AISI 1118 Steel, cold drawn, low temperature, stress relieved, round

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AISI 1118 Steel, cold drawn, low temperature, stress relieved, round
Categories:	Metal; Ferrous Metal; Carbon Steel; AISI 1000 Series Steel; Low Carbon Steel
Material Notes:	Applications include medium duty shafts, studs, pins, distributor cams, cam shafts, and universal joints.
Key Words:	NS G11180, ASTM A29, ASTM A107, ASTM A108, FED QQ-S-637 (C1118), 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	131 @Diameter 50.8 - 76.2 mm	131 @Diameter 2.00 - 3.00 in
	143 @Diameter 31.8 - 50.8 mm	143 @Diameter 1.25 - 2.00 in
	149 @Diameter 22.2 - 31.8 mm	149 @Diameter 0.875 - 1.25 in
	163 @Diameter 15.9 - 22.2 mm	163 @Diameter 0.625 - 0.875 in
Hardness, Knoop	150 @Diameter 50.8 - 76.2 mm	150 @Diameter 2.00 - 3.00 in	Converted from Brinell
	163 @Diameter 31.8 - 50.8 mm	163 @Diameter 1.25 - 2.00 in	Converted from Brinell
	169 @Diameter 22.2 - 31.8 mm	169 @Diameter 0.875 - 1.25 in	Converted from Brinell
	184 @Diameter 15.9 - 22.2 mm	184 @Diameter 0.625 - 0.875 in	Converted from Brinell
Hardness, Rockwell B	73 @Diameter 50.8 - 76.2 mm	73 @Diameter 2.00 - 3.00 in	Converted from Brinell
	78 @Diameter 31.8 - 50.8 mm	78 @Diameter 1.25 - 2.00 in	Converted from Brinell
	80 @Diameter 22.2 - 31.8 mm	80 @Diameter 0.875 - 1.25 in	Converted from Brinell
	84 @Diameter 15.9 - 22.2 mm	84 @Diameter 0.625 - 0.875 in	Converted from Brinell
Hardness, Vickers	136 @Diameter 50.8 - 76.2 mm	136 @Diameter 2.00 - 3.00 in	Converted from Brinell
	149 @Diameter 31.8 - 50.8 mm	149 @Diameter 1.25 - 2.00 in	Converted from Brinell
	155 @Diameter 22.2 - 31.8 mm	155 @Diameter 0.875 - 1.25 in	Converted from Brinell
	170 @Diameter 15.9 - 22.2 mm	170 @Diameter 0.625 - 0.875 in	Converted from Brinell
Tensile Strength, Ultimate	450 MPa @Diameter 50.8 - 76.2 mm	65300 psi @Diameter 2.00 - 3.00 in
	485 MPa @Diameter 31.8 - 50.8 mm	70300 psi @Diameter 1.25 - 2.00 in
	515 MPa @Diameter 22.2 - 31.8 mm	74700 psi @Diameter 0.875 - 1.25 in
	550 MPa @Diameter 15.9 - 22.2 mm	79800 psi @Diameter 0.625 - 0.875 in
Tensile Strength, Yield	380 MPa @Diameter 50.8 - 76.2 mm	55100 psi @Diameter 2.00 - 3.00 in
	415 MPa @Diameter 31.8 - 50.8 mm	60200 psi @Diameter 1.25 - 2.00 in
	450 MPa @Diameter 22.2 - 31.8 mm	65300 psi @Diameter 0.875 - 1.25 in
	485 MPa @Diameter 15.9 - 22.2 mm	70300 psi @Diameter 0.625 - 0.875 in
Elongation at Break	12 % @Diameter 50.8 - 76.2 mm	12 % @Diameter 2.00 - 3.00 in	in 50 mm
	13 % @Diameter 31.8 - 50.8 mm	13 % @Diameter 1.25 - 2.00 in	in 50 mm
	15 % @Diameter 15.9 - 22.2 mm	15 % @Diameter 0.625 - 0.875 in	in 50 mm
	15 % @Diameter 22.2 - 31.8 mm	15 % @Diameter 0.875 - 1.25 in	in 50 mm
Reduction of Area	35 % @Diameter 31.8 - 50.8 mm	35 % @Diameter 1.25 - 2.00 in
	35 % @Diameter 50.8 - 76.2 mm	35 % @Diameter 2.00 - 3.00 in
	40 % @Diameter 15.9 - 22.2 mm	40 % @Diameter 0.625 - 0.875 in
	40 % @Diameter 22.2 - 31.8 mm	40 % @Diameter 0.875 - 1.25 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	103 J	76.0 ft-lb	normalized at 925°C (1700°F)
	107 J	78.9 ft-lb	annealed at 790°C (1450°F)
	108 J	79.7 ft-lb	as rolled

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	0.14 - 0.20 %	0.14 - 0.20 %
Iron, Fe	98.03 - 98.48 %	98.03 - 98.48 %	As remainder
Manganese, Mn	1.3 - 1.6 %	1.3 - 1.6 %
Phosphorus, P	<= 0.040 %	<= 0.040 %
Sulfur, S	0.080 - 0.13 %	0.080 - 0.13 %

References for this datasheet.

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M1118H / 7161

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