Latrobe Lescalloy® 15-5 VAC-ARC Precipitation Hardening Stainless Steel

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Latrobe Lescalloy® 15-5 VAC-ARC Precipitation Hardening Stainless Steel
Categories:	Metal; Ferrous Metal; Martensitic; Stainless Steel; Precipitation Hardening Stainless
Material Notes:	LESCALLOY 15-5 VAC-ARC steel is a precipitation hardening martensitic stainless steel commonly considered to be a compositional modification of 17-4 with minimal delta ferrite. A wide range of mechanical properties is available via simple aging within a 900-1150°F 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

Density	0.282 lb/in³

Mechanical Properties	Original Value	Comments
Hardness, Brinell	277 - 352	H1150 - 620°C at 4 hr
	311 - 375	H1075 - 580°C at 4 hr
	388 - 444	H900 - 480°C at 1 hr
Tensile Strength, Ultimate	135 ksi	Tempered at 1150°F, 4hr
	>= 135 ksi	H1150 Condition - 620°C at 4 hr
	145 ksi	Tempered at 1075°F, 4hr
	>= 145 ksi	H1075 Condition - 580°C at 4 hr
	190 ksi	Tempered at 900°F, 1hr
	>= 190 ksi	H900 Condition - 480°C at 1 hr
Tensile Strength, Yield	724 MPa	Tempered at 1150°F, 4hr
	860 MPa	Tempered at 1075°F, 4hr
	1170 MPa	Tempered at 900°F, 1hr
	>= 724 MPa @Strain 0.2 %	H1150 Condition - 620°C at 4 hr
	>= 860 MPa @Strain 0.2 %	H1075 Condition - 580°C at 4 hr
	>= 1170 MPa @Strain 0.2 %	H900 Condition - 480°C at 1 hr
Elongation at Break	10 %	Tempered at 900°F, 1hr
	>= 10 %	H900 Condition - 480°C at 1 hr
	13 %	Tempered at 1075°F, 4hr
	>= 13 %	H1075 Condition - 580°C at 4 hr
	>= 16 %	H1150 Condition - 620°C at 4 hr
	16 %	Tempered at 1150°F, 4hr
Reduction of Area	>= 35 %	H900 Condition - 480°C at 1 hr
	35 %	Tempered at 900°F, 1hr
	35 - 50 %	Tempered at 1150°F, 4hr
	45 %	Tempered at 1075°F, 4hr
	>= 45 %	H1075 Condition - 580°C at 4 hr
	>= 50 %	H1150 Condition - 620°C at 4 hr
Tensile Modulus	28500 ksi
Poissons Ratio	0.272
Shear Modulus	11200 ksi

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.0000769 ohm-cm

Thermal Properties	Original Value	Comments
CTE, linear	11.0 µm/m-°C @Temperature 21.0 - 204 °C
	11.7 µm/m-°C @Temperature 21.0 - 427 °C
Specific Heat Capacity	0.110 BTU/lb-°F @Temperature 0.000 - 100 °C

Component Elements Properties	Original Value	Comments
Carbon, C	0.040 %
Chromium, Cr	14.75 %
Copper, Cu	3.5 %
Iron, Fe	75.61 %
Manganese, Mn	0.70 %
Nb + Ta	0.30 %
Nickel, Ni	4.75 %
Silicon, Si	0.35 %

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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NTIMK053 / 19400

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