Ovako 22MnB5 Steel

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Ovako 22MnB5 Steel
Categories:	Metal; Ferrous Metal; Alloy Steel
Material Notes:	General Information: Grade SB24M13B is a boron steel for general purposes without any specified mechanical properties. Its closest equivalent is found in the standard number 22MnB5.This grade is suitable to serve as chains (side-links) in materials handling equipment of various kinds that are exposed to heavy wear and varying stresses (bending, tensile, fatigue). This grade also works well as wear parts in snow ploughs/graders and in the machinery of agriculture machines because of its good hardness and toughness in heat-treated condition in dimensions up to Ø 40 mm or equivalent thickness. Information provided by Ovako
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Physical Properties	Original Value	Comments

Density	7.80 g/cc

Mechanical Properties	Original Value	Comments
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	400 °C	MS
	719 °C	AC1
	790 °C	AC3

Component Elements Properties	Original Value	Comments
Boron, B	0.00080 - 0.0050 %
Carbon, C	0.19 - 0.25 %
Chromium, Cr	<= 0.40 %
Iron, Fe	97.51 - 98.71 %	As Balance
Manganese, Mn	1.1 - 1.4 %
Phosphorus, P	<= 0.025 %
Silicon, Si	<= 0.40 %
Sulfur, S	<= 0.015 %

Descriptive Properties
Weldability	CEV 0.52_max
	Pcm 0.33_max

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NOVAKO174 / 234473

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