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Latrobe Lescalloy® 300M VAC-ARC High Strength Alloy Steel
| Category | Metal , Ferrous Metal , Alloy Steel , Carbon Steel , High Carbon Steel |
| Manufacturer | Latrobe Steel |
| Trade Name | Lescalloy® |
| Port | Shanghai port,China |
| Trade Terms | FOB, CFR, CIF |
| Payment Terms | L/C, T/T, Western Union |
| Download PDF | Latrobe Lescalloy® 300M VAC-ARC High Strength Alloy Steel.pdf  |
| Price | EMAIL US sales@lookpolymers.com |
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.
| 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 0.200 % |
240000 - 245000 psi @Strain 0.200 % |
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 % |
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