Latrobe Lescalloy® M50 VIM-VAR High Performance Bearing Steel

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Latrobe Lescalloy® M50 VIM-VAR High Performance Bearing Steel
Categories:	Metal; Ferrous Metal; Alloy Steel; Carbon Steel; High Carbon Steel
Material Notes:	LESCALLOY M50 VIM-VAR steel is a through-hardening grade with high hardness and high compressive strength at elevated temperatures. It is produced exclusively as a double vacuum melted produced using vacuum induction melting plus VAC-ARC remelting. This VIM-ARC process provides the optimum in control and reproducibility of chemistry, micro cleanliness and superior fatigue resistance. 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

Density	0.290 lb/in³

Mechanical Properties	Original Value	Comments
Hardness, Rockwell C	62	RT
	35 @Temperature 649 °C
	55 @Temperature 482 °C
	60 @Temperature 204 °C
Modulus of Elasticity	29500 ksi
	12500 ksi @Temperature 649 °C
	21500 ksi @Temperature 316 °C
Machinability	65 %	1% Carbon Tool

Thermal Properties	Original Value	Comments
CTE, linear	10.06 µm/m-°C @Temperature -73.0 - 21.0 °C
	11.5 µm/m-°C @Temperature 21.0 - 149 °C
	13.28 µm/m-°C @Temperature 21.0 - 538 °C

Component Elements Properties	Original Value	Comments
Carbon, C	0.85 %
Chromium, Cr	4.1 %
Iron, Fe	89.3 %
Manganese, Mn	0.30 %
Molybdenum, Mo	4.25 %
Silicon, Si	0.20 %
Vanadium, V	1.0 %

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NTIMK001 / 19349

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