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Elmet Technologies

Bohler-Uddeholm BÖHLER S400(M7) High Speed Steel
Categories: Metal; Ferrous Metal; Tool Steel
Material Notes: Description: High alloyed molybdenum high speed steel with good resistance and high toughness.

Applications: Taps, twist drills, reamers, milling tools, broaches tools, cold extrusion dies.

Standards: DIN/EN 1.3348 HS2-9-2, AISI M7, UNS T11307, JIS SKH58
Key Words: EN 1.3348; HS2-9-2; AISI M7; UNS T11307
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Density 8.30 g/cc0.300 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Modulus of Elasticity 217 GPa31500 ksi
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.0000650 ohm-cm0.0000650 ohm-cm
 
Thermal PropertiesMetricEnglishComments
CTE, linear  11.0 µm/m-°C
@Temperature 100 °C		6.11 µin/in-°F
@Temperature 212 °F
 11.5 µm/m-°C
@Temperature 200 °C		6.39 µin/in-°F
@Temperature 392 °F
 11.9 µm/m-°C
@Temperature 300 °C		6.61 µin/in-°F
@Temperature 572 °F
 12.3 µm/m-°C
@Temperature 400 °C		6.83 µin/in-°F
@Temperature 752 °F
 12.4 µm/m-°C
@Temperature 500 °C		6.89 µin/in-°F
@Temperature 932 °F
 12.5 µm/m-°C
@Temperature 600 °C		6.94 µin/in-°F
@Temperature 1110 °F
 12.5 µm/m-°C
@Temperature 700 °C		6.94 µin/in-°F
@Temperature 1290 °F
Specific Heat Capacity 0.460 J/g-°C0.110 BTU/lb-°F
Thermal Conductivity 19.0 W/m-K132 BTU-in/hr-ft²-°F
 
Component Elements PropertiesMetricEnglishComments
Carbon, C 1.02 %1.02 %
Chromium, Cr 3.8 %3.8 %
Iron, Fe 82.18 %82.18 %As remainder
Manganese, Mn 0.30 %0.30 %
Molybdenum, Mo 8.6 %8.6 %
Silicon, Si 0.40 %0.40 %
Tungsten, W 1.8 %1.8 %
Vanadium, V 1.9 %1.9 %

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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