AISI 8630 Steel, water quenched 845°C (1550°F), 540°C (1000°F) temper, 25 mm (1 in.) round

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AISI 8630 Steel, water quenched 845°C (1550°F), 540°C (1000°F) temper, 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:	Water quenched 845°C (1550°F), 540°C temper, 25 mm round. Post water quenched hardness 52 HRC surface, 48 HRC half-radius, 43 HRC center
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	269
Hardness, Knoop	294	Converted from Brinell
Hardness, Rockwell B	99	Converted from Brinell
Hardness, Vickers	284	Converted from Brinell
Tensile Strength, Ultimate	931 MPa
Tensile Strength, Yield	850 MPa
Elongation at Break	18.7 %	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.

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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M863AQ / 8397

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