Latrobe Corsair™ ASTM M3-1 High Speed Steel

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Latrobe Corsair™ ASTM M3-1 High Speed Steel
Categories:	Metal; Ferrous Metal; Alloy Steel; Carbon Steel; High Carbon Steel; Tool Steel
Material Notes:	CORSAIR (M3-1) contains carbon and vanadium levels that are intermediate between those of Double Six (M2) and Crusader (M3-2). This gives the steel a fine balance of wear resistance and grindability. Corsair is an excellent steel for cutting tools such as broaches and form tools where both improved tool life and grindability are important considerations. Typical applications for Corsair high speed steel include form tools, spade drills, milling cutters and broaches. Information Provided by Timken Latrobe Steel. Timken sold Latrobe in December 2006. They are now Latrobe Specialty Steels Co.
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Physical Properties	Original Value	Comments

Specific Gravity	8.17 g/cc
Density	0.295 lb/in³

Mechanical Properties	Original Value	Comments
Hardness, Rockwell C	65	Oil Quenched from 1232°C
	66.5	Oil Quenched from 1149°C
	66.5	Oil Quenched from 1177°C
Modulus of Elasticity	30000 ksi
Machinability	40 - 45 %	1% Carbon Steel
Izod Impact Unnotched	21.0 ft-lb	Oil Quenched at 1204°C; 510°C Temper Temperature
	26.0 ft-lb	Oil Quenched at 1204°C; 482°C Temper Temperature
	32.0 ft-lb	Oil Quenched at 1177°C; 482°C Temper Temperature
	43.0 ft-lb	Oil Quenched at 1204°C; 622°C Temper Temperature
	45.0 ft-lb	Oil Quenched at 1177°C; 622°C Temper Temperature
	47.0 ft-lb	Oil Quenched at 1177°C; 566°C Temper Temperature

Thermal Properties	Original Value	Comments
CTE, linear	11.12 µm/m-°C @Temperature 21.0 - 204 °C
	12.4 µm/m-°C @Temperature 21.0 - 358 °C

Processing Properties	Original Value	Comments
Processing Temperature	835 °C	Critical Temperaure Ac1

Component Elements Properties	Original Value	Comments
Carbon, C	1.02 %
Chromium, Cr	4.1 %
Iron, Fe	80.93 %
Manganese, Mn	0.25 %
Molybdenum, Mo	5.0 %
Silicon, Si	0.30 %
Tungsten, W	6.0 %
Vanadium, V	2.4 %

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 go back to viewing the property data in MatWeb's normal format.

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NTIMK064 / 19411

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