Latrobe Lescalloy® 410Cb High Strength Stainless Steel

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Latrobe Lescalloy® 410Cb High Strength Stainless Steel
Categories:	Metal; Ferrous Metal; Stainless Steel
Material Notes:	LESCALLOY 17-4 VAC-ARC steel is a precipitation hardening martensitic stainless steel. A wide range of mechanical properties is available via simple aging within a 900-1150°F (482-621°C) temperature range. Vacuum arc remelting provides low gas content, superior cleanliness and optimum transverse properties. 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	7.75 g/cc
Density	0.280 lb/in³

Mechanical Properties	Original Value	Comments
Hardness, Brinell	255	4 in. Test Specimen
	255	5.25 in. Test Specimen
Tensile Strength, Ultimate	123 ksi	5.25 in. Test Specimen
	124 ksi	4 in. Test Specimen
Tensile Strength, Yield	724 MPa @Strain 0.2 %	5.25 in. Test Specimen
	731 MPa @Strain 0.2 %	4 in. Test Specimen
Elongation at Break	21 %	4 in. Test Specimen
	22 %	5.25 in. Test Specimen
Reduction of Area	65 - 66 %	4 in. Test Specimen
	66 %	5.25 in. Test Specimen
Modulus of Elasticity	29000 ksi
Machinability	50 - 55 %	Mild Steel
Charpy Impact	60.0 J	V-Notch; 5.25 in. Test Specimen
	98.0 J	V-Notch; 4 in. Test Specimen

Thermal Properties	Original Value	Comments
CTE, linear	10.1 µm/m-°C @Temperature 21.0 - 204 °C
	12.1 µm/m-°C @Temperature 20.0 - 649 °C
Specific Heat Capacity	0.110 BTU/lb-°F @Temperature 0.000 - 100 °C
Thermal Conductivity	25.0 W/m-K @Temperature 100 °C

Component Elements Properties	Original Value	Comments
Carbon, C	0.13 %
Chromium, Cr	11.6 %
Iron, Fe	86.79 %
Manganese, Mn	0.50 %
Nickel, Ni	0.60 %
Niobium, Nb (Columbium, Cb)	0.080 %
Silicon, Si	0.30 %

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NTIMK060 / 19407

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