Latrobe,DuraTech™ 20CV Powder Metal Stainless Tool 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 DuraTech™ 20CV Powder Metal Stainless Tool Steel Flange Product Information -:- For detailed product information, please contact sales. -: Latrobe DuraTech™ 20CV Powder Metal Stainless Tool Steel Flange Synonyms -:- For detailed product information, please contact sales. -:

Latrobe DuraTech™ 20CV Powder Metal Stainless Tool Steel Product Information -:- For detailed product information, please contact sales. -: ### **Product Introduction: Latrobe DuraTech™ 20CV Powder Metallurgy Premium Stainless Tool Steel** **Overview** Latrobe DuraTech™ 20CV is a high-end, martensitic stainless tool steel manufactured through the advanced powder metallurgy (PM) process. This technology creates an ultra-fine, homogeneous microstructure with a uniform distribution of hard, complex carbides. 20CV is renowned for its exceptional combination of **high wear resistance (approaching that of premium carbide grades)**, excellent corrosion resistance, and good toughness for its hardness level. It is designed to outperform conventional stainless tool steels like 440C and D2 in the most demanding applications where corrosion, wear, and dimensional stability are critical. The alloy is a modification of the CPM S90V composition, optimized to deliver an unparalleled balance of properties for high-performance tooling and wear components. **Key Advantages** * **Outstanding Wear & Abrasion Resistance:** Exceptionally high vanadium carbide content provides wear resistance that is multiple times greater than 440C and significantly better than D2, rivaling some cemented carbides. * **Superior Corrosion Resistance:** High chromium content (20%) provides excellent resistance to corrosion and rust, comparable to 440C stainless steel, making it suitable for wet environments, food processing, and chemical exposure. * **Excellent Edge Retention:** The primary driver for its use in cutlery and sharp-edge applications, maintaining a sharp cutting edge far longer than conventional steels. * **High Hardness Capability:** Can be hardened to very high levels while maintaining useful toughness. * **Dimensionally Stable:** Exhibits minimal size change during heat treatment, crucial for precision tools and components. * **Uniform PM Microstructure:** Ensures consistent, predictable performance and grindability in all directions, free from carbide banding. **International Standards & Specifications** * **AISI / SAE:** Not a standard AISI grade. It is a proprietary PM steel. * **UNS:** S26990 * **European / ISO:** Similar to **1.4116 (PM)** with enhanced vanadium, but no direct equivalent. Falls under stainless tool steel category. * **Common Trade Names & Equivalents:** **CPM-20CV** (Crucible Industries), **Böhler M390** (Uddeholm/Böhler), **CTS-204P** (Carpenter Technology). These are considered **industry equivalents** with virtually identical compositions and performance profiles. **Chemical Composition (Typical Weight %)** The composition is meticulously balanced to form a high volume of hard, stable vanadium and chromium carbides within a corrosion-resistant matrix. | Element | Carbon (C) | Chromium (Cr) | Vanadium (V) | Molybdenum (Mo) | Tungsten (W) | | :--- | :---: | :---: | :---: | :---: | :---: | | **% Range** | 1.90 | 20.00 | 4.00 | 1.00 | 0.60 | *Note: Also contains balanced amounts of Silicon (Si), Manganese (Mn), and may contain trace elements.* **Physical & Mechanical Properties (Annealed & Hardened)** * **Density:** ~7.80 g/cm³ (0.282 lb/in³) * **Annealing Temperature:** 900 - 925°C (1650 - 1700°F), followed by slow cooling. Typical annealed hardness: ~240 HB. * **Hardening (Austenitizing) Temperature:** 1105 - 1160°C (2025 - 2120°F). Precise temperature control is critical for optimal properties. * **Tempering Temperature:** 480 - 595°C (900 - 1105°F) – Typically double or triple tempered. Can be tempered at cryogenic temperatures to enhance properties. * **Achievable Hardness (Hardened & Tempered):** **58 - 62 HRC** is the standard operational range. It is most commonly used at **59-61 HRC** for the ideal balance of edge retention and toughness. * **Corrosion Resistance:** Excellent for a tool steel, due to its high chromium content and the PM process which creates a more chemically homogeneous structure. **Typical Product Applications** Latrobe DuraTech™ 20CV is specified for applications where premium performance justifies its cost. 1. **High-End Cutting Tools & Blades:** * **Premium Knives & Cutlery:** High-end pocket knives, kitchen knives, and surgical blades where supreme edge retention and stain resistance are paramount. * **Industrial Blades:** Slitter knives, rotary cutter blades, and granulator blades for processing abrasive, corrosive, or food-grade materials (e.g., plastics, composites, food, textiles). * **Punches and Dies:** For forming and blanking corrosive or abrasive materials, such as certain plastics, adhesives, and composites. 2. **Wear Parts in Corrosive Environments:** * **Food & Chemical Processing:** Components like valve seats, pump shafts, and bearing sleeves that require both wear and corrosion resistance. * **Mold Inserts & Cores:** For plastic injection molds where glass-filled or abrasive resins are used, and corrosion from coolant or released acids is a concern. * **Precision Gauges & Tooling:** Where dimensional stability and resistance to rust in non-climate-controlled environments are required. **Processing Notes** * **Machining (Annealed State):** Must be machined with rigid setups and carbide tooling. Its high wear resistance in the annealed state makes it more challenging to machine than standard tool steels. * **Heat Treatment:** Requires precise, often vacuum or atmosphere-controlled, heat treatment to prevent decarburization and achieve optimal properties. Pre-hardening and multiple tempering cycles are standard. * **Grinding:** Requires careful grinding techniques with sharp, premium aluminum oxide or diamond/CBN wheels, adequate coolant, and light passes to avoid generating excessive heat and compromising the steel's properties. **Conclusion** Latrobe DuraTech™ 20CV stands at the pinnacle of stainless tool steel performance. It is the material of choice when neither conventional tool steel nor carbide can meet the simultaneous requirements of extreme wear resistance, good corrosion protection, and the ability to be fabricated into complex tools. For critical applications in cutlery, industrial cutting, and corrosive wear environments, 20CV delivers a service life and performance level that often justifies its premium cost. -:- For detailed product information, please contact sales. -: Latrobe DuraTech™ 20CV Powder Metal Stainless Tool Steel Specification Dimensions Size： Diameter 20-1000 mm Length <7213 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 DuraTech™ 20CV Powder Metal Stainless Tool Steel Properties -:- For detailed product information, please contact sales. -:

Applications of Latrobe DuraTech™ 20CV Powder Metal Stainless Tool Steel Flange -:- For detailed product information, please contact sales. -: Chemical Identifiers Latrobe DuraTech™ 20CV Powder Metal Stainless Tool Steel Flange -:- For detailed product information, please contact sales. -:

Packing of Latrobe DuraTech™ 20CV Powder Metal Stainless Tool 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 3684 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