Latrobe DuraTech™ T15 Powder Metal High Speed Steel (ASTM T15)

Latrobe DuraTech™ T15 Powder Metal High Speed Steel (ASTM T15) Product Information -:- For detailed product information, please contact sales. -: Latrobe DuraTech™ T15 Powder Metal High Speed Steel (ASTM T15) Synonyms -:- For detailed product information, please contact sales. -:

Latrobe DuraTech™ T15 Powder Metal High Speed Steel (ASTM T15) Product Information -:- For detailed product information, please contact sales. -: # **Latrobe DuraTech™ T15 Powder Metal High Speed Steel (ASTM T15)** ## **Product Overview** Latrobe DuraTech™ T15 is the ultimate evolution of the classic T15 super high-speed steel, produced through state-of-the-art powder metallurgy (PM) processes. It fully complies with the rigorous specifications of ASTM T15, but transcends the limitations of conventional ingot metallurgy by delivering a perfectly isotropic, segregation-free microstructure. This advanced manufacturing method allows the ultra-high alloy content of T15—particularly its exceptional tungsten and vanadium levels—to be fully realized, providing **unrivaled wear resistance, supreme red-hardness, and dramatically improved toughness and grindability**. DuraTech™ T15 is engineered for the most extreme machining applications where abrasive wear, high temperatures, and demanding cutting forces converge. ## **Key Features & Benefits** * **Unmatched Microstructural Superiority:** The PM process eliminates the coarse, brittle carbide networks inherent in ingot-cast T15, replacing them with a fine, uniform dispersion of hard carbides. This results in isotropic properties and eliminates weak points. * **Ultimate Abrasive Wear Resistance:** The exceptionally high vanadium carbide (MC type) content, homogeneously distributed, provides the highest level of wear resistance available in any commercial high-speed steel. * **Supreme Red-Hardness & Hot Strength:** The high tungsten and cobalt content ensures the cutting edge retains its hardness and strength at extreme temperatures (exceeding 600°C / 1112°F), enabling efficient cutting speeds on the most difficult materials. * **Revolutionary Toughness & Reliability:** The fine PM microstructure provides a dramatic improvement in toughness and transverse rupture strength compared to conventional T15, drastically reducing the risk of chipping and catastrophic failure in complex or interrupted cuts. * **Exceptional Grindability:** The transformation from coarse, angular carbides to fine, rounded ones makes PM T15 significantly easier to grind, allowing for the creation of sharper, more precise, and complex tool geometries that were previously impractical with ingot T15. ## **International Standard & Designations** * **Primary Standard:** **ASTM A600-92a (R2023):** Standard Specification for Tool Steel High Speed. * **Grade:** **T15** (PM / Particle Metallurgy variant) * **Manufacturing Process:** **Powder Metallurgy, Hot Isostatically Pressed (PM-HIP)** * **Unified Numbering System (UNS):** **T12015** * **Common International Equivalents (PM-based):** * **European PM Designation:** Represents the premium tier of high-vanadium, high-cobalt PM HSS, analogous to grades like **ASP® 2060** but with distinct T15 chemistry. * **Conventional Ingot Equivalent:** **ASTM T15** (AISI T15) ## **Chemical Composition (%, typical)** This chemistry defines the pinnacle of traditional HSS alloy design, now fully liberated by PM technology. | Carbon (C) | Tungsten (W) | Vanadium (V) | Cobalt (Co) | Chromium (Cr) | Molybdenum (Mo) | Iron (Fe) | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | 1.50 - 1.60 | 12.00 - 13.00 | 4.50 - 5.00 | 4.75 - 5.25 | 3.75 - 5.00 | ≤ 1.00 | Balance | *Note:* The high cobalt content significantly enhances secondary hardening and hot hardness, while the ultra-high vanadium provides the extreme wear resistance. ## **Physical & Mechanical Properties (Typical)** | Property | Value / Description | | :--- | :--- | | **Density** | ~8.3 g/cm³ (0.300 lb/in³) | | **Hardness (Annealed)** | 290-320 HB (Brinell) | | **Hardness (Heat Treated)** | **67 - 69 HRC** (Typical optimal working range) | | **Austenitizing Temperature** | 1220 - 1250°C (2225 - 2280°F) | | **Tempering Temperature** | 540 - 590°C (1005 - 1095°F) (Minimum of three tempers required) | | **Transverse Rupture Strength** | Exceptionally high for its class, often 30-50% higher than ingot T15, due to the refined microstructure. | | **Red Hardness** | The benchmark for high-speed steels, outstanding performance at very high temperatures. | ## **Product Applications** Latrobe DuraTech™ T15 is the definitive choice for tools that must withstand the absolute limits of wear and thermal stress. * **Extreme-Performance Cutting Tools:** * **End mills and ball-nose cutters** for high-speed machining (HSM) of hardened dies, superalloys (Inconel, René, Hastelloy), and titanium alloys. * **Gear hobs and power skiving tools** for high-volume, precision manufacturing of aerospace and automotive transmission components from tough materials. * **Broaches** for machining high-temperature alloy components. * **Indexable inserts and form tools** for severe-duty turning and milling where edge integrity is critical. * **Solid carbide drill alternatives** for deep-hole drilling in abrasive superalloys. * **High-Wear Tooling & Wear Parts:** * **Cold forming dies and punches** for advanced high-strength steels (AHSS) and other abrasive metals. * **Thread rolling dies** requiring the ultimate in wear life under high pressure. * **Wear parts** in high-temperature, abrasive environments, such as guide rolls and feed components. * **Target Workpiece Materials:** * Nickel-based & cobalt-based superalloys (forged or cast) * Titanium and its alloys * Hardened tool and die steels (HRc > 55) * Abrasive cast irons (e.g., with vermicular graphite) * High-strength stainless steels and precipitation-hardening steels * Metal matrix composites (MMCs) and other advanced materials ## **Processing Notes** * **Heat Treatment:** Requires precise temperature control in a vacuum or protective atmosphere furnace. The fine PM structure allows for a consistent and predictable response. Multiple high-temperature tempers are essential to achieve maximum secondary hardness and stability. * **Grinding:** Use sharp, free-cutting CBN or premium aluminum oxide grinding wheels with sufficient coolant flow. The improved grindability is a key advantage, but the material's extreme hardness still demands appropriate grinding practices. * **Availability:** Supplied as annealed, spheroidized bars, billets, or precision ground stock. The PM process enables large, sound sections with guaranteed uniform properties from surface to core. --- **Disclaimer** *This information is for descriptive and informational purposes only. Properties can vary based on specific production lot, heat treatment parameters, and final part geometry. It is the responsibility of the end-user to validate the material's suitability for their specific application and to conduct appropriate testing under actual operating conditions. Always consult the latest official Latrobe Specialty Steel technical data sheets and processing guidelines.* -:- For detailed product information, please contact sales. -: Latrobe DuraTech™ T15 Powder Metal High Speed Steel (ASTM T15) Specification Dimensions Size： Diameter 20-1000 mm Length <5347 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™ T15 Powder Metal High Speed Steel (ASTM T15) Properties -:- For detailed product information, please contact sales. -:

Applications of Latrobe DuraTech™ T15 Powder Metal High Speed Steel (ASTM T15) -:- For detailed product information, please contact sales. -: Chemical Identifiers Latrobe DuraTech™ T15 Powder Metal High Speed Steel (ASTM T15) -:- For detailed product information, please contact sales. -:

Packing of Latrobe DuraTech™ T15 Powder Metal High Speed Steel (ASTM T15) -:- 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 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 1818 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