207 @Diameter 50.8 mm	Converted from Brinell
	211 @Diameter 25.4 mm	Converted from Brinell
	228 @Diameter 12.7 mm	Converted from Brinell
Tensile Strength, Ultimate	650 MPa @Diameter 102 mm
	670 MPa @Diameter 50.8 mm
	675 MPa @Diameter 25.4 mm
	717 MPa @Diameter 12.7 mm
Tensile Strength, Yield	385 MPa @Diameter 102 mm
	395 MPa @Diameter 50.8 mm
	475 MPa @Diameter 25.4 mm
	550 MPa @Diameter 12.7 mm
Elongation at Break	23.5 % @Diameter 25.4 mm	in 50 mm
	24 % @Diameter 102 mm	in 50 mm
	24.6 % @Diameter 12.7 mm	in 50 mm
	25 % @Diameter 50.8 mm	in 50 mm
Reduction of Area	60.8 % @Diameter 25.4 mm
	61.1 % @Diameter 102 mm
	63.6 % @Diameter 12.7 mm
	64.1 % @Diameter 50.8 mm
Modulus of Elasticity	200 GPa	Typical for steel
Bulk Modulus	160 GPa	Typical for steel.
Poissons Ratio	0.29	Typical For Steel
Shear Modulus	80.0 GPa	Typical for steel.
Izod Impact	50.0 J	annealed at 790°C (1450°F)
	64.0 J	normalized at 900°C (1650°F)
	83.0 J	as rolled

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.0000170 ohm-cm @Temperature 20.0 °C	condition of specimen unknown

Thermal Properties	Original Value	Comments
CTE, linear	11.5 µm/m-°C @Temperature 20.0 °C	Typical steel
	12.2 µm/m-°C @Temperature 0.000 - 300 °C	Typical for steel
	13.9 µm/m-°C @Temperature 0.000 - 500 °C	Typical for steel
Specific Heat Capacity	0.472 J/g-°C	Typical steel
Thermal Conductivity	51.9 W/m-K	Typical steel

Component Elements Properties	Original Value	Comments
Carbon, C	0.32 - 0.39 %
Iron, Fe	97.79 - 98.25 %	As remainder
Manganese, Mn	1.35 - 1.65 %
Phosphorus, P	<= 0.040 %
Sulfur, S	0.080 - 0.13 %

References for this datasheet.

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M113AZ / 7211

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