Latrobe,CBS-600™ VIM-VAR Carburizing Bearing and Gear Steel Flange

1,We Manufacturing processes are primarily classified into four types: 1:Forging, 2:Casting, 3:Cutting, 4:Rolling. 2,We can manufacture in accordance with these standards. Standards: GB Series (Chinese Standards), JB Series (Machinery Standards), HG Series (Chemical Industry Standards), ASME B16.5 (American Standards), BS4504 (British Standards), DIN (German Standards), and JIS (Japanese Standards). Internationally, there are two primary systems of pipe flange standards: the European system, represented by the German DIN standards (including those of the former Soviet Union), and the American system, represented by the US ANSI pipe flange standards. Other common standards include: the Chinese Ministry of Machinery Industry standards (JB series), the Ministry of Chemical Industry standards (HG series), the Chinese National Standard *GB/T 9112–9124-2010 Steel Pipe Flanges*, as well as US standards (ASME B16.5), British standards (BS4504), German standards (DIN), Japanese standards (JIS), and marine standards (CBM), among others. The nominal pressure ratings for the PN series are designated by "PN" and comprise the following nine levels: PN2.5, PN6, PN10, PN16, PN25, PN40, PN63, PN100, and PN160. The nominal pressure ratings for the Class series are designated by "Class" and comprise the following six levels: Class150, Class300, Class600, Class900, Class1500, and Class2500. Flange Classification 1. **According to Chemical Industry Standards:** Flanges are classified as follows: Plate Flat Welding Flange (PL), Necked Flat Welding Flange (SO), Necked Butt Welding Flange (WN), Integral Flange (IF), Socket Welding Flange (SW), Threaded Flange (Th), Butt Welding Ring Loose Flange (PJ/SE), Blind Flange (BL), Flat Welding Ring Loose Flange (PJ/PJ), and Lined Blind Flange (BL(s)). 2. **According to Petrochemical (SH) Industry Standards:** Flanges are classified as follows: Threaded Flange (PL), Butt Welding Flange (WN), Flat Welding Flange (SO), Socket Welding Flange (SW), Loose Flange (LJ), and Blind Flange (no specific designation). 3. **According to Machinery (JB) Industry Standards:** Flanges are classified as follows: Integral Flange, Butt Welding Flange, Plate Flat Welding Flange, Butt Welding Ring Plate Loose Flange, Flat Welding Ring Plate Loose Flange, Lap Joint Ring Plate Loose Flange, and Blind Flange. 4. **According to Connection Method/Type:** Flanges are classified as follows: Plate Flat Welding Flange, Necked Flat Welding Flange, Necked Butt Welding Flange, Socket Welding Flange, Threaded Flange, Blind Flange, Necked Butt Welding Ring Loose Flange, Flat Welding Ring Loose Flange, Ring-Type Joint (RTJ) Flange and Blind Flange, Large-Diameter Plate Flange, Large-Diameter High-Neck Flange, Figure-8 Blind Plate, Butt Welding Ring Loose Flange, etc. 5. **According to the Component Being Connected:** Flanges can be classified into Vessel Flanges and Pipe Flanges. 6. **According to Structural Type:** Flanges include Integral Flanges, Threaded Flanges, Flat Welding Flanges, Butt Welding Flanges, Lap Joint (Loose/Swivel) Flanges, and Blind Flanges. A flange—also referred to as a flange plate or rim—is a component used to connect shafts to one another, or, more commonly, to join the ends of pipes. Flanges are also utilized at the inlet and outlet ports of equipment to facilitate connections between two devices—for instance, the flange on a speed reducer. A "flange connection" or "flanged joint" refers to a detachable joint assembly comprising three interconnected elements—a flange, a gasket, and bolts—that together form a sealed structural unit. In the context of piping systems, a "pipe flange" specifically denotes a flange used for plumbing within the installation; when applied to equipment, it refers to the inlet or outlet flange of that specific device. Flanges feature a series of holes through which bolts are inserted to securely fasten the two flanges together, while a gasket placed between the flanges ensures a leak-proof seal. Flanges are broadly categorized into three types: threaded (screw-in) flanges, welded flanges, and clamp-type flanges. Flanges are invariably used in pairs; threaded flanges are suitable for low-pressure piping applications, whereas welded flanges are required for systems operating at pressures exceeding 4 kilograms per square centimeter. A sealing gasket is inserted between the two flange plates, which are then firmly secured using bolts. The thickness of a flange—as well as the specifications of the bolts used to fasten it—vary depending on the specific pressure rating required for the application. When connecting equipment such as water pumps or valves to piping systems, the corresponding connection points on these devices are often manufactured in the shape of a matching flange; this method of attachment is also referred to as a "flange connection." Generally, any connecting component that utilizes bolts to join and seal the perimeters of two flat surfaces—such as the joints in ventilation ducts—is termed a "flange"; such components may collectively be classified as "flange-type parts." However, since such a connection often constitutes merely a *portion* of a larger device—for instance, the interface between a flange and a water pump—it would be inappropriate to classify the entire water pump itself as a "flange-type part." Conversely, smaller components—such as valves—that feature such flanged interfaces may indeed be appropriately categorized as "flange-type parts." -:- For detailed product information, please contact sales. -: Latrobe CBS-600™ VIM-VAR Carburizing Bearing and Gear Steel Flange Product Information -:- For detailed product information, please contact sales. -: Latrobe CBS-600™ VIM-VAR Carburizing Bearing and Gear Steel Flange Synonyms -:- For detailed product information, please contact sales. -:

Latrobe CBS-600™ VIM-VAR Carburizing Bearing and Gear Steel Product Information -:- For detailed product information, please contact sales. -: # **Product Datasheet: Latrobe CBS-600™ VIM-VAR Carburizing Bearing and Gear Steel** ## **1. Product Overview** **Latrobe CBS-600™ VIM-VAR** is an advanced **high-temperature carburizing steel** engineered specifically for extreme-duty aerospace bearing and gear applications. Manufactured through **Vacuum Induction Melting (VIM) followed by Vacuum Arc Remelting (VAR)**, this material delivers exceptional **elevated-temperature strength retention, superior fatigue resistance, and deep hardenability**. Designed to operate reliably at temperatures where conventional carburizing steels (such as CBS-50™ NiL or 9310) lose their mechanical edge, CBS-600™ represents the pinnacle of performance for next-generation turbine engines and high-speed transmissions. --- ## **2. Key Advantages & Characteristics** * **Exceptional High-Temperature Performance:** Maintains high surface hardness and core strength at operating temperatures exceeding **315°C (600°F)**, with useful strength up to approximately **480°C (900°F)**. * **Superior Rolling Contact Fatigue (RCF) Life:** The combination of a hard, wear-resistant case and a tough, high-strength core provides exceptional resistance to surface pitting and sub-surface fatigue failure under heavy loads. * **Deep and Uniform Case Hardenability:** Capable of achieving very deep effective case depths (>4.0 mm / 0.160"), making it ideal for large-section components like main shaft bearings and planet gears in planetary gearboxes. * **Unmatched Steel Cleanliness:** The dual VIM-VAR process ensures ultra-low levels of non-metallic inclusions (oxides, sulfides), dramatically reducing sites for fatigue crack initiation and improving overall component reliability. * **Excellent Fracture Toughness & Impact Resistance:** The alloying balance provides a high-strength core with good ductility and toughness to withstand shock loads and bending stresses. * **Optimized for Vacuum Carburizing:** The chemistry is tailored for compatibility with modern, precise vacuum carburizing processes, ensuring consistent case quality and minimal distortion. --- ## **3. Chemical Composition (Typical, wt.%)** The composition is a sophisticated balance of deep-hardenability elements and strong carbide formers for high-temperature stability. | Element | Content Range (Typical) | Metallurgical Function | | :--- | :--- | :--- | | **Carbon (C)** | 0.10 - 0.15 | Provides base hardenability; surface is enriched to ~0.8-1.0% during carburizing. | | **Chromium (Cr)** | 1.40 - 1.80 | Enhances hardenability, corrosion/oxidation resistance, and forms carbides for wear. | | **Nickel (Ni)** | 3.00 - 3.50 | **Primary toughener:** Significantly increases core toughness, ductility, and hardenability without compromising machinability. | | **Molybdenum (Mo)** | 4.75 - 5.25 | **Key high-temperature element:** Provides solid solution strengthening, enhances hardenability, and promotes secondary hardening for elevated temperature strength. | | **Vanadium (V)** | 0.40 - 0.70 | Forms fine, stable carbides for grain refinement, improving toughness and wear resistance. | | **Tungsten (W)** | 1.25 - 1.75 | Contributes to hot hardness and secondary hardening, synergizing with Molybdenum. | | **Manganese (Mn)** | 0.20 - 0.40 | Aids hardenability and acts as a deoxidizer. | | **Silicon (Si)** | 0.20 - 0.35 | Deoxidizer, provides solid solution strengthening. | | **Sulfur (S)** | ≤ 0.003 | Ultra-low to maximize transverse ductility, impact strength, and cleanliness. | | **Phosphorus (P)** | ≤ 0.012 | Ultra-low impurity control. | | **Iron (Fe)** | Balance | Matrix. | **VIM-VAR Process Benefits:** Oxygen typically <10 ppm, Hydrogen <2 ppm. Inclusion rating per ASTM E45 Method A is typically ≤0.5 (Thin/Heavy series). --- ## **4. Physical & Mechanical Properties** *Properties are achieved after full carburizing, quenching, and tempering heat treatment.* ### **A. Core Properties (After Heat Treatment)** * **Core Hardness:** 40 - 50 HRC (depends on tempering temperature) * **Ultimate Tensile Strength:** 1380 - 1655 MPa (200 - 240 ksi) * **Yield Strength (0.2% Offset):** 1170 - 1520 MPa (170 - 220 ksi) * **Elongation:** 8 - 12% * **Reduction in Area:** 30 - 45% * **Fracture Toughness (K_IC):** 25 - 32 MPa√m ### **B. Case Properties** * **Surface Hardness:** **60 - 65 HRC** (after tempering) * **Effective Case Depth (at 50 HRC):** Capable of **3.0 mm to >5.0 mm** (0.120" to >0.200"), customizable per application. * **Case Microstructure:** Fine, tempered martensite with a controlled amount of dispersed alloy carbides. ### **C. High-Temperature Performance** * **Surface Hardness Retention at 425°C (800°F):** ≥ 58 HRC * **Core Strength Retention at 425°C (800°F):** > 70% of room temperature strength ### **D. Physical Properties** * **Density:** ~7.85 g/cm³ * **Modulus of Elasticity:** ~205 GPa (30 x 10⁶ psi) * **Thermal Expansion Coefficient:** ~12.0 x 10⁻⁶ /°C (20-100°C) * **Thermal Conductivity:** ~28.0 W/m·K (at 100°C) --- ## **5. International Standards & Specifications** CBS-600™ is a proprietary, high-performance alloy. Its closest publicly documented equivalents are within aerospace specifications. * **Primary Aerospace Specification:** While proprietary, its performance aligns with and exceeds the intent of high-temperature carburizing steel requirements. * **Similar/Reference Standards:** * **AMS 6265:** Often referenced for high-temperature gear steels (though chemistry differs, performance philosophy is similar). * **AMS 2301:** **Premium** or **Special Cleanliness** grade is typically specified for CBS-600™ applications. * **AMS 2759/3:** Governs the carburizing and hardening heat treatment processes. * **Cross-Reference / Conceptually Similar:** * **AISI/SAE:** No direct equivalent. It is a more advanced evolution of high-temperature steels like **Pyrowear® 675** or **CSS-42L®**, with a chemistry optimized for the most demanding VIM-VAR applications. * **Aerospace Designations:** Used in programs requiring materials capable of **MIL-DTL-5000** or **GE**, **Pratt & Whitney**, **Rolls-Royce** material specifications for high-temperature gears and bearings. * **Industry Compliance:** Manufactured under **AS9100** quality systems and processes compatible with **NADCAP** accreditation for heat treating and testing. --- ## **6. Product Applications** CBS-600™ is specified for the most critically stressed, high-temperature components in advanced aerospace and industrial systems. * **Next-Generation Jet Engines:** **Fan Drive Gear System (FDGS)** sun gears, planet gears, and ring gears; turbine shaft bearings operating in hot sections. * **Advanced Helicopter Transmissions:** Main and tail rotor gearbox planet carriers, spiral bevel gears, and high-speed shaft bearings. * **Turboprop & Turboshaft Engines:** High-power reduction gearbox components. * **Industrial Gas Turbines (IGT):** Heavy-duty power generation drive train gears and bearings in high-temperature environments. * **High-Performance Racing:** Transmission gears and differential components in top-tier motorsports where power density and reliability are paramount. * **Advanced Defense Systems:** Critical gears in tiltrotor drives, unmanned aerial vehicle (UAV) transmissions, and other high-integrity platforms. --- ## **7. Heat Treatment & Processing Notes** Optimal performance is achieved through a controlled, multi-step thermal process: 1. **Carburizing:** **Vacuum Carburizing** is strongly preferred. Process temperatures range from **925°C to 1040°C (1700°F to 1900°F)** to achieve the required deep case. 2. **Diffusion:** A critical step to ensure a gradual carbon gradient from case to core. 3. **High-Temperature Austenitizing & Quenching:** Austenitizing is performed at high temperatures **(1065°C - 1120°C / 1950°F - 2050°F)** followed by oil or high-pressure gas quenching. 4. **Sub-Zero Treatment:** Commonly used to minimize retained austenite in the high-carbon case. 5. **Multiple Tempering:** **Double or triple tempering** within the range of **205°C to 595°C (400°F to 1100°F)** is essential. Higher tempering temperatures (e.g., 540°C+) are used to optimize the **secondary hardening response** for high-temperature applications, trading some room-temperature hardness for vastly improved hot hardness. **Machinability:** In the annealed condition, machinability is fair but requires more power and appropriate tooling (carbide) compared to lower-alloy steels due to its high alloy content and inherent strength. --- **Disclaimer:** This datasheet contains general information based on the performance characteristics of the CBS-600™ family of steels. **Latrobe Specialty Metals'** exact proprietary specifications, heat treatment protocols, and certified mechanical data are controlled documents. The successful application of CBS-600™ requires rigorous engineering analysis, prototype testing, and **direct collaboration with Latrobe's technical team** to define the precise material and processing specifications for any given component. Performance is critically dependent on exact chemistry, melting practice, and component-specific heat treatment. -:- For detailed product information, please contact sales. -: Latrobe CBS-600™ VIM-VAR Carburizing Bearing and Gear Steel Specification Dimensions Size： Diameter 20-1000 mm Length <5324 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 CBS-600™ VIM-VAR Carburizing Bearing and Gear Steel Properties -:- For detailed product information, please contact sales. -:

Applications of Latrobe CBS-600™ VIM-VAR Carburizing Bearing and Gear Steel Flange -:- For detailed product information, please contact sales. -: Chemical Identifiers Latrobe CBS-600™ VIM-VAR Carburizing Bearing and Gear Steel Flange -:- For detailed product information, please contact sales. -:

Packing of Latrobe CBS-600™ VIM-VAR Carburizing Bearing and Gear Steel Flange -:- 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 Flange 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 1795 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