Latrobe Lescalloy® 4330+V VAC-ARC High Strength Alloy Steel

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Latrobe Lescalloy® 4330+V VAC-ARC High Strength Alloy Steel
Categories:	Metal; Ferrous Metal; Alloy Steel; Low Alloy Steel; Carbon Steel; High Carbon Steel
Material Notes:	LESCALLOY 4330+V VAC-ARC steel is a modification of 4330 steel with hardenability and other properties improved by the addition of vanadium. It is a low alloy steel capable of being heat treated to high strength levels. The alloy is primarily used in the 220 to 240 ksi (1517-1655 MPa) strength range. The comparatively low carbon content of the alloy makes it particularly useful in applications involving shock loading or stress concentration. LESCALLOY 4330+V VAC-ARC steel is produced by the vacuum consumable electrode melting process to provide optimum cleanliness and preferred ingot structure. Samples were austenitized at 1600°F for 1 hour and oil quenched. 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	Metric	English	Comments

Density	7.83 g/cc	0.283 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell C	47	47	316°C Temper Temperature
	50	50	282°C Temper Temperature
Tensile Strength, Ultimate	1550 MPa	225000 psi	316°C Temper Temperature
	1620 MPa	235000 psi	282°C Temper Temperature
Tensile Strength, Yield	1331 MPa	193000 psi	316°C Temper Temperature
	1345 MPa	195100 psi	282°C Temper Temperature
Elongation at Break	11 %	11 %	282°C Temper Temperature
	11 %	11 %	316°C Temper Temperature
Reduction of Area	47 %	47 %	282°C Temper Temperature
	47 %	47 %	316°C Temper Temperature
Notched Tensile Strength	2048 MPa	297000 psi	K_t7; 316°C Temper Temperature
	2083 MPa	302100 psi	K_t7; 282°C Temper Temperature

Thermal Properties	Metric	English	Comments
Specific Heat Capacity	0.669 J/g-°C	0.160 BTU/lb-°F

Component Elements Properties	Metric	English	Comments
Carbon, C	0.30 %	0.30 %
Chromium, Cr	0.85 %	0.85 %
Iron, Fe	95.43 %	95.43 %
Manganese, Mn	0.85 %	0.85 %
Molybdenum, Mo	0.40 %	0.40 %
Nickel, Ni	1.8 %	1.8 %
Silicon, Si	0.30 %	0.30 %
Vanadium, V	0.070 %	0.070 %

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 view all the property values for this datasheet as they were originally entered into MatWeb.

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NTIMK023 / 19371

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