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Rulon Bearings

International Mold Steel Daido DRM2 Matrix High-Speed Steel
Categories: Metal; Ferrous Metal; Tool Steel

Material Notes: This matrix type high speed tool steel is available for warm and cold forging tools where critical performance is required. DRM2 prolongs service life due to its higher hardness and toughness than those of conventional grades.

Information provided by International Mold Steel

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Mechanical PropertiesMetricEnglishComments
Hardness, Brinell <= 235<= 235
Hardness, Rockwell C 56 - 6256 - 62
 57
@Treatment Temp. 600 °C
57
@Treatment Temp. 1110 °F
 62
@Treatment Temp. 560 °C
62
@Treatment Temp. 1040 °F
 62.5
@Treatment Temp. 520 °C
62.5
@Treatment Temp. 968 °F
Tensile Modulus 210 GPa30500 ksi
Fatigue Strength  800 MPa
@# of Cycles 1.00e+7
116000 psi
@# of Cycles 1.00e+7
 950 MPa
@# of Cycles 1.00e+6
138000 psi
@# of Cycles 1.00e+6
 1200 MPa
@# of Cycles 20000
174000 psi
@# of Cycles 20000
Charpy Impact Unnotched 60.0 J/cm²286 ft-lb/in²62.5 HRC
 145 J/cm²690 ft-lb/in²58 HRC
 
Thermal PropertiesMetricEnglishComments
CTE, linear  11.0 µm/m-°C
@Temperature 20.0 - 100 °C
6.11 µin/in-°F
@Temperature 68.0 - 212 °F
 11.8 µm/m-°C
@Temperature 20.0 - 300 °C
6.56 µin/in-°F
@Temperature 68.0 - 572 °F
 12.3 µm/m-°C
@Temperature 20.0 - 500 °C
6.83 µin/in-°F
@Temperature 68.0 - 932 °F
 12.4 µm/m-°C
@Temperature 20.0 - 700 °C
6.89 µin/in-°F
@Temperature 68.0 - 1290 °F
Specific Heat Capacity  0.458 J/g-°C
@Temperature 25.0 °C
0.109 BTU/lb-°F
@Temperature 77.0 °F
 0.555 J/g-°C
@Temperature 300 °C
0.133 BTU/lb-°F
@Temperature 572 °F
 0.669 J/g-°C
@Temperature 500 °C
0.160 BTU/lb-°F
@Temperature 932 °F
 0.910 J/g-°C
@Temperature 700 °C
0.217 BTU/lb-°F
@Temperature 1290 °F
Thermal Conductivity  23.2 W/m-K
@Temperature 25.0 °C
161 BTU-in/hr-ft²-°F
@Temperature 77.0 °F
 27.9 W/m-K
@Temperature 300 °C
194 BTU-in/hr-ft²-°F
@Temperature 572 °F
 28.8 W/m-K
@Temperature 500 °C
200 BTU-in/hr-ft²-°F
@Temperature 932 °F
 29.6 W/m-K
@Temperature 700 °C
205 BTU-in/hr-ft²-°F
@Temperature 1290 °F

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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