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Elmet Technologies

AISI Type D2 Tool Steel, air-quenched from 1010°C, tempered at 315°C
Categories: Metal; Ferrous Metal; Carbon Steel; High Carbon Steel; Tool Steel; Cold Work Steel
Material Notes: High-carbon, high-chromium tool steel. Virtually no deformation during hardening. High wear resistance which increases with C and V content.
Key Words: UNS T30402, ASTM A681, FED QQ-T-570, SAE J437, SAE J438, DIN 1.2379, B. JIS G4404(83) SKD11 SKD-11 SDK 11
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Physical PropertiesMetricEnglishComments
Density 7.70 g/cc0.278 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Knoop 642642Converted from Rockwell C hardness.
Hardness, Rockwell C 5656
Hardness, Vickers 621621
Izod Impact Unnotched 79.0 J58.3 ft-lb
 
Thermal PropertiesMetricEnglishComments
CTE, linear  10.5 µm/m-°C
@Temperature 20.0 - 100 °C		5.83 µin/in-°F
@Temperature 68.0 - 212 °F
 11.8 µm/m-°C
@Temperature 0.000 - 300 °C		6.56 µin/in-°F
@Temperature 32.0 - 572 °F
 12.5 µm/m-°C
@Temperature 0.000 - 500 °C		6.94 µin/in-°F
@Temperature 32.0 - 932 °F
 
Processing PropertiesMetricEnglishComments
Processing Temperature 205 - 540 °C401 - 1000 °FTempering Temperature
 980 - 1025 °C1800 - 1877 °FHardening Temperature
Annealing Temperature 870 - 900 °C1600 - 1650 °F
 
Component Elements PropertiesMetricEnglishComments
Carbon, C 1.4 - 1.6 %1.4 - 1.6 %
Chromium, Cr 11 - 13 %11 - 13 %
Cobalt, Co <= 1.0 %<= 1.0 %
Iron, Fe 80.8 - 86.9 %80.8 - 86.9 %As Balance
Manganese, Mn <= 0.60 %<= 0.60 %
Molybdenum, Mo 0.70 - 1.2 %0.70 - 1.2 %
Phosphorus, P <= 0.030 %<= 0.030 %
Silicon, Si <= 0.60 %<= 0.60 %
Sulfur, S <= 0.030 %<= 0.030 %
Vanadium, V <= 1.1 %<= 1.1 %

References for this datasheet.

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