Latrobe,Lescalloy® HY-TUF VAC-ARC High Strength Alloy Steel Tube,Pipe

Latrobe Lescalloy® HY-TUF VAC-ARC High Strength Alloy Steel Tube Product Information -:- For detailed product information, please contact sales. -: Latrobe Lescalloy® HY-TUF VAC-ARC High Strength Alloy Steel Tube Synonyms -:- For detailed product information, please contact sales. -:

Latrobe Lescalloy® HY-TUF VAC-ARC High Strength Alloy Steel Product Information -:- For detailed product information, please contact sales. -: ### **Product Introduction: Latrobe Lescalloy® HY-TUF VAC-ARC High Strength Alloy Steel** **Latrobe Lescalloy® HY-TUF VAC-ARC** is a premium, vacuum-arc remelted (VAR) alloy steel specifically engineered for applications demanding an exceptional combination of ultra-high strength, superior fracture toughness, and good ductility. Developed and produced with precision metallurgy, this steel is a cornerstone material for critical, highly stressed components in aerospace, defense, and other advanced engineering sectors. The VAC-ARC (Vacuum Arc Remelt) secondary refining process significantly enhances the material's purity by reducing gaseous elements and non-metallic inclusions. This results in improved transverse ductility, better fatigue resistance, and superior overall mechanical property consistency compared to standard air-melted grades. --- ### **Key Features & Benefits** * **Ultra-High Strength:** Achieves tensile strengths well above 200 ksi (1380 MPa), making it suitable for the most demanding structural applications. * **Excellent Fracture Toughness:** Offers remarkable resistance to crack propagation, even at high strength levels, a critical property for fail-safe designs. * **Superior Fatigue Strength:** The clean VAC-ARC microstructure provides enhanced resistance to cyclic loading, extending component service life. * **Good Ductility and Toughness:** Maintains useful elongation and reduction of area despite its high strength, allowing for some deformation before failure. * **High Purity & Homogeneity:** The VAR process ensures a uniform, defect-free microstructure with low levels of oxygen, hydrogen, and nitrogen. --- ### **Chemical Composition (Typical Weight %)** The composition is carefully balanced to achieve its signature properties. | Element | Content (%) | Element | Content (%) | | :--- | :--- | :--- | :--- | | **Iron (Fe)** | Balance | **Molybdenum (Mo)** | 0.30 - 0.50 | | **Carbon (C)** | 0.25 - 0.35 | **Chromium (Cr)** | 0.70 - 0.95 | | **Nickel (Ni)** | 2.65 - 3.00 | **Silicon (Si)** | 0.20 - 0.35 | | **Manganese (Mn)**| 0.20 - 0.40 | **Vanadium (V)** | 0.05 - 0.10 | | **Sulfur (S)** | 0.010 max | **Phosphorus (P)** | 0.010 max | *Note: This is a typical analysis. Specific customer requirements may vary.* --- ### **Physical & Mechanical Properties** *Typical properties after proper heat treatment (e.g., Austenitize, Quench, and Double Temper).* | Property | Typical Value | Condition / Note | | :--- | :--- | :--- | | **Tensile Strength** | 220 - 240 ksi | 1517 - 1655 MPa | | **Yield Strength (0.2% Offset)** | 205 - 225 ksi | 1413 - 1551 MPa | | **Elongation (in 2" or 50mm)** | 10 - 14 % | | | **Reduction in Area** | 35 - 50 % | | | **Hardness** | 50 - 55 HRC | Rockwell C Scale | | **Fracture Toughness (K_Ic)** | Very High | Significantly superior to conventional high-strength steels at equivalent strength levels. | --- ### **International Standards & Specifications** Latrobe Lescalloy HY-TUF VAC-ARC is supplied to meet or exceed the requirements of several key international and industry-specific standards, including: * **AMS (Aerospace Material Specification):** Often supplied to **AMS 6528** or similar stringent specifications for premium aircraft-quality steels. * **MIL-S (Military Standard):** Conforms to relevant military specifications for high-strength steel components. * **Proprietary/Manufacturer's Specification:** Latrobe Specialty Steel maintains tight internal specifications that frequently exceed generic industry standards. --- ### **Product Applications** HY-TUF VAC-ARC is selected for the most critical components where performance and reliability are non-negotiable: * **Aerospace:** * Aircraft landing gear components (axles, pistons, torque links) * Critical airframe structural parts * Engine mounts and turbine shafts * Arrestor hook components for carrier-based aircraft * **Defense & Military:** * Armor piercing penetrators * Track components for heavy vehicles * Firearm components (high-stress bolts, barrels for large caliber) * Missile and ordnance parts * **Industrial & Tooling:** * High-performance springs for extreme conditions * Dies and molds requiring high strength and toughness * Shafts and fasteners for oil & gas drilling equipment --- ### **Processing & Handling Notes** * **Heat Treatment:** Requires precise austenitizing, quenching, and double tempering to achieve optimal properties. Specific time-temperature parameters are critical. * **Machining:** Can be machined in the annealed condition. After heat treatment, machining becomes difficult and typically requires grinding or other abrasive methods. * **Welding:** Weldability is limited due to high hardenability. Specialized procedures, including pre-heat and post-weld heat treatment, are mandatory and must be rigorously controlled. **Disclaimer:** The information provided here is for general reference. For specific design, processing, or procurement, please consult the official technical data sheets from **Latrobe Specialty Steel** and engage with their metallurgical experts. -:- For detailed product information, please contact sales. -: Latrobe Lescalloy® HY-TUF VAC-ARC High Strength Alloy Steel Specification Dimensions Size： Diameter 20-1000 mm Length <6453 mm Size:We can customized as required Standard： Per your request or drawing We can customized as required Properties（Theoretical） Chemical Composition -:- For detailed product information, please contact sales. -: Latrobe Lescalloy® HY-TUF VAC-ARC High Strength Alloy Steel Properties -:- For detailed product information, please contact sales. -:

Applications of Latrobe Lescalloy® HY-TUF VAC-ARC High Strength Alloy Steel Tube -:- For detailed product information, please contact sales. -: Chemical Identifiers Latrobe Lescalloy® HY-TUF VAC-ARC High Strength Alloy Steel Tube -:- For detailed product information, please contact sales. -:

Packing of Latrobe Lescalloy® HY-TUF VAC-ARC High Strength Alloy Steel Tube -:- For detailed product information, please contact sales. -: Standard Packing: -:- For detailed product information, please contact sales. -: Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and Steel Tube drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 2924 gallon liquid totes Special package is available on request. E FORUs’ is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition