Latrobe Lescalloy® 4335+V VAC-ARC High Strength Alloy Steel

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Latrobe Lescalloy® 4335+V VAC-ARC High Strength Alloy Steel
Categories:	Metal; Ferrous Metal; Alloy Steel; Low Alloy Steel; Carbon Steel; High Carbon Steel
Material Notes:	4335+V VAC-ARC is a low alloy steel with good strength and high hardenability. In addition, uniform properties are obtained in large sections. The alloy can be heat treated to strength values within a wide range and becomes superior to other low alloy steels above the 200,000 psi strength level. Lescalloy 4335+V VAC-ARC steel is produced by the vacuum consumable electrode melting process to provide optimum cleanliness and preferred ingot structure. 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	0.283 lb/in³

Mechanical Properties	Original Value	Comments
Hardness, Rockwell C	56	1" from quench end; Jominy End Quench Hardenability
	56.5	1/2" from quenched end; Jominy End Quench Hardenability
	58	1/8" from quenched end; Jominy End Quench Hardenability
Tensile Strength, Ultimate	135 ksi	1200°F Temper
	220 ksi	700°F Temper Temperature
	255 ksi	460°F Temper Temperature
Tensile Strength, Yield	1378 MPa @Strain 0.2 %	700°F Temper Temperature
	1448 MPa @Strain 0.2 %	460°F Temper Temperature
Elongation at Break	8.0 %	460°F Temper
	9.0 %	700°F Temper Temperature
	16 %	1200°F Temper
Reduction of Area	30 %	460°F Temper Temperature
	35 %	700°F Temper Temperature

Thermal Properties	Original Value	Comments
CTE, linear	11.34 µm/m-°C @Temperature -17.8 - 648 °C
Thermal Conductivity	37.46 W/m-K

Component Elements Properties	Original Value	Comments
Carbon, C	0.35 %
Chromium, Cr	0.80 %
Iron, Fe	95.2 %
Manganese, Mn	0.75 %
Molybdenum, Mo	0.35 %
Nickel, Ni	1.85 %
Silicon, Si	0.50 %
Vanadium, V	0.20 %

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NTIMK024 / 19372

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