Spherical Latrobe LSS™ D2 Tool Steel Powder (ASTM D2)

Latrobe LSS™ D2 Tool Steel Spherical Powder (ASTM D2) Product Information -:- For detailed product information, please contact sales. -: Latrobe LSS™ D2 Tool Steel Spherical Powder (ASTM D2) Synonyms -:- For detailed product information, please contact sales. -: -:- For detailed product information, please contact sales. -: Spherical Latrobe LSS™ D2 Tool Steel Powder (ASTM D2) characteristics -:- For detailed product information, please contact sales. -: Spherical Latrobe LSS™ D2 Tool Steel Powder (ASTM D2) Particle Size -:- For detailed product information, please contact sales. -: -:- -:- 0-15μm ,5-25μm, 15-45μm, 15-53μm,20-63um, 45-75μm, 45-105μm, 45-150μm ,75-150μm. (Various granularities can be customized according to customer requirements) -:- For detailed product information, please contact sales. -:

Spherical Latrobe LSS™ D2 Tool Steel Powder (ASTM D2) Applicable processes -:- For detailed product information, please contact sales. -: Laser/electron beam additive manufacturing (SLM/EBM, 3D printing) Direct laser deposition (DLD) Used in thermal spray (TSA) Powder hot isostatic pressing (HIP) Metal injection molding (MIM) Powder metallurgy (PM) Laser cladding (LC), etc. -:- For detailed product information, please contact sales. -: Spherical Latrobe LSS™ D2 Tool Steel Powder (ASTM D2) Chemical Composition -:- For detailed product information, please contact sales. -: -:- For detailed product information, please contact sales. -: Latrobe LSS™ D2 Tool Steel (ASTM D2) Product Information -:- For detailed product information, please contact sales. -: ### **Product Introduction: Latrobe LSS™ D2 High-Carbon, High-Chromium Cold Work Tool Steel** **Latrobe LSS™ D2** is a premier-grade, air-hardening, high-carbon, high-chromium cold work tool steel. It is renowned for its **exceptional wear resistance**, high compressive strength, and good dimensional stability during heat treatment. Classified under the AISI D2 grade, it offers a significant performance upgrade over oil-hardening grades like O1 for demanding applications involving high abrasion, long production runs, or close-tolerance tooling. Its air-hardening characteristic results in minimal distortion, making it suitable for intricate and large cross-section tools. Latrobe LSS™ D2 is designed for applications where service life and resistance to wear are the primary concerns, justifying its slightly more complex machinability and grinding requirements. --- ### **1. Chemical Composition** The high alloy content, particularly chromium and carbon, forms a large volume of hard, wear-resistant carbides, giving D2 its distinctive properties. | Element | Content (%) | | :--- | :--- | | Carbon (C) | 1.50 | | Chromium (Cr) | 12.00 | | Molybdenum (Mo)| 0.80 | | Vanadium (V) | 0.90 | | Manganese (Mn)| 0.40 | | Silicon (Si) | 0.40 | | **Balance** | Iron (Fe) | *(Note: Composition may vary slightly within standard AISI D2 / ASTM A681 ranges.)* --- ### **2. Physical & Mechanical Properties** **Typical Properties in the Annealed Condition:** * **Hardness:** ~ 210-240 HB (Brinell) * **Machinability:** Fair (rated lower than O1, approximately 40-50% of a 1% carbon steel standard). Pre-hardened versions are available for improved machinability. **Typical Properties in the Hardened & Tempered Condition:** * **Hardening Method:** Air quenching (or oil quenching for very heavy sections to ensure full hardness). This minimizes distortion and quench cracking risk. * **Typical Hardening Temperature:** 995°C - 1040°C (1825°F - 1900°F). * **Tempering Range:** 480°C - 540°C (900°F - 1000°F) is standard, often performed twice (double tempering) for optimal dimensional stability and toughness. * **Achievable Hardness:** **58 - 62 HRC** (Rockwell C). Its **retained hardness at elevated temperatures** is superior to O1. * **Key Characteristics:** * **Superior Wear Resistance:** Outstanding resistance to abrasion and adhesive wear due to high volume of hard carbides. * **High Compressive Strength:** Excellent for applications involving high pressure. * **Good Dimensional Stability:** Low distortion during air hardening. * **Moderate Toughness:** Tougher than very high-carbide steels but less tough than lower-alloy grades like A2 or O1. Not recommended for high-impact applications. --- ### **3. International Standards & Cross-Reference** Latrobe LSS™ D2 is recognized globally under several standard designations: * **USA:** AISI D2, ASTM A681 (Grade D2), UNS T30402 * **Germany:** DIN 1.2379 / X153CrMoV12 * **Sweden:** SS 2310 * **Japan:** JIS SKD11 * **France:** AFNOR Z160CDV12 * **United Kingdom:** BS BD2 --- ### **4. Product Applications** Latrobe LSS™ D2 is the material of choice for long-run, high-wear tooling across various industries: * **Long-Run Stamping & Blanking Dies:** For ferrous and non-ferrous metals, especially abrasive materials. * **Forming Rolls and Draw Dies:** Where wear resistance is critical. * **Shear Blades and Slitter Knives:** For cutting hard or abrasive materials like plastics, composites, and paper. * **Thread Rolling Dies and Gear Rolling Dies:** For high-volume production. * **Punches, Trimmers, and Wear Parts:** Subject to severe abrasive conditions. * **Precision Gages and Tooling:** Requiring high hardness and stability. * **Industrial Knives:** For cutting fibrous or abrasive materials. --- ### **5. Processing Considerations** * **Machining & Grinding:** Requires more power and care than O1. Use rigid setups, positive rake tools, and appropriate speeds/feeds. Grindability is lower; use premium abrasives. * **Heat Treatment:** Requires precise control of austenitizing temperature and time. A deep freeze treatment (sub-zero cooling) after quenching is often recommended to maximize transformation to martensite and enhance hardness/dimensional stability, followed by double tempering. * **Availability:** Latrobe LSS™ D2 is typically supplied in the **annealed condition** as ground flat stock, bar, or plate. It is also available in a **pre-hardened (~ 52-54 HRC)** condition to facilitate machining of complex shapes without final heat treatment. **In summary, Latrobe LSS™ D2 is a high-performance, air-hardening tool steel that sets the benchmark for wear resistance in cold work applications. Its balance of hardness, stability, and compressive strength makes it an essential material for demanding, high-volume production tooling where extended service life and reduced downtime are critical factors.** -:- For detailed product information, please contact sales. -: Latrobe LSS™ D2 Tool Steel (ASTM D2) Specification Dimensions Size： Diameter 20-1000 mm Length <7192 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 LSS™ D2 Tool Steel (ASTM D2) Properties -:- For detailed product information, please contact sales. -:

Spherical Latrobe LSS™ D2 Tool Steel Powder (ASTM D2) Particle Size Description -:- For detailed product information, please contact sales. -: Applications of Spherical Latrobe LSS™ D2 Tool Steel Powder (ASTM D2) -:- For detailed product information, please contact sales. -: -:- For detailed product information, please contact sales. -: Applications of Latrobe LSS™ D2 Tool Steel Spherical Powder (ASTM D2) -:- For detailed product information, please contact sales. -: Chemical Identifiers Latrobe LSS™ D2 Tool Steel Spherical Powder (ASTM D2) -:- For detailed product information, please contact sales. -:

Packing of Latrobe LSS™ D2 Tool Steel Spherical Powder (ASTM D2) -:- 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 Spherical Powder 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 3663 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