Latrobe Lescalloy® 300M VAC-ARC High Strength Alloy Steel

Login to see your most recently viewed materials here. Or if you don't have an account with us yet, then click here to register.

Latrobe Lescalloy® 300M VAC-ARC High Strength Alloy Steel
Categories:	Metal; Ferrous Metal; Alloy Steel; Carbon Steel; High Carbon Steel
Material Notes:	LESCALLOY 300M VAC-ARC steel is a modified 4340 steel with added silicon allowing for use of a higher tempering temperature. The steel has high hardenability and strength with good ductility and toughness in heavy sections. It is used primarily in the 270/300 ksi (1862/2068) tensile strength range for aircraft landing gears, flap tracks and other structural applications. Vacuum arc remelting (VAR) is used 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.
Vendors:	Click here to view all available suppliers for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
Printer friendly version Download as PDF Download to Excel (requires Excel and Windows) Export data to your CAD/FEA program Add to Folder:

Physical Properties	Metric	English	Comments

Density	7.83 g/cc	0.283 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell C	57.5	57.5	1" from quench end; Jominy End Quench Hardenability
	58	58	1/2" from quenched end; Jominy End Quench Hardenability
	59	59	1/8" from quenched end; Jominy End Quench Hardenability
Tensile Strength, Ultimate	1970 - 1990 MPa	286000 - 288000 psi	302°C Temper Temperature
Tensile Strength, Yield	1655 - 1689 MPa @Strain 0.2 %	240000 - 245000 psi @Strain 0.2 %	302°C Temper Temperature
Elongation at Break	8.5 - 11 %	8.5 - 11 %	302°C Temper Temperature
Reduction of Area	31 - 39 %	31 - 39 %	302°C Temper Temperature

Thermal Properties	Metric	English	Comments
CTE, linear	11.34 µm/m-°C @Temperature -17.8 - 93.0 °C	6.300 µin/in-°F @Temperature -0.0400 - 199 °F
Specific Heat Capacity	0.448 J/g-°C	0.107 BTU/lb-°F
Thermal Conductivity	37.49 W/m-K	260.2 BTU-in/hr-ft²-°F

Component Elements Properties	Metric	English	Comments
Carbon, C	0.42 %	0.42 %
Chromium, Cr	0.80 %	0.80 %
Iron, Fe	94.11 %	94.11 %
Manganese, Mn	0.75 %	0.75 %
Molybdenum, Mo	0.40 %	0.40 %
Nickel, Ni	1.8 %	1.8 %
Silicon, Si	1.65 %	1.65 %
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.

Users viewing this material also viewed the following:
300M Ultrahigh Strength Steel
Latrobe Lescalloy® 300M - HS VAC-ARC High Strength Alloy Steel
Latrobe Lescalloy® 4340 VAC-ARC ; 3.5" round High Strength Alloy Steel
Latrobe Lescalloy® 9310 VAC-ARC Premium Carburizing Steel
ATI Allvac® Vasco® 9310 Specialty Steel, Heat Treatment: 899°C (1650°F) Normalization

NTIMK017 / 19365

Free Trade Publications, Click Here!

	Advertise with MatWeb!
	Data sheets for over 180,000 metals, plastics, ceramics, and composites.
	HOME • SEARCH • TOOLS • SUPPLIERS • FOLDERS • ABOUT US • FAQ • LOG IN

System Message