AISI 1018 Steel, hot rolled, quenched, and tempered

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AISI 1018 Steel, hot rolled, quenched, and tempered
Categories:	Metal; Ferrous Metal; Carbon Steel; AISI 1000 Series Steel; Low Carbon Steel
Material Notes:	Medium low-carbon steel, has good weldability and slightly better machinability than lower carbon grades.
Key Words:	carbon steel, AMS 5069, ASTM A108, UNS G10180, AS 1442 K1018 (Australia), AS 1443 K1018, CSN 12020 (Czech), CSN 12022, AFNOR NF A33-101 AF42C20, DIN 1.0453, DIN C16.8, DGN B-301 1018 (Mexico), COPANT 331 1018 (Pan America), COPANT 333 1018, MST.T (Russia), ST.20A, ST.3, ST.3T, GOST M18S, GOST 23570 18ps, GOST 23570 18sp, GOST 5520 18K, GOST 5521 S, NBN 629 D37-2 (Belgium), NBN 630 E37-1, NBN 630 E37-2, NBN A21-221 C17KD, BDS 9801 S (Bulgaria), GB 715 ML3 (China), TS 302 Fe35.2 (Turkey), TS 346 Fe35, BS 970 080A17, DEF STAN95-1-1 C1018
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Physical Properties	Metric	English	Comments

Density	7.87 g/cc	0.284 lb/in³

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	475 MPa	68900 psi
Tensile Strength, Yield	275 MPa	39900 psi
Elongation at Break	38 %	38 %	In 50 mm
Reduction of Area	62 %	62 %
Modulus of Elasticity	200 GPa	29000 ksi
Bulk Modulus	159 GPa	23100 ksi	Estimated from elastic modulus
Poissons Ratio	0.29	0.29	Typical for steel
Machinability	52 %	52 %	Based on AISI 1212 steel = 100%
Shear Modulus	78.0 GPa	11300 ksi	Estimated from elastic modulus

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000159 ohm-cm @Temperature 0.000 °C	0.0000159 ohm-cm @Temperature 32.0 °F	annealed condition
	0.0000219 ohm-cm @Temperature 100 °C	0.0000219 ohm-cm @Temperature 212 °F	annealed condition
	0.0000293 ohm-cm @Temperature 200 °C	0.0000293 ohm-cm @Temperature 392 °F	annealed condition

Thermal Properties	Metric	English	Comments
Specific Heat Capacity	0.486 J/g-°C @Temperature >=100 °C	0.116 BTU/lb-°F @Temperature >=212 °F	annealed
Thermal Conductivity	49.8 W/m-K	346 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	98.81 - 99.26 %	98.81 - 99.26 %	As remainder
Manganese, Mn	0.60 - 0.90 %	0.60 - 0.90 %
Phosphorus, P	<= 0.040 %	<= 0.040 %
Sulfur, S	<= 0.050 %	<= 0.050 %

References for this datasheet.

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M1018B / 6810

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