AISI 51B60 Steel, oil quenched from 830°C (1525°F), 595°C (1100°F) temper, 25 mm (1 in.) round

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AISI 51B60 Steel, oil quenched from 830°C (1525°F), 595°C (1100°F) temper, 25 mm (1 in.) round
Categories:	Metal; Ferrous Metal; Alloy Steel; AISI 5000 Series Steel; Low Alloy Steel; Carbon Steel; High Carbon Steel
Material Notes:	Oil quenched from 830°C, 595°C (1100°F) temper, 25 mm round. Post oil quenched hardness 62 HRC surface, 61 HRC half-radius, 60 HRC center. Applications: automotive leaf springs.
Key Words:	UNS G51601, ASTM A322, ASTM A331, ASTM A519, SAE J404, SAE J412, SAE J770
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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	302	302
Hardness, Knoop	328	328	Converted from Brinell
Hardness, Rockwell B	99	99	Converted from Brinell
Hardness, Rockwell C	32	32	Converted from Brinell
Hardness, Vickers	319	319	Converted from Brinell
Tensile Strength, Ultimate	1000 MPa	145000 psi
Tensile Strength, Yield	869 MPa	126000 psi
Elongation at Break	18 %	18 %
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	Calculated
Machinability	55 %	55 %	Spheroidized annealed and cold drawn. Based on 100% machinability for AISI 1212 steel.
Shear Modulus	80.0 GPa	11600 ksi	Typical for steel

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000219 ohm-cm	0.0000219 ohm-cm	Typical 5000 series steel

Thermal Properties	Metric	English	Comments
Specific Heat Capacity	0.475 J/g-°C	0.114 BTU/lb-°F	Typical 5000 series steel
Thermal Conductivity	46.6 W/m-K	323 BTU-in/hr-ft²-°F	Typical steel

Component Elements Properties	Metric	English	Comments
Boron, B	0.00050 - 0.0030 %	0.00050 - 0.0030 %
Carbon, C	0.56 - 0.64 %	0.56 - 0.64 %
Chromium, Cr	0.70 - 0.90 %	0.70 - 0.90 %
Iron, Fe	97.082 - 97.8395 %	97.082 - 97.8395 %	As remainder
Manganese, Mn	0.75 - 1.0 %	0.75 - 1.0 %
Phosphorus, P	<= 0.035 %	<= 0.035 %
Silicon, Si	0.15 - 0.30 %	0.15 - 0.30 %
Sulfur, S	<= 0.040 %	<= 0.040 %

References for this datasheet.

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M516CK / 8192

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