Assab Steel Flanges,8407 2M 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 2M Hot Work Steel Flange Product Information -:- For detailed product information, please contact sales. -: Assab Steel Flanges 8407 2M Hot Work Steel Flange Synonyms -:- For detailed product information, please contact sales. -:

Assab Steels 8407 2M Hot Work Steel Product Information -:- For detailed product information, please contact sales. -: ### **Assab Steels 8407 2M: Premium Quality ESR H13 Hot Work Steel for Enhanced Toughness** --- #### **1. Introduction** **Assab Steels 8407 2M** is a premium-grade, chromium-molybdenum-vanadium (Cr-Mo-V) hot work tool steel manufactured through the **Electro-Slag Remelting (ESR)** process. It belongs to the internationally recognized H13/1.2344 family but is distinguished by its enhanced purity and superior, **isotropic mechanical properties**. The "2M" designation indicates a specific quality grade within the 8407 series, optimized to deliver exceptional toughness, thermal fatigue resistance, and consistent performance in all directions (transverse and longitudinal). It is the benchmark material for critical hot work applications demanding the highest reliability. **Key Value Propositions:** * **Superior Transverse Toughness:** The ESR process drastically reduces non-metallic inclusions and directional segregation, resulting in high and uniform impact strength, significantly reducing the risk of unexpected cracking. * **Excellent Thermal Fatigue Resistance:** Outstanding resistance to the initiation and propagation of heat-checking cracks caused by cyclic thermal stress. * **High Isotropic Consistency:** Mechanical and thermal properties are uniform in all orientations, ensuring predictable tool behavior and performance. * **Excellent Polishability & Texture Transfer:** The clean, homogeneous microstructure allows for superior surface finishes, crucial for high-quality casting and molding surfaces. * **Good Thermal Conductivity & Hot Hardness:** Efficient heat dissipation and retained strength at elevated operating temperatures. --- #### **2. International Standard Designations** * **Assab / Uddeholm:** 8407 2M (ESR Quality) * **AISI / ASTM A681:** H13 (ESR Premium) * **European Norm (EN):** 1.2344 (X40CrMoV5-1-1) ESR * **DIN:** X40CrMoV5-1 (ESR) * **JIS:** SKD61 (ESR) * **GB (China):** 4Cr5MoSiV1 (ESR) --- #### **3. 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 | *The balanced composition provides optimal hot strength, toughness, and wear resistance. The ESR process refines this chemistry into an exceptionally pure structure.* --- #### **4. 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 Operational Hardness:** **44-52 HRC** * *Aluminum Die Casting:* 46-48 HRC * *Hot Forging / Extrusion:* 48-52 HRC * **Key Advantage (vs. conventional):** **Transverse Impact Toughness** is significantly higher and nearly equal to longitudinal toughness, a critical factor for die integrity. --- #### **5. Heat Treatment** * **Soft Annealed Hardness:** ~ 185 HB * **Stress Relieving (after rough machining):** 600-650°C * **Preheating:** Essential. Recommend 650°C and 850°C (two stages). * **Austenitizing Temperature:** 1020-1050°C (Vacuum or controlled atmosphere). * **Quenching:** High-pressure gas quenching (preferred for minimal distortion) or oil. * **Tempering:** **Double tempering is mandatory.** Temper between **540-650°C**, typically aiming for 40-50°C above the intended service temperature. Hardness adjusts with tempering temperature. --- #### **6. Product Applications** 8407 2M is the preferred choice for high-stress, high-reliability hot work tooling where failure is not an option. 1. **High-Pressure Die Casting (Aluminum, Magnesium, Zinc):** * Critical core and cavity inserts for large automotive components (engine blocks, transmission cases). * High-stress thin-wall castings. * Units subject to high thermal shock. 2. **Hot Forging & Pressing:** * Precision forging dies for automotive and aerospace components. * High-wear inserts and punches. * Tools for forging high-temperature alloys. 3. **Hot & Warm Extrusion:** * Extrusion dies and backers for aluminum and copper alloys. * Mandrels and dummy blocks requiring high toughness. 4. **Advanced Plastic Molding:** * Cavities and cores for high-temperature, abrasive, or corrosive engineering plastics (e.g., PEEK, reinforced nylons). * Hot runner system components. --- #### **7. Quality & Supply Forms** * **Quality:** ESR-processed, ensuring low sulfur content and extreme cleanliness. Subject to stringent ultrasonic testing. * **Available Forms:** * ESR blocks and billets. * Precision ground flat stock. * Black or peeled round and flat bars. * Custom pre-machined components. --- #### **8. Comparison: 8407 2M vs. Standard H13 / 8407** | **Property** | **8407 2M (ESR)** | **Standard Air-Melted H13** | | :--- | :--- | :--- | | **Microstructure Cleanliness** | Excellent (Low inclusion count) | Standard | | **Transverse Toughness** | **Very High & Isotropic** | Lower, Anisotropic | | **Resistance to Crack Initiation** | Superior | Good | | **Polishability** | Excellent (Mirror finish achievable) | Good | | **Consistency in Large Sections** | Excellent | Variable | | **Primary Application Focus** | Critical, high-stress tools | General purpose tools | --- #### **9. Conclusion** **Assab Steels 8407 2M** is not just another H13 steel; it is the **premium ESR incarnation** of this workhorse grade. By offering dramatically improved toughness, especially in the transverse direction, and unmatched isotropic consistency, it solves the most common failure modes in demanding hot work applications. For toolmakers and manufacturers where die life, part quality, and production uptime are critical, investing in 8407 2M provides a tangible return through reduced catastrophic failures, extended service intervals, and superior finished product quality. It is the definitive choice when the application demands the utmost performance from H13-type steel. -:- For detailed product information, please contact sales. -: Assab Steels 8407 2M Hot Work Steel Specification Dimensions Size： Diameter 20-1000 mm Length <7242 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 2M Hot Work Steel Properties -:- For detailed product information, please contact sales. -:

Applications of Assab Steel Flanges 8407 2M Hot Work Steel Flange -:- For detailed product information, please contact sales. -: Chemical Identifiers Assab Steel Flanges 8407 2M Hot Work Steel Flange -:- For detailed product information, please contact sales. -:

Packing of Assab Steel Flanges 8407 2M 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 3713 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