Bohler-Uddeholm BÖHLER S390 MICROCLEAN® High Speed Steel

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Bohler-Uddeholm BÖHLER S390 MICROCLEAN® High Speed Steel
Categories:	Metal; Ferrous Metal; Tool Steel
Material Notes:	Description: High speed steel produced by powder-metallurgy methods with highest red hardness, compressive strength and wear resistance. The PM technology imparts to the material also excellent toughness and machinability properties, e.g.. high satisfactory grindability. Applications: Heavy-duty machining tools-Not only for the machining of steels but also for nonferrous metals such as nickel-base and titanium alloys shaper cutters hobs milling cutters broaching tools of all types taps twist drills chasing tools reamers bimetal strips for saw blades Tools used under extreme compressive stresses-e.g... precision blanking tools for high-strength materials (shaping punches and dies)
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Physical Properties	Metric	English	Comments

Density	8.10 g/cc	0.293 lb/in³

Mechanical Properties	Metric	English	Comments
Modulus of Elasticity	231 GPa	33500 ksi
Flexural Strength	3800 MPa	551000 psi	HRC 68.5
	4500 MPa	653000 psi	HRC 67.5
	4800 MPa	696000 psi	HRC 66

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000610 ohm-cm	0.0000610 ohm-cm

Thermal Properties	Metric	English	Comments
CTE, linear	10.0 µm/m-°C @Temperature 100 °C	5.56 µin/in-°F @Temperature 212 °F
	10.5 µm/m-°C @Temperature 200 °C	5.83 µin/in-°F @Temperature 392 °F
	10.8 µm/m-°C @Temperature 300 °C	6.00 µin/in-°F @Temperature 572 °F
	11.2 µm/m-°C @Temperature 400 °C	6.22 µin/in-°F @Temperature 752 °F
	11.3 µm/m-°C @Temperature 500 °C	6.28 µin/in-°F @Temperature 932 °F
	11.4 µm/m-°C @Temperature 600 °C	6.33 µin/in-°F @Temperature 1110 °F
	11.6 µm/m-°C @Temperature 700 °C	6.44 µin/in-°F @Temperature 1290 °F
Specific Heat Capacity	0.418 J/g-°C	0.100 BTU/lb-°F
Thermal Conductivity	17.0 W/m-K	118 BTU-in/hr-ft²-°F

Component Elements Properties	Metric	English	Comments
Carbon, C	1.64 %	1.64 %
Chromium, Cr	4.8 %	4.8 %
Cobalt, Co	8.0 %	8.0 %
Iron, Fe	67.46 %	67.46 %	As remainder
Manganese, Mn	0.30 %	0.30 %
Molybdenum, Mo	2.0 %	2.0 %
Silicon, Si	0.60 %	0.60 %
Tungsten, W	10.4 %	10.4 %
Vanadium, V	4.8 %	4.8 %

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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NBUCOR66 / 133739

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