AISI 1055 Steel, cold drawn, annealed, 19-32 mm (0.75-1.25 in) round

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AISI 1055 Steel, cold drawn, annealed, 19-32 mm (0.75-1.25 in) round
Categories:	Metal; Ferrous Metal; Carbon Steel; AISI 1000 Series Steel; High Carbon Steel
Key Words:	UNS G10550, EN43C, carbon steels
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Physical Properties	Metric	English	Comments

Density	7.85 g/cc	0.284 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	197	197
Hardness, Knoop	219	219	Converted from Brinell
Hardness, Rockwell B	92	92	Converted from Brinell
Hardness, Rockwell C	13	13	Converted from Brinell hardness. Value below normal HRC range, for comparison purposes only.
Hardness, Vickers	207	207	Converted from Brinell
Tensile Strength, Ultimate	660 MPa	95700 psi
Tensile Strength, Yield	560 MPa	81200 psi
Elongation at Break	10 %	10 %	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	55 %	55 %	Based on AISI 1212 steel = 100%
Shear Modulus	80.0 GPa	11600 ksi	Typical for steel

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000163 ohm-cm @Temperature 0.000 °C	0.0000163 ohm-cm @Temperature 32.0 °F	condition of specimen unknown
	0.0000224 ohm-cm @Temperature 100 °C	0.0000224 ohm-cm @Temperature 212 °F	condition of specimen unknown

Thermal Properties	Metric	English	Comments
CTE, linear	11.0 µm/m-°C @Temperature 20.0 - 100 °C	6.11 µin/in-°F @Temperature 68.0 - 212 °F
	12.4 µm/m-°C @Temperature 0.000 - 300 °C	6.89 µin/in-°F @Temperature 32.0 - 572 °F
	13.9 µm/m-°C @Temperature 0.000 - 500 °C	7.72 µin/in-°F @Temperature 32.0 - 932 °F
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	0.50 - 0.60 %	0.50 - 0.60 %
Iron, Fe	98.41 - 98.9 %	98.41 - 98.9 %	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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M1055A / 7004

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