AISI 1118 Steel, as rolled, 25 mm (1 in.) round

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AISI 1118 Steel, as rolled, 25 mm (1 in.) 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	143	143
Hardness, Knoop	163	163	Converted from Brinell
Hardness, Rockwell B	78	78	Converted from Brinell
Hardness, Vickers	149	149	Converted from Brinell
Tensile Strength, Ultimate	486 MPa	70500 psi
Tensile Strength, Yield	355 MPa	51500 psi
Elongation at Break	32.3 %	32.3 %	in 50 mm
Reduction of Area	63 %	63 %
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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M1118Q / 7170

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