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Elmet Technologies

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AISI Type D2 Tool Steel, air-quenched from 1010°C, tempered at 450°C
Categories: Metal; Ferrous Metal; Carbon Steel; High Carbon Steel; Tool Steel; Cold Work Steel
Material Notes: high carbon, high chromium
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 PropertiesOriginal ValueComments
Density 7.70 g/cc
 
Mechanical PropertiesOriginal ValueComments
Hardness, Knoop 682Converted from Rockwell C hardness.
Hardness, Rockwell C 58
Hardness, Vickers 661
Izod Impact Unnotched 63.0 J
 
Thermal PropertiesOriginal ValueComments
CTE, linear 10.5 µm/m-°C
@Temperature 20.0 - 100 °C
 11.8 µm/m-°C
@Temperature 0.000 - 300 °C
 12.5 µm/m-°C
@Temperature 0.000 - 500 °C
 
Processing PropertiesOriginal ValueComments
Processing Temperature 205 - 540 °CTempering Temperature
 980 - 1025 °CHardening Temperature
Annealing Temperature 870 - 900 °C
 
Component Elements PropertiesOriginal ValueComments
Carbon, C 1.4 - 1.6 %
Chromium, Cr 11 - 13 %
Cobalt, Co <= 1.0 %
Iron, Fe 80.8 - 86.9 %As Balance
Manganese, Mn <= 0.60 %
Molybdenum, Mo 0.70 - 1.2 %
Phosphorus, P <= 0.030 %
Silicon, Si <= 0.60 %
Sulfur, S <= 0.030 %
Vanadium, V <= 1.1 %

References for this datasheet.

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