ATI,Allvac® M-50 Specialty 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. -: ATI Allvac® M-50 Specialty Steel Flange, Heat Treatment: 1107°C (2025°F) Q+T Product Information -:- For detailed product information, please contact sales. -: ATI Allvac® M-50 Specialty Steel Flange, Heat Treatment: 1107°C (2025°F) Q+T Synonyms -:- For detailed product information, please contact sales. -:

ATI Allvac® M-50 Specialty Steel, Heat Treatment: 1107°C (2025°F) Q+T Product Information -:- For detailed product information, please contact sales. -: ### **Product Datasheet: ATI Allvac® M-50 High Temperature Bearing Steel (Q+T Condition)** **ATI Allvac® M-50** is a high-carbon, high-chromium molybdenum secondary hardening martensitic stainless steel. It is specifically engineered for demanding applications requiring exceptional high-temperature hardness, wear resistance, and fatigue strength. The **1107°C (2025°F) Quench and Temper (Q+T)** heat treatment process optimizes these properties, making it a premier material for aerospace and high-performance bearing components. #### **1. Key Characteristics & Advantages** * **Excellent High-Temperature Performance:** Maintains high hardness and mechanical strength at operating temperatures up to ~425°C (800°F), surpassing conventional bearing steels like 52100. * **Superior Wear Resistance & Contact Fatigue Life:** Ideal for rolling contact applications under high stress. * **Good Corrosion Resistance:** Offers better corrosion resistance than standard tool steels due to its chromium content, though it is not a fully stainless grade. * **Deep Hardenability:** Air hardening capability minimizes distortion during heat treatment. * **Secondary Hardening:** Achieves peak hardness after tempering due to the formation of fine alloy carbides. #### **2. Standard Specifications & International Designations** * **UNS:** K88195 * **AISI/ASTM:** M50 * **AMS:** 6491 (Steel Bars, Forgings, and Rings) * **EURONORM:** 1.3541 (Similar, not identical) * **ISO:** Not directly standardized under a common ISO number, but specified in aerospace and bearing standards worldwide (e.g., SAE AS 2301). #### **3. Chemical Composition (Typical, Weight %)** | Element | Content (%) | Element | Content (%) | | :--- | :--- | :--- | :--- | | **Carbon (C)** | 0.80 - 0.85 | **Molybdenum (Mo)** | 4.00 - 4.50 | | **Chromium (Cr)** | 3.75 - 4.25 | **Vanadium (V)** | 0.90 - 1.10 | | **Manganese (Mn)** | 0.20 - 0.35 | **Silicon (Si)** | 0.20 - 0.35 | | **Sulfur (S)** | ≤ 0.010 | **Phosphorus (P)** | ≤ 0.020 | | **Iron (Fe)** | Balance | #### **4. Heat Treatment: 1107°C (2025°F) Quench & Temper** This specific thermal processing route is critical for achieving the desired microstructure and properties: * **Austenitizing:** Heat to **1107°C (2025°F)** and hold to dissolve carbides and achieve solution saturation. * **Quenching:** Cool in **air or positive pressure gas** (air hardening) to form a martensitic structure with minimal distortion. * **Tempering (Double or Triple Temper):** Typically performed at **510°C to 595°C (950°F to 1100°F)**. The steel exhibits **secondary hardening**, where hardness increases during the first temper due to precipitation of fine alloy carbides (Mo, V). Subsequent tempers relieve stresses and ensure stability. * **Final Hardness:** Typically **HRC 60-65** after proper tempering. #### **5. Typical Physical & Mechanical Properties (After Q+T)** * **Density:** 7.83 g/cm³ (0.283 lb/in³) * **Modulus of Elasticity:** 210 - 215 GPa (30 - 31 x 10⁶ psi) * **Thermal Expansion Coefficient:** 11.0 x 10⁻⁶/°C (20-100°C) * **Hardness:** **62 - 65 HRC** * **Ultimate Tensile Strength:** ~ 2,240 MPa (325 ksi) * **Yield Strength (0.2% Offset):** ~ 2,070 MPa (300 ksi) * **Fracture Toughness:** Good for its high hardness level. #### **6. Primary Applications** ATI Allvac® M-50 in the Q+T condition is predominantly used in critical aerospace and high-performance industrial components: * **Aircraft Engine Main Shaft Bearings:** Especially in the high-temperature zones of jet engines. * **Auxiliary Power Unit (APU) Bearings** * **High-Speed Machine Tool Spindles** * **Precision Gears and Shafts** requiring high wear resistance. * **Critical Components in Helicopter Transmissions.** * **Specialized Rolling Contact Components** in extreme environments. #### **7. Availability & Processing Notes** * **Forms Available:** Premium melted (VIM-VAR) billets, bars, forgings, and rings. * **Machining:** Best performed in the annealed condition (~ 200 HB). Grinding after heat treatment is standard for final dimensional and surface finish accuracy. * **ATI Allvac® Expertise:** ATI offers this material with guaranteed cleanliness levels and tailored processing to meet stringent aerospace specifications for fatigue-critical applications. --- **Disclaimer:** The information provided is for reference purposes. Properties are typical and can vary based on processing, section size, and final heat treatment parameters. For critical applications, consult ATI Allvac technical data sheets and specifications. -:- For detailed product information, please contact sales. -: ATI Allvac® M-50 Specialty Steel, Heat Treatment: 1107°C (2025°F) Q+T Specification Dimensions Size： Diameter 20-1000 mm Length <6839 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. -: ATI Allvac® M-50 Specialty Steel, Heat Treatment: 1107°C (2025°F) Q+T Properties -:- For detailed product information, please contact sales. -:

Applications of ATI Allvac® M-50 Specialty Steel Flange, Heat Treatment: 1107°C (2025°F) Q+T -:- For detailed product information, please contact sales. -: Chemical Identifiers ATI Allvac® M-50 Specialty Steel Flange, Heat Treatment: 1107°C (2025°F) Q+T -:- For detailed product information, please contact sales. -:

Packing of ATI Allvac® M-50 Specialty Steel Flange, Heat Treatment: 1107°C (2025°F) Q+T -:- 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 3310 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