Crucible Steel Flange,CPM® Rex® T15(HS), AISI T15 High Speed Steel Flange Rex® T15(HS)

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. -: Crucible Steel Flange CPM® Rex® T15(HS), AISI T15 High Speed Steel Flange Rex® T15(HS) Product Information -:- For detailed product information, please contact sales. -: Crucible Steel Flange CPM® Rex® T15(HS), AISI T15 High Speed Steel Flange Rex® T15(HS) Synonyms -:- For detailed product information, please contact sales. -:

Crucible Steel CPM® Rex® T15(HS), AISI T15 High Speed Steel Rex® T15(HS) Product Information -:- For detailed product information, please contact sales. -: # **Technical Datasheet: Crucible Steel CPM® Rex® T15(HS), AISI T15 High Speed Steel** --- ## **1. Product Overview** **Crucible CPM® Rex® T15(HS)** is the premium powder metallurgy (PM) incarnation of the legendary **AISI T15 high-speed steel (HSS)**, representing the pinnacle of **tungsten-based, cobalt-bearing, ultra-high-vanadium high-speed steel** technology. As the highest-alloyed standard HSS grade, T15 is renowned for its **exceptional combination of hot hardness (red-hardness) and abrasive wear resistance**. The CPM® Rex® manufacturing process transforms this challenging composition into a **practical, reliable, and superior-performing engineering material** by eliminating the carbide segregation, brittleness, and poor grindability that plague conventional wrought T15. This material is engineered for the **most severe cutting applications** where both extreme heat and severe abrasion are present, such as machining high-temperature superalloys, hardened steels, and abrasive composites. It delivers performance that bridges the gap between conventional HSS and cemented carbide in terms of wear life, while maintaining the toughness and manufacturability advantages of steel. --- ## **2. Key International Standards & Designations** | Country/System | Standard Designation | Equivalent/Specification | | :--- | :--- | :--- | | **USA (Crucible)** | **CPM® Rex® T15(HS)** | Proprietary PM version of T15 | | **USA (AISI/SAE)** | **AISI T15** | UNS T12015 | | **USA (ASTM)** | **ASTM A600** | Grade T15 | | **ISO** | **ISO 4957:2018** | **HS12-1-5-5 / 1.3202** | | **Europe (EN)** | **EN ISO 4957:2018** | **1.3202** | | **Germany (DIN/W-Nr.)** | **1.3202** | S 12-1-4-5 | | **Japan (JIS)** | **JIS G4403** | **SKH10** | | **Common Names** | Super High-Speed Steel, Tungsten-Vanadium-Cobalt HSS | - | **Note:** The **CPM® Rex®** prefix indicates Crucible's proprietary powder metallurgy processing, which is **essential** for making the T15 composition a viable, high-performance material by overcoming the limitations of conventional ingot metallurgy. --- ## **3. Chemical Composition (Typical %)** The composition represents a highly alloyed, balanced approach to maximizing both hot hardness and wear resistance. | Element | Weight % (Typical) | Metallurgical Function & Significance | | :--- | :--- | :--- | | **Carbon (C)** | 1.50 - 1.60 | High carbon to support the extensive formation of hard carbides (especially VC) and to achieve a high-hardness martensitic matrix. | | **Tungsten (W)** | 11.75 - 12.75 | **Primary element for hot hardness.** Provides exceptional solid solution strengthening and forms stable tungsten carbides (M₆C) that resist coarsening at high temperatures. | | **Cobalt (Co)** | **4.75 - 5.25** | **Critical for performance.** Does not form carbides. Increases the matrix's **tempering resistance and hot hardness** by raising the dissolution temperature of other alloy carbides during heating. | | **Vanadium (V)** | **4.75 - 5.25** | **Key element for wear resistance.** Forms an extremely high volume of very hard **vanadium carbides (MC type, ~2800-3000 HV)**. This grants T15 its legendary abrasion resistance, unmatched by other standard HSS grades. | | **Chromium (Cr)** | 4.00 - 4.50 | Provides necessary hardenability, contributes to wear resistance via chromium carbides (M₇C₃), and enhances oxidation resistance. | | **Molybdenum (Mo)** | - | **Not present.** T15 is a classic **tungsten-type HSS**, distinguishing it from molybdenum-type (M-series) grades. | **Revolutionary Microstructure via CPM Process:** - **Elimination of Carbide Networks:** Replaces the large, brittle carbide clusters of wrought T15 with a **uniform dispersion of fine (2-5 µm), spherical carbides**. - **Isotropic Properties:** Uniform mechanical and thermal behavior in all directions, critical for complex tool geometries like drills and end mills. - **Transformed Grindability:** Makes the material grindable, overcoming the single greatest obstacle to using wrought T15. - **Enhanced Toughness:** Dramatically improves transverse rupture strength and impact resistance compared to the notoriously brittle wrought form. --- ## **4. Physical & Mechanical Properties** ### **4.1 Standard Heat Treatment (CPM® Rex® T15)** * **Annealing:** Heat to 870-900°C (1600-1650°F), slow cool. Annealed hardness: **~260-280 HB**. * **Preheating:** **Imperative.** Triple preheat at 650°C (1200°F), 850°C (1560°F), and 1050°C (1920°F) for complex shapes. * **Austenitizing:** **1220-1250°C (2230-2280°F).** Very high temperature required for carbide solutioning. **Precise control (±5°C) is critical.** Salt or vacuum furnace mandatory. * **Quenching:** **Oil, salt bath, or high-pressure gas quench.** * **Tempering:** **Triple or quadruple tempering is mandatory.** Temper at **540-580°C (1000-1075°F)** for 2+ hours each, cooling completely to room temperature between cycles. * **Cryogenic Treatment:** **Highly recommended** between quenching and tempering to maximize transformation of retained austenite. * **Expected Hardness:** **66-68 HRC** (can reach 68-69 HRC with optimal treatment). ### **4.2 Mechanical Properties (Hardened & Triple Tempered)** | Property | Value / Rating | Advantage vs. Wrought T15 | | :--- | :--- | :--- | | **Hardness** | **66 - 68 HRC** | Achieves and maintains the theoretical maximum hardness consistently. | | **Hot Hardness (600°C/1112°F)** | **~61-63 HRC** | **Best-in-Class for HSS.** The combination of high tungsten and cobalt provides unparalleled resistance to thermal softening. | | **Abrasive Wear Resistance** | **Exceptional / Best-in-Class (Standard HSS)** | The high volume of vanadium carbides provides unmatched life in abrasive machining. Superior to all M-series HSS. | | **Transverse Rupture Strength (TRS)** | **3,000 - 3,600 MPa** | **2-3 times higher than wrought T15.** This transformative improvement makes CPM T15 a usable, reliable tool material. | | **Impact Toughness** | **Fair to Good (for its class)** | **Dramatically improved.** Enables use in more demanding applications than ever possible with wrought T15. | | **Grindability** | **Fair** | **The enabling breakthrough.** CPM makes T15 grindable with CBN wheels, whereas wrought T15 is near-impossible to grind practically. | ### **4.3 Physical Properties (Approximate)** * Density: 8.30 g/cm³ * Thermal Conductivity: ~20 W/m·K (Low) * Coefficient of Thermal Expansion: 11.2 x 10⁻⁶/K (20-500°C) * Modulus of Elasticity: 220-225 GPa --- ## **5. Typical Product Applications** CPM® Rex® T15 is specified for the **most demanding, high-value machining operations** where tool performance is critical. * **Ultra-High-Performance Cutting Tools:** * **Solid End Mills & Drills:** For machining **hardened steels (50+ HRC), high-temperature alloys (Inconel, Waspaloy, Haynes alloys), titanium alloys, and abrasive metal matrix composites.** * **Gear Hobs & Shaper Cutters:** For dry or high-speed gear machining of tough materials. * **Broaches, Reamers, and Form Tools:** For high-precision, high-wear applications in aerospace and tool & die industries. * **Inserts & Tool Bits:** For turning superalloys where extreme edge wear is a problem. * **Severe Wear Parts & Forming Tools:** For cold work applications involving highly abrasive non-metallic materials. --- ## **6. Processing & Manufacturing Guidelines** * **Machinability (Annealed):** **Very Poor.** The uniform hardness and high carbide volume are challenging. **EDM is the preferred roughing method.** If machining, use CBN or premium carbide tooling with very conservative parameters. * **Grindability:** **Fair.** **CBN (Cubic Boron Nitride) wheels are mandatory** for all finishing operations. This is a vast improvement over wrought T15. Light cuts and ample coolant are required. * **EDM Machining:** **Excellent.** The preferred method for producing complex shapes. Provides good accuracy and surface integrity. A stress relief temper (180-200°C) after EDM is recommended for critical tools. * **Surface Treatments/Coatings:** An **ideal substrate for advanced PVD coatings (AlTiN, AlCrN, AlTiSiN)**. The extreme base hardness and thermal stability allow coatings to perform at their peak, further extending tool life. --- ## **7. Comparative Performance & Selection Notes** | Criterion | **CPM® Rex® T15** | **Wrought AISI T15** | **CPM M4** | **Cemented Carbide (K10/K20)** | | :--- | :--- | :--- | :--- | :--- | | **Hot Hardness** | **Best (HSS)** | Best (Theoretical) | Excellent | Very Good | | **Abrasive Wear Resistance** | **Best (HSS)** | Best (Theoretical) | Excellent | **Higher** | | **Toughness (TRS)** | **Good** | Very Poor | Very Good | **Poor** | | **Grindability** | Fair | **Very Poor** | Good | N/A (Sintered) | | **Practical Usability** | **Excellent** | Poor | Excellent | Good | | **Cost** | Very High | High | High | Moderate | **When to Choose CPM® Rex® T15:** 1. Machining materials that are **both very hard/tough AND highly abrasive** (e.g., hardened tool steels, superalloys). 2. Operations involve **intermittent cuts or less-than-perfect rigidity** where the superior toughness of CPM T15 over carbide is decisive. 3. Tools require a **complex geometry** (e.g., intricate form tools, deep-hole drills) that is difficult or impossible to produce in carbide. 4. **Maximum possible speed and feed with a HSS tool** is the goal for long-duration cuts in superalloys. **The CPM® Advantage:** The choice is not merely "T15," but specifically **CPM® Rex® T15**. The PM process is what unlocks the theoretical potential of the T15 chemistry, making it a **practical, reliable, and high-performance choice** rather than a metallurgical curiosity. --- ## **8. Conclusion** **Crucible CPM® Rex® T15(HS) is the definitive realization of the ultimate high-speed steel.** It successfully delivers on the long-held promise of the AISI T15 composition—**unrivaled hot hardness combined with supreme wear resistance**—by overcoming its historical fatal flaw: extreme brittleness and unmachinability. This material represents a **peak in cutting tool steel technology**, offering a unique solution for the most challenging machining applications in aerospace, power generation, and precision manufacturing. It provides: - **Near-carbide wear performance** with **steel-like toughness** and manufacturability. - **Exceptional thermal stability** for high-speed, high-temperature cutting. - **Reliable, predictable performance** due to its isotropic, homogeneous PM structure. Choosing CPM® Rex® T15 is a strategic investment for **critical, high-value machining operations** where the cost of downtime, scrap, or subpar finish far outweighs the premium material cost. It is not a general-purpose steel, but for its intended purpose—**pushing the limits of productivity on the world's most difficult-to-machine materials**—**it stands without equal in the realm of high-speed steel.** --- -:- For detailed product information, please contact sales. -: Crucible Steel CPM® Rex® T15(HS), AISI T15 High Speed Steel Rex® T15(HS) Specification Dimensions Size： Diameter 20-1000 mm Length <5236 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. -: Crucible Steel CPM® Rex® T15(HS), AISI T15 High Speed Steel Rex® T15(HS) Properties -:- For detailed product information, please contact sales. -:

Applications of Crucible Steel Flange CPM® Rex® T15(HS), AISI T15 High Speed Steel Flange Rex® T15(HS) -:- For detailed product information, please contact sales. -: Chemical Identifiers Crucible Steel Flange CPM® Rex® T15(HS), AISI T15 High Speed Steel Flange Rex® T15(HS) -:- For detailed product information, please contact sales. -:

Packing of Crucible Steel Flange CPM® Rex® T15(HS), AISI T15 High Speed Steel Flange Rex® T15(HS) -:- 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 1707 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