AISI 8630 Steel, normalized, 25 mm (1 in.) round

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AISI 8630 Steel, normalized, 25 mm (1 in.) round
Categories:	Metal; Ferrous Metal; Alloy Steel; AISI 8000 Series Steel; Low Alloy Steel; Carbon Steel; Medium Carbon Steel
Material Notes:	Heated to 870°C, air cooled, 25 mm round
Key Words:	ASTM A505, ASTM A519, MIL-SPEC MIL-S-16974, SAE J404, SAE J412, SAE J770, DIN 1.6545, UNI 30 NiCrMo 2 KB, UNS G86300, AMS 6280, AMS 6281, AMS 6530, AMS 6550, ASTM A322, ASTM A331
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Physical Properties	Original Value	Comments

Density	7.85 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Brinell	187
Hardness, Knoop	209	Converted from Brinell
Hardness, Rockwell B	90	Converted from Brinell
Hardness, Rockwell C	10	Converted from Brinell hardness. Value below normal HRC range, for comparison only.
Hardness, Vickers	196	Converted from Brinell
Tensile Strength, Ultimate	650 MPa
Tensile Strength, Yield	425 MPa
Elongation at Break	23.5 %	in 50 mm
Modulus of Elasticity	205 GPa	Typical for steel
Bulk Modulus	160 GPa	Typical for steel
Poissons Ratio	0.29	Calculated
Machinability	70 %	annealed and cold drawn. Based on AISI 1212 steel = 100%.
Shear Modulus	80.0 GPa	Typical for steel.
Izod Impact	95.0 J

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.0000234 ohm-cm	Typical steel

Thermal Properties	Original Value	Comments
CTE, linear	11.2 µm/m-°C @Temperature 21.0 - 100 °C
	12.2 µm/m-°C @Temperature 21.0 - 200 °C
	14.0 µm/m-°C @Temperature 21.0 - 500 °C
Specific Heat Capacity	0.475 J/g-°C	Typical steel
Thermal Conductivity	46.6 W/m-K	Typical steel

Component Elements Properties	Original Value	Comments
Carbon, C	0.28 - 0.33 %
Chromium, Cr	0.40 - 0.60 %
Iron, Fe	96.745 - 98.02 %	As remainder
Manganese, Mn	0.65 - 0.95 %
Molybdenum, Mo	0.15 - 0.25 %
Nickel, Ni	0.35 - 0.75 %
Phosphorus, P	<= 0.035 %
Silicon, Si	0.15 - 0.30 %
Sulfur, S	<= 0.040 %

References for this datasheet.

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M863AI / 8389

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