Ovako 29MnCrB5-2* SB28M13CB/9667 Steel, +AR

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Ovako 29MnCrB5-2* SB28M13CB/9667 Steel, +AR
Categories:	Metal; Ferrous Metal; Alloy Steel
Material Notes:	General Information: WR-Steel(Wear resistant ) WR-steel, stands for wear-resistant steel. This group of steel includes a broad range of grades with a wide range of hardness levels 350 – 650 HV, dimensions and steel grades designed to give you a wear-resistant advantage when making product exposed to a high degree of wear and where service life is important. WR-steels are characterized by consistent properties and cost effectiveness due to optimized alloy content for different end applications. Boron grade 29MnCrB5-2 is a non-standardized grade located in between 27MnCrB5-2 and 33MnCrB5-2. It is suitable for wear parts, but may be heat-treated for good toughness if needed. A tight chemical composition ensures repeatable heat-treatment response. Information provided by Ovako
Key Words:	27MnCrB5-2, 33MnCrB5-2, 15B35H, SB9667
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Physical Properties	Original Value	Comments

Density	7.80 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Brinell	215 @Thickness 20.0 - 70.0 mm	Flat bar
	250 @Thickness 5.00 - 20.0 mm	Flat bar
	<= 265 @Thickness 20.0 - 70.0 mm	Flat bar
	<= 275 @Thickness 5.00 - 20.0 mm	Flat bar
Tensile Strength	650 - 730 MPa @Thickness 20.0 - 70.0 mm	Flat bar
	775 MPa @Thickness 5.00 - 20.0 mm	Flat bar
Tensile Strength, Yield	>= 430 MPa @Thickness 20.0 - 70.0 mm	R_el, Flat bar
	>= 530 MPa @Thickness 5.00 - 20.0 mm	R_el, Flat bar
Elongation at Break	17 % @Thickness 5.00 - 20.0 mm	Flat bar
	17 % @Thickness 20.0 - 70.0 mm	Flat 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	368 °C	MS
	720 °C	AC1
	781 °C	AC3

Component Elements Properties	Original Value	Comments
Boron, B	0.0020 - 0.0050 %
Carbon, C	0.28 - 0.33 %
Chromium, Cr	0.25 - 0.60 %
Iron, Fe	97.11 - 98.22 %	As Balance
Manganese, Mn	1.1 - 1.5 %
Phosphorus, P	<= 0.030 %
Silicon, Si	0.15 - 0.40 %
Sulfur, S	<= 0.030 %

Descriptive Properties
Weldability	CEV 0.62_max
	Pcm 0.41_max

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NOVAKO221 / 234520

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