Latrobe,Stark™ ASTM M4 High Speed 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 Stark™ ASTM M4 High Speed Steel Flange Product Information -:- For detailed product information, please contact sales. -: Latrobe Stark™ ASTM M4 High Speed Steel Flange Synonyms -:- For detailed product information, please contact sales. -:

Latrobe Stark™ ASTM M4 High Speed Steel Product Information -:- For detailed product information, please contact sales. -: ### **Product Datasheet: Latrobe Stark™ ASTM M4 High-Speed Steel (HSS)** **1. Product Overview** Latrobe Stark™ is a premier, high-carbon, high-vanadium molybdenum-based high-speed steel that meets the ASTM A600 M4 specification. Engineered for the most severe applications, Stark™ delivers an unparalleled combination of **extreme abrasion resistance** and **very high hot hardness**. It is designed to outperform standard M2 and even M3 grades in applications where wear is the dominant failure mechanism, often serving as a cost-effective alternative to carbide in certain demanding operations. **2. Key Features & Benefits** * **Ultimate Abrasion/Wear Resistance:** Features the highest vanadium content among common Mo-based HSS grades, leading to an extremely high volume of hard, wear-resistant vanadium carbides. This property defines its core application. * **Very High Red Hardness:** Its alloy composition allows it to maintain cutting edge integrity and hardness at temperatures where other HSS grades would soften, bridging the gap between standard HSS and carbide. * **High Strength:** Capable of achieving and maintaining very high hardness levels (66-68 HRC), providing excellent resistance to deformation under load. * **Controlled Machinability & Grindability:** While challenging to machine and grind due to its high hardness and carbide content, Stark™ is produced with consistency to ensure predictable behavior during tool manufacturing. **3. Standard Chemical Composition (Weight %)** Stark™ is manufactured to the precise requirements of ASTM A600 M4. The typical analysis is: | Element | Content (%) | Element | Content (%) | | :--- | :--- | :--- | :--- | | **Carbon (C)** | 1.25 - 1.40 | **Tungsten (W)** | 5.25 - 6.50 | | **Chromium (Cr)** | 3.75 - 4.75 | **Vanadium (V)** | 3.75 - 4.50 | | **Molybdenum (Mo)**| 4.25 - 5.50 | **Cobalt (Co)** | - | | **Manganese (Mn)** | 0.15 - 0.40 | **Sulfur (S)** | ≤ 0.03 | | **Silicon (Si)** | 0.20 - 0.45 | **Phosphorus (P)** | ≤ 0.03 | *(Note: The defining characteristic is the very high combined Carbon and Vanadium content, which is among the highest for non-cobalt HSS grades.)* **4. Typical Physical & Mechanical Properties** * **Density:** ~8.10 g/cm³ (0.293 lb/in³) * **Thermal Conductivity:** Low, typical of high-alloy HSS. * **Coefficient of Thermal Expansion:** ~11.0 x 10⁻⁶ /K (20-400°C) * **Hardness (Annealed):** Maximum 269 HB * **Hardness (Hardened & Tempered):** **65 - 68 HRC** (Typically run at 66-68 HRC to maximize its wear and hot hardness properties). **5. Primary Applications** Stark™ (M4) is the material of choice for extreme wear conditions where standard HSS fails prematurely. Applications include: * **Cutting Tools for Abrasive Materials:** * Broaches, gear hobs, and form tools for machining high-strength alloy steels and nickel-based superalloys. * High-performance milling cutters and single-point tools for hardened steels, stainless steels, and high-temperature alloys. * Punches and dies for severe cold-forming operations. * **Wear Parts Subject to Extreme Abrasion:** * Knives for cutting abrasive non-metallic materials (e.g., fiberglass, carbon fiber composites, rubber, plastic with mineral fillers). * Wear plates, guides, and slitters in demanding industrial environments. * Wear components in the pulp and paper industry. **6. Relevant International Standards** Latrobe Stark™ is produced to meet or exceed the following international standards: * **ASTM A600-92 (Reapproved):** Standard Specification for High-Speed Steel (M4). * **UNS:** T11344 * **Equivalent Designations:** * **AISI:** M4 * **DIN:** 1.3343 * **ISO:** HS6-5-4 * **JIS:** SKH54 **7. Comparison & Selection Guidance** * **vs. M2/M3:** Stark™ offers vastly superior wear resistance and hot hardness but with lower toughness. It is less forgiving under shock or interrupted cuts. * **vs. Cobalt HSS (M35, M42):** While M42 may achieve higher hardness, M4 typically provides better wear resistance due to its high vanadium content. M4 is chosen for abrasion; cobalt grades are chosen for extreme hot hardness. * **vs. Carbide:** Stark™ offers better toughness and can be used in more complex tool geometries than carbide, making it a viable option when carbide tools are too brittle or expensive to manufacture. **8. Heat Treatment Note** Successful application of Stark™ requires meticulous heat treatment, including proper preheating, austenitizing at high temperatures, and multiple tempering cycles to achieve optimal properties and dimensional stability. **9. Disclaimer** The information provided is typical and for reference purposes. Actual properties can vary based on processing, heat treatment, and section size. For critical applications, consultation with Latrobe's technical service team and conducting application-specific testing is strongly recommended. --- **LATROBE SPECIALTY METALS** *Performance Alloys for Demanding Applications* -:- For detailed product information, please contact sales. -: Latrobe Stark™ ASTM M4 High Speed Steel Specification Dimensions Size： Diameter 20-1000 mm Length <5335 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 Stark™ ASTM M4 High Speed Steel Properties -:- For detailed product information, please contact sales. -:

Applications of Latrobe Stark™ ASTM M4 High Speed Steel Flange -:- For detailed product information, please contact sales. -: Chemical Identifiers Latrobe Stark™ ASTM M4 High Speed Steel Flange -:- For detailed product information, please contact sales. -:

Packing of Latrobe Stark™ ASTM M4 High Speed 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 1806 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