Ovako 38MnVS6 7221 Steel, +AR

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Ovako 38MnVS6 7221 Steel, +AR
Categories:	Metal; Ferrous Metal; Alloy Steel
Material Notes:	General Information: Grade 38MnVS6 is a micro-alloyed medium carbon steel for general purposes. The steel is recommended for applications demanding high mechanical properties and smooth surfaces. 482A - Ingot cast variant 7221 - Continuous cast variant. SB9857 - Continuous cast variant. Information provided by Ovako
Key Words:	SB9857 - 39MnV5, Ovako482A, 482, SB482, Imatra482
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Physical Properties	Original Value	Comments

Density	7.80 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Brinell	250 - 300 @Thickness 22.0 - 120 mm	Round bar
Tensile Strength	850 - 1000 MPa @Thickness 22.0 - 120 mm	Round bar
Tensile Strength, Yield	>= 580 MPa @Thickness 22.0 - 120 mm	Round bar
Elongation at Break	12 % @Thickness 22.0 - 120 mm	Round bar
Reduction of Area	25 % @Thickness 22.0 - 120 mm	Round bar
Modulus of Elasticity	210 GPa
Poissons Ratio	0.30
Shear Modulus	80.0 GPa

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.00000200 - 0.00000250 ohm-cm

Thermal Properties	Original Value	Comments
CTE, linear	12.0 µm/m-°C @Temperature 20.0 - 300 °C
Specific Heat Capacity	0.460 - 0.480 J/g-°C @Temperature 50.0 - 100 °C
Thermal Conductivity	40.0 - 45.0 W/m-K	Ambient temperature
Transformation Temperature	330 °C	MS
	720 °C	AC1
	780 °C	AC3

Component Elements Properties	Original Value	Comments
Aluminum, Al	0.010 - 0.040 %
Carbon, C	0.36 - 0.41 %
Chromium, Cr	<= 0.30 %
Iron, Fe	97.02 - 98.19 %	As Balance
Manganese, Mn	1.0 - 1.4 %
Molybdenum, Mo	0.020 - 0.060 %
Nitrogen, N	0.010 - 0.018 %
Phosphorus, P	<= 0.025 %
Silicon, Si	0.30 - 0.50 %
Sulfur, S	0.010 - 0.025 %
Vanadium, V	0.10 - 0.20 %

Descriptive Properties
Weldability	CEV 0.68_max
	Pcm 0.498_max

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NOVAKO275 / 234574

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