AISI 1020 Steel, hot rolled, quenched and tempered, 0.2% offset, 19-32 mm (0.75-1.25 in) round

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AISI 1020 Steel, hot rolled, quenched and tempered, 0.2% offset, 19-32 mm (0.75-1.25 in) round
Categories:	Metal; Ferrous Metal; Carbon Steel; AISI 1000 Series Steel; Low Carbon Steel
Material Notes:	Applications include parts in the case hardened condition where core strength is not critical, and for shafts of larger cross section that are not highly stressed. Other uses include lightly stressed gears with hard wearing surfaces and case hardened pins and chains.
Key Words:	UNS G10200, AMS 5032, AMS 5045, ASTM A29, ASTM A108, ASTM A510, ASTM A519, ASTM A29, A108, A510, A512, A513, A519, A544, A575 M10120, A576, A635, A659, A827, A830, BS 970 040A20, 050A20 (En2C), 050A20 (En2D), 060A20, BS 970 Part 1 070M20, DEF STAN95-1-1 C1020, SAE J412, SAE J414, DIN 1.0402, AFNOR CC 20, UNI C 20, SS14 1450 (Sweden), SAE J403
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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	163	163
Hardness, Knoop	184	184	Converted from Brinell
Hardness, Rockwell B	84	84	Converted from Brinell
Hardness, Vickers	170	170	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	186 GPa	27000 ksi
Bulk Modulus	148 GPa	21500 ksi	calculated from elastic modulus and Poisson's ratio
Poissons Ratio	0.29	0.29
Machinability	52 %	52 %	Based on 100% machinability for AISI 1212 steel.
Shear Modulus	72.0 GPa	10400 ksi	calculated from elastic modulus and Poisson's ratio
Charpy Impact	16.9 J @Temperature -30.0 °C	12.5 ft-lb @Temperature -22.0 °F
	18.0 J @Temperature -18.0 °C	13.3 ft-lb @Temperature -0.400 °F
	20.0 J @Temperature -3.00 °C	14.8 ft-lb @Temperature 26.6 °F
	24.0 J @Temperature 10.0 °C	17.7 ft-lb @Temperature 50.0 °F
	41.0 J @Temperature 38.0 °C	30.2 ft-lb @Temperature 100 °F
	54.0 J @Temperature 65.0 °C	39.8 ft-lb @Temperature 149 °F
	61.0 J @Temperature 95.0 °C	45.0 ft-lb @Temperature 203 °F
	68.0 J @Temperature 150 °C	50.2 ft-lb @Temperature 302 °F

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000159 ohm-cm @Temperature 0.000 °C	0.0000159 ohm-cm @Temperature 32.0 °F	condition unknown
	0.0000219 ohm-cm @Temperature 100 °C	0.0000219 ohm-cm @Temperature 212 °F	condition unknown
	0.0000292 ohm-cm @Temperature 200 °C	0.0000292 ohm-cm @Temperature 392 °F	condition unknown

Thermal Properties	Metric	English	Comments
CTE, linear	11.7 µm/m-°C @Temperature 20.0 - 100 °C	6.50 µin/in-°F @Temperature 68.0 - 212 °F
	12.1 µm/m-°C @Temperature 20.0 - 200 °C	6.72 µin/in-°F @Temperature 68.0 - 392 °F
	12.8 µm/m-°C @Temperature 20.0 - 300 °C	7.11 µin/in-°F @Temperature 68.0 - 572 °F
	13.3 µm/m-°C @Temperature 20.0 - 400 °C	7.39 µin/in-°F @Temperature 68.0 - 752 °F
	13.9 µm/m-°C @Temperature 20.0 - 500 °C	7.72 µin/in-°F @Temperature 68.0 - 932 °F
	14.4 µm/m-°C @Temperature 20.0 - 600 °C	8.00 µin/in-°F @Temperature 68.0 - 1110 °F
	14.8 µm/m-°C @Temperature 20.0 - 700 °C	8.22 µin/in-°F @Temperature 68.0 - 1290 °F
Specific Heat Capacity	0.486 J/g-°C @Temperature >=100 °C	0.116 BTU/lb-°F @Temperature >=212 °F	condition unknown
	0.519 J/g-°C @Temperature 150 - 200 °C	0.124 BTU/lb-°F @Temperature 302 - 392 °F
	0.599 J/g-°C @Temperature 350 - 400 °C	0.143 BTU/lb-°F @Temperature 662 - 752 °F
Thermal Conductivity	51.9 W/m-K	360 BTU-in/hr-ft²-°F	Typical steel

Component Elements Properties	Metric	English	Comments
Carbon, C	0.17 - 0.23 %	0.17 - 0.23 %
Iron, Fe	99.08 - 99.53 %	99.08 - 99.53 %	As remainder
Manganese, Mn	0.30 - 0.60 %	0.30 - 0.60 %
Phosphorus, P	<= 0.040 %	<= 0.040 %
Sulfur, S	<= 0.050 %	<= 0.050 %

References for this datasheet.

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M1020C / 6826

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