AISI 1021 Steel, cold drawn

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AISI 1021 Steel, cold drawn
Categories:	Metal; Ferrous Metal; Carbon Steel; AISI 1000 Series Steel; Low Carbon Steel
Material Notes:	Has fair machinability, fair to good weldability, and excellent cold formability. Often used in cold heading and extruding.
Key Words:	UNS G10210, ASTM A29, ASTM A510, ASTM A519, ASTM A545, ASTM A548, ASTM A576, carbon steels, ASTM A659, SAE J403, SAE J412, SAE J414, BS 970 070M20, EN3, BS 970 080M20
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Physical Properties	Metric	English	Comments

Density	7.858 g/cc	0.2839 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	131	131
Hardness, Knoop	140	140	Converted from Brinell
Hardness, Rockwell B	68	68	Converted from Brinell
Hardness, Vickers	126	126	Converted from Brinell
Tensile Strength, Ultimate	470 MPa	68200 psi
Tensile Strength, Yield	395 MPa	57300 psi
Elongation at Break	15 %	15 %	In 50 mm
Reduction of Area	40 %	40 %
Modulus of Elasticity	205 GPa	29700 ksi	Typical for steel
Bulk Modulus	160 GPa	23200 ksi	Typical for steel
Poissons Ratio	0.29	0.29	Typical For Steel
Machinability	70 %	70 %	Based on AISI 1212 steel = 100%
Shear Modulus	80.0 GPa	11600 ksi	Typical for steel

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000159 ohm-cm @Temperature 0.000 °C	0.0000159 ohm-cm @Temperature 32.0 °F	estimated by comparison with similar steel alloys

Thermal Properties	Metric	English	Comments
Specific Heat Capacity	0.472 J/g-°C	0.113 BTU/lb-°F	Typical steel
Thermal Conductivity	49.8 W/m-K	346 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	98.78 - 99.23 %	98.78 - 99.23 %	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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M1021A / 6840

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