Assab Steel Flanges,8407 SUPREME Hot Work 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. -: Assab Steel Flanges 8407 SUPREME Hot Work Steel Flange Product Information -:- For detailed product information, please contact sales. -: Assab Steel Flanges 8407 SUPREME Hot Work Steel Flange Synonyms -:- For detailed product information, please contact sales. -:

Assab Steels 8407 SUPREME Hot Work Steel Product Information -:- For detailed product information, please contact sales. -: ### **Assab Steels 8407 SUPREME: Premium Electro-Slag Remelted (ESR) Hot Work Tool Steel** --- #### **Introduction** Assab Steels 8407 SUPREME is a high-performance, chromium-molybdenum-vanadium (Cr-Mo-V) alloyed hot work tool steel. It is manufactured using the **Electro-Slag Remelting (ESR)** process, resulting in a steel with exceptional purity, homogeneity, and isotropic properties. These characteristics provide superior toughness, thermal fatigue resistance (resistance to heat checking), and consistent performance in all directions. 8407 SUPREME is specifically designed for demanding die-casting, hot forging, and extrusion applications where reliability and extended service life are critical. **Key Value Propositions:** * **Superior Toughness & Ductility:** The ESR process significantly reduces non-metallic inclusions, minimizing the risk of catastrophic failure and die cracking under high thermal and mechanical stress. * **Excellent Thermal Fatigue Resistance:** Outstanding resistance to the formation of heat-checking cracks caused by cyclic heating and cooling, a primary failure mode in hot work tools. * **High Thermal Conductivity:** Promotes rapid heat dissipation from the tool surface, reducing thermal gradients and stress. * **Good Wear Resistance & Hot Hardness:** Maintains sufficient hardness at elevated operating temperatures. * **Isotropic Properties:** Uniform mechanical and thermal properties in all directions due to the refined ESR structure, ensuring predictable performance. #### **International Standard Designations** * **Assab / Uddeholm:** 8407 SUPREME (ESR) * **AISI / ASTM A681:** H13 (Premium ESR Quality) * **European Norm (EN):** 1.2344 (X40CrMoV5-1-1) * **DIN:** X40CrMoV5-1 * **JIS:** SKD61 * **GB (China):** 4Cr5MoSiV1 #### **Chemical Composition (Typical Weight %)** | Element | Carbon (C) | Silicon (Si) | Chromium (Cr) | Molybdenum (Mo) | Vanadium (V) | Manganese (Mn) | | :--- | :---: | :---: | :---: | :---: | :---: | :---: | | **%** | 0.39 | 1.00 | 5.20 | 1.40 | 0.90 | 0.40 | *Note: This balanced composition provides an optimal blend of hot strength (Cr, Mo), wear resistance (V), and toughness.* #### **Physical & Mechanical Properties** * **Density:** 7.80 g/cm³ * **Thermal Conductivity:** 28.0 W/m·K (at 20°C) * **Coefficient of Thermal Expansion:** 11.5 x 10⁻⁶/K (20-200°C) * **Specific Heat Capacity:** 460 J/kg·K * **Elastic Modulus:** 210 GPa * **Typical Hardness in Use:** 44-52 HRC (Commonly used at 46-48 HRC for die casting, and 48-52 HRC for hot forging/extrusion dies). * **Hot Hardness:** Maintains high hardness levels at temperatures up to approximately 600°C. #### **Heat Treatment** * **Soft Annealed Hardness:** ~ 185 HB * **Stress Relieving (after rough machining):** 600-650°C * **Preheating:** Two-stage preheating at 650°C and 850°C is crucial to minimize thermal shock. * **Austenitizing Temperature:** 1020-1050°C (in vacuum or controlled atmosphere furnace). * **Quenching:** Forced air or high-pressure gas quenching (for minimal distortion). Oil quenching is possible for simpler geometries. * **Tempering:** **Double tempering is mandatory.** Temper immediately after quenching to 40-50°C above the intended service temperature. Typical tempering range: **540-650°C.** Hardness decreases with higher tempering temperatures, while toughness increases. #### **Product Applications** 8407 SUPREME is the industry benchmark for a wide range of hot work applications: 1. **High-Pressure Die Casting (Aluminum, Magnesium, Zinc):** * Cores and cavity inserts * Ejector pins, goosenecks, and shot sleeves * Particularly favored for aluminum die-casting due to its superior thermal fatigue resistance. 2. **Hot Forging & Pressing:** * Hammer forging dies * Press forging dies and inserts * Punches, mandrels, and headers for forging steel, brass, and titanium. 3. **Hot & Warm Extrusion:** * Extrusion dies and backers for aluminum and copper alloys. * Liners and dummy blocks. 4. **Plastic Molding (for abrasive/high-temperature plastics):** * Inserts for molding reinforced plastics (e.g., glass-filled). * Nozzles and hot runner components. #### **Available Forms** * ESR-quality billets, blocks, and rounds. * Precision ground flat stock. * Black-rolled or peeled and polished bars. * Custom pre-machined or semi-finished die sets and components. #### **Comparison Note: 8407 SUPREME vs. Conventional H13** The "SUPREME" designation and ESR process are key differentiators. Compared to standard air-melted H13/1.2344, 8407 SUPREME offers: * **Enhanced toughness and ductility** (up to 30% higher transverse impact strength). * **Superior polishability and texture transfer** due to fewer inclusions. * **More consistent and predictable performance** across large die sections. * **Longer tool life**, especially in applications prone to heat checking. #### **Conclusion** Assab Steels 8407 SUPREME is the premium choice for engineers and toolmakers who require the utmost reliability and performance from their hot work tooling. Its Electro-Slag Remelted quality delivers the critical combination of high thermal fatigue resistance and exceptional toughness that is essential for modern, high-productivity die-casting, forging, and extrusion operations. Investing in 8407 SUPREME translates directly into reduced downtime, fewer unscheduled die failures, and lower cost per produced part, solidifying its status as the supreme grade in the H13 steel category. -:- For detailed product information, please contact sales. -: Assab Steels 8407 SUPREME Hot Work Steel Specification Dimensions Size： Diameter 20-1000 mm Length <7240 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. -: Assab Steels 8407 SUPREME Hot Work Steel Properties -:- For detailed product information, please contact sales. -:

Applications of Assab Steel Flanges 8407 SUPREME Hot Work Steel Flange -:- For detailed product information, please contact sales. -: Chemical Identifiers Assab Steel Flanges 8407 SUPREME Hot Work Steel Flange -:- For detailed product information, please contact sales. -:

Packing of Assab Steel Flanges 8407 SUPREME Hot Work 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 3711 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