Latrobe,CM-50™ ASTM M50 High Speed Steel Tube,Pipe

Latrobe CM-50™ ASTM M50 High Speed Steel Tube Product Information -:- For detailed product information, please contact sales. -: Latrobe CM-50™ ASTM M50 High Speed Steel Tube Synonyms -:- For detailed product information, please contact sales. -:

Latrobe CM-50™ ASTM M50 High Speed Steel Product Information -:- For detailed product information, please contact sales. -: **Latrobe CM-50™ ASTM M50 High Speed Steel** **Product Overview** Latrobe CM-50™ is a premium molybdenum-tungsten high-speed steel alloy produced to the ASTM A600 standard for M50 grade. Engineered for exceptional **rolling contact fatigue (RCF) resistance**, **high-temperature hardness**, and **toughness**, CM-50™ represents a critical material solution for demanding aerospace and industrial applications. Unlike traditional tungsten-rich high-speed steels, CM-50™ utilizes a balanced molybdenum-tungsten-vanadium composition, offering a superior combination of hot hardness and resistance to spalling in high-stress environments. This makes it the preferred choice for components subjected to extreme mechanical and thermal stresses, particularly in modern high-performance turbine engines. **Key Features & Benefits** * **Superior Rolling Contact Fatigue (RCF) Life:** Excellent resistance to subsurface fatigue failure, making it ideal for bearings operating under high loads and stresses. * **Optimized Hot Hardness:** Maintains high hardness at elevated temperatures (up to ~540°C / 1000°F), ensuring dimensional stability and wear resistance in hot sections. * **Enhanced Toughness:** Offers better toughness and resistance to shock and chipping compared to many higher-carbon, higher-vanadium HSS grades. * **Consistent Performance:** Latrobe's advanced melting and processing ensure a clean, homogeneous microstructure with minimal segregation, leading to predictable and reliable performance. **International Standard & Designations** * **Primary Standard:** **ASTM A600-92a (R2023):** Standard Specification for Tool Steel High Speed. * **Grade:** **M50** * **Aerospace Material Specification:** **AMS 6491E** (Instrument Quality M50) * **Unified Numbering System (UNS):** **T11350** * **Common International Equivalents:** * **ISO:** **HS 2-9-2-8** (Closest equivalent) * **Germany (DIN/W-Nr.):** **1.3547 / S 10-4-3-10** (Similar composition) * **France (AFNOR):** **Z 130 WDCV 09-04-04-02** **Chemical Composition (%, typical)** The balanced alloy design of CM-50™ provides its unique property profile. | Carbon (C) | Molybdenum (Mo) | Tungsten (W) | Vanadium (V) | Chromium (Cr) | Cobalt (Co) | Iron (Fe) | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | 0.78 - 0.88 | 3.75 - 4.50 | 3.75 - 4.50 | 0.90 - 1.10 | 3.75 - 4.50 | ≤ 1.00 (Note 1) | Balance | | **Note 1:** Standard M50 typically contains ≤ 1.0% Co. Special grades like **M50 NiL** (for improved fracture toughness) or those with specific cobalt adjustments may exist for specialized applications. | **Physical & Mechanical Properties (Typical)** | Property | Value / Description | | :--- | :--- | | **Density** | 8.0 g/cm³ (0.289 lb/in³) | | **Hardness (Annealed)** | ≤ 241 HB (Brinell) | | **Hardness (Heat Treated)** | **60 - 64 HRC** (Typical range for bearings and structural components)
**Up to 65-66 HRC** (For cutting tools, with optimized heat treatment) | | **Austenitizing Temperature** | 1100 - 1175°C (2010 - 2150°F) | | **Tempering Temperature** | 525 - 575°C (975 - 1070°F) (Double or triple tempering required) | | **Critical Transformation Point (Ac1)** | ~815°C (~1500°F) | **Product Applications** Latrobe CM-50™ is primarily specified for high-integrity components in aerospace and power generation, where reliability under extreme conditions is paramount. * **Primary Application: Aerospace & Industrial Bearings** * Main shaft bearings in gas turbine engines * Gearbox bearings * High-speed spindle bearings * Fuel pump bearings * **Tooling & Wear Components** * Cold work punches and dies * Forming rolls * High-performance cutting tools (e.g., for machining superalloys, where a balance of toughness and wear resistance is needed) * Wear plates and guides in high-temperature environments **Processing Notes** * **Heat Treatment:** Requires precise austenitizing within the recommended range, followed by multiple tempers to transform retained austenite and achieve optimal hardness/toughness balance. Vacuum or atmosphere-controlled heat treatment is strongly recommended to prevent decarburization. * **Machinability:** Fair machinability in the annealed condition. Grindability is good, which is crucial for finishing bearing races and tool edges. * **Availability:** Commonly supplied as hot-rolled or forged bars, precision ground bars, and billets. For critical aerospace applications, it is often supplied as **Vacuum Induction Melted / Vacuum Arc Remelted (VIM/VAR)** material (per AMS 6491) to ensure ultra-low levels of non-metallic inclusions. **Disclaimer** This information is for descriptive and informational purposes only. Properties can vary based on manufacturing process, heat treatment, and final product form. It is the responsibility of the end-user to validate the material's suitability for their specific application and processing methods. Always consult the latest official Latrobe Specialty Steel technical data sheets and processing guidelines. -:- For detailed product information, please contact sales. -: Latrobe CM-50™ ASTM M50 High Speed Steel Specification Dimensions Size： Diameter 20-1000 mm Length <5342 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 CM-50™ ASTM M50 High Speed Steel Properties -:- For detailed product information, please contact sales. -:

Applications of Latrobe CM-50™ ASTM M50 High Speed Steel Tube -:- For detailed product information, please contact sales. -: Chemical Identifiers Latrobe CM-50™ ASTM M50 High Speed Steel Tube -:- For detailed product information, please contact sales. -:

Packing of Latrobe CM-50™ ASTM M50 High Speed 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 1813 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