AISI Type M62 Molybdenum High Speed Tool Steel Flange (UNS T11362)

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. -: AISI Type M62 Molybdenum High Speed Tool Steel Flange (UNS T11362) Product Information -:- For detailed product information, please contact sales. -: AISI Type M62 Molybdenum High Speed Tool Steel Flange (UNS T11362) Synonyms -:- For detailed product information, please contact sales. -:

AISI Type M62 Molybdenum High Speed Tool Steel (UNS T11362) Product Information -:- For detailed product information, please contact sales. -: # **Product Introduction: AISI Type M62 Molybdenum High-Speed Tool Steel (UNS T11362)** ## **Overview** **AISI M62 (UNS T11362)** is a **cobalt-free, high-carbon, high-vanadium molybdenum high-speed steel** engineered to deliver **exceptional abrasion resistance and high attainable hardness** without the use of strategic cobalt alloying. Positioned as a **cost-effective alternative to premium cobalt-bearing grades** like M4 and M42 for wear-intensive applications, M62 achieves its performance through a balanced yet aggressive increase in carbon, vanadium, and molybdenum. It is a specialized grade chosen primarily for its outstanding wear life in machining abrasive materials, offering a compelling balance of performance and cost. ## **1. Chemical Composition (Nominal %)** | Element | Content (%) | Primary Function | |---------|------------|------------------| | **Carbon (C)** | 1.25 - 1.35 | **High carbon content** to drive the formation of abundant hard carbides and provide high matrix hardness. | | **Tungsten (W)** | 5.75 - 6.75 | Contributes to hot hardness and secondary hardening; forms stable carbides. | | **Molybdenum (Mo)** | 10.00 - 11.00 | **Very high content.** Primary hardening element; provides outstanding hardenability, hot strength, and promotes fine grain structure. | | **Chromium (Cr)** | 3.75 - 4.50 | Enhances hardenability and wear/oxidation resistance. | | **Vanadium (V)** | 1.80 - 2.20 | **High content.** Forms hard, wear-resistant vanadium carbides (MC-type). | | **Cobalt (Co)** | **Not Present** | Key cost-saving feature; performance derived from other alloying elements. | | **Silicon (Si)** | 0.15 - 0.40 | Deoxidizer. | | **Manganese (Mn)** | 0.15 - 0.40 | Aids hardenability. | | **Sulfur (S)** | ≤ 0.03 | Residual. | | **Phosphorus (P)** | ≤ 0.03 | Residual. | | **Iron (Fe)** | Balance | Base metal. | **Key Chemistry Note:** M62 is characterized by its **very high molybdenum (Mo) content**, one of the highest in the standard M-series, and a **high carbon-to-vanadium ratio**. This combination is designed to maximize secondary hardening response and wear resistance through a dense dispersion of molybdenum and vanadium carbides. The absence of cobalt makes it an economically attractive option for achieving high hardness (up to 67 HRC) and good red-hardness. ## **2. Physical & Mechanical Properties** | Property | Typical Value / Condition | |----------|--------------------------| | **Density** | ~8.05 g/cm³ (0.291 lb/in³) | | **Melting Point** | ~1410°C (2570°F) | | **Thermal Conductivity** | Low (~26 W/m·K at 20°C) | | **Coefficient of Thermal Expansion** | ~11.3 × 10⁻⁶/K (20-540°C) | | **Modulus of Elasticity** | ~205 GPa (29.7 × 10⁶ psi) | | **Annealed Hardness** | 248-285 HB | | **Hardened & Tempered Hardness** | **65-68 HRC** (Can reliably achieve 66-67 HRC with proper heat treatment). | | **Red Hardness** | **Very Good.** Superior to M2; maintains hardness effectively up to ~570°C (1060°F), though slightly below equivalent cobalt grades. | | **Abrasion Resistance** | **Excellent.** The high volume of hard carbides provides wear resistance comparable to many cobalt-bearing grades. | | **Toughness** | **Moderate to Low.** The high carbide volume reduces impact resistance compared to lower-alloy HSS like M2. Careful tool design is necessary. | | **Tempering Temperature** | 540-590°C (1000-1095°F), **triple tempering is strongly recommended**. | | **Grindability** | **Difficult** (~40-45% relative to M2). High vanadium carbide content requires appropriate grinding wheels and techniques. | ## **3. International Standards & Cross-References** | Standard | Designation | Notes | |----------|------------|-------| | **UNS** | T11362 | | | **AISI/ASTM (USA)** | M62 (ASTM A600) | | | **ISO (International)** | **HS 10-7-2** (ISO 4957) | Closest functional equivalent. | | **DIN (Germany)** | **~1.3245** | Approximate equivalent (S 10-7-2 type). | | **JIS (Japan)** | No direct common equivalent. | | | **GB (China)** | **W10Mo7Cr4V2** | Approximate composition. | | **Common Name** | **High Molybdenum, Cobalt-Free HSS** | | ## **4. Product Applications** M62 is designed for applications where **abrasive wear is the primary failure mode** and the extreme red-hardness of cobalt grades is not absolutely required, offering a cost-saving advantage. ### **Primary Cutting Applications:** * **Machining Abrasive Materials:** * **Cast Irons:** Especially abrasive and alloyed cast irons. * **Heat-Resistant Alloys:** Certain stainless steels and superalloys in finishing operations. * **Non-Ferrous Alloys:** High-silicon aluminum alloys, bronze, and other abrasive non-ferrous metals. * **Plastics & Composites:** Reinforced plastics (e.g., fiberglass). * **Specific Tool Types:** * **End mills, drills, and taps** for the above materials where extended tool life is critical. * **Broaches, gear hobs, and form tools** for production machining of abrasive components. * **Turning inserts** (as brazed tips) for finishing cuts. ### **Non-Cutting Wear Applications:** * **Cold work tooling:** Punches, dies, and forming rolls for abrasive sheet metal or wire. * **Shear blades and slitter knives.** * **Wear parts** in industrial equipment subject to abrasive conditions. ### **Performance Context:** M62 fills a niche for **severe abrasive wear problems where M2 fails too quickly, but the full cost of M42 (Co8%) is not justified.** It provides a significant step up in wear resistance from M2 or M7, approaching the performance of some cobalt grades at a lower material cost. Its higher hardness capability also makes it suitable for machining pre-hardened steels. ## **5. Processing & Heat Treatment Guidelines** M62 requires careful heat treatment due to its high alloy content and hardenability. ### **Forging:** * Heat uniformly to **1060-1120°C (1940-2050°F)**. * Do not forge below **930°C (1705°F)**. * Cool slowly in insulating material or furnace. ### **Annealing:** * Heat to **845-870°C (1555-1600°F)**, hold, then furnace cool slowly to **500°C (930°F)**. * Expected annealed hardness: 248-285 HB. ### **Hardening:** 1. **Preheat:** Essential. Use two stages: 550-650°C (1020-1200°F) and 800-850°C (1470-1560°F). 2. **Austenitize:** **1180-1210°C (2155-2210°F).** Precise temperature control is important. The high molybdenum content allows effective hardening at the lower end of this range. 3. **Quench:** In salt bath, oil, or vacuum furnace with gas quenching. ### **Tempering (Critical for Performance):** * **Temper immediately** after quenching to 40-50°C (105-120°F). * Temper at **540-570°C (1005-1060°F)** for 2+ hours per cycle. * **Triple tempering is strongly advised** to ensure complete transformation of retained austenite and to achieve maximum hardness and dimensional stability. * **Cryogenic treatment** between tempers can further enhance final properties. ## **6. Machinability & Grindability** * **Machinability (Annealed):** **Poor** (~45% of M2). Requires rigid setups, sharp tools, and lower speeds/feeds. * **Grindability:** **Difficult.** The vanadium carbides are abrasive to grinding wheels. * **Recommended:** Use aluminum oxide (Al₂O₃) or CBN wheels. Avoid excessive infeeds to prevent grinding burns. * Adequate coolant is essential. --- **Disclaimer:** The information provided is for reference and educational purposes. AISI M62 is a specialized tool steel requiring precise heat treatment and application knowledge. Its performance is highly dependent on correct processing. Always consult the material supplier's certified technical data sheets and engage qualified metallurgical expertise for heat treatment specification and tool design. Actual properties may vary based on manufacturing method (e.g., conventional vs. ESR melting). -:- For detailed product information, please contact sales. -: AISI Type M62 Molybdenum High Speed Tool Steel (UNS T11362) Specification Dimensions Size： Diameter 20-1000 mm Length <6738 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. -: AISI Type M62 Molybdenum High Speed Tool Steel (UNS T11362) Properties -:- For detailed product information, please contact sales. -:

Applications of AISI Type M62 Molybdenum High Speed Tool Steel Flange (UNS T11362) -:- For detailed product information, please contact sales. -: Chemical Identifiers AISI Type M62 Molybdenum High Speed Tool Steel Flange (UNS T11362) -:- For detailed product information, please contact sales. -:

Packing of AISI Type M62 Molybdenum High Speed Tool Steel Flange (UNS T11362) -:- 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 3209 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