Crucible Steel AIRDI® 150 (AISI D2) Tool Steel

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Crucible Steel AIRDI® 150 (AISI D2) Tool Steel
Categories:	Metal; Ferrous Metal; Carbon Steel; High Carbon Steel; Tool Steel; Air-Hardening Steel
Material Notes:	Airdi 150 (AISI D2) is an air-hardening, high carbon, high chromium tool steel, heat treatable to HRC 60-62. It offers excellent abrasion resistance, due to a large volume of carbides in the microstructure. Airdi 150 (D2) has been widely used for many years in cold work applications requiring very high wear resistance. It is machinable in the annealed condition and, like other air-hardening tool steels, exhibits minimal distortion on hardening. Information provided by Crucible Specialty Metals.
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Physical Properties	Original Value	Comments

Density	7.695 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Brinell	221 - 225	Annealed
Hardness, Rockwell C	60 - 62
Modulus of Elasticity	207 GPa
Charpy Impact	28.0 J	Austenitizing Temperature- 1010°C

Thermal Properties	Original Value	Comments
CTE, linear	10.4 µm/m-°C @Temperature 20.0 - 95.0 °C
	11.3 µm/m-°C @Temperature 20.0 - 205 °C
	12.6 µm/m-°C @Temperature 20.0 - 540 °C
Thermal Conductivity	20.9 W/m-K @Temperature 95.0 °C
	24.2 W/m-K @Temperature 315 °C
	25.6 W/m-K @Temperature 540 °C
Shrinkage	-0.0250 % @Treatment Temp. 1010 °C	Hardening

Component Elements Properties	Original Value	Comments
Carbon, C	1.55 %
Chromium, Cr	11.5 %
Iron, Fe	85.25 %	As Remainder
Molybdenum, Mo	0.90 %
Vanadium, V	0.80 %

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NCRUC016 / 16009

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