Spherical Latrobe LSS™ D3 Tool Steel Powder (ASTM D3)

Latrobe LSS™ D3 Tool Steel Spherical Powder (ASTM D3) Product Information -:- For detailed product information, please contact sales. -: Latrobe LSS™ D3 Tool Steel Spherical Powder (ASTM D3) Synonyms -:- For detailed product information, please contact sales. -: -:- For detailed product information, please contact sales. -: Spherical Latrobe LSS™ D3 Tool Steel Powder (ASTM D3) characteristics -:- For detailed product information, please contact sales. -: Spherical Latrobe LSS™ D3 Tool Steel Powder (ASTM D3) 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™ D3 Tool Steel Powder (ASTM D3) 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™ D3 Tool Steel Powder (ASTM D3) Chemical Composition -:- For detailed product information, please contact sales. -: -:- For detailed product information, please contact sales. -: Latrobe LSS™ D3 Tool Steel (ASTM D3) Product Information -:- For detailed product information, please contact sales. -: ### **Product Introduction: Latrobe LSS™ D3 High-Carbon, High-Chromium Cold Work Tool Steel** **Latrobe LSS™ D3** is a premium-grade, **non-deforming, high-carbon, high-chromium cold work tool steel** designed primarily for applications requiring **exceptional wear resistance** under non-impact conditions. As an **oil-hardening steel** classified under the AISI D3 grade, it offers superior abrasion resistance compared to O1 and A2 grades, though with lower toughness. Its high chromium and carbon content forms a significant volume of hard carbides, making it an excellent choice for long-run tooling subjected to severe wear in controlled environments. Latrobe LSS™ D3 is distinguished by its **high dimensional stability** during heat treatment and excellent through-hardening characteristics. This steel is ideal for precision tooling where wear resistance is paramount and shock loading is minimal. --- ### **1. Chemical Composition** The chemical composition of Latrobe LSS™ D3 is optimized for maximum carbide formation and wear performance. | Element | Content (%) | | :--- | :--- | | Carbon (C) | 2.05-2.35 | | Chromium (Cr) | 11.00-13.50 | | Manganese (Mn) | 0.60 max | | Silicon (Si) | 0.60 max | | Vanadium (V) | 0.80-1.00 | | **Balance** | Iron (Fe) | *(Note: Typical composition represents standard AISI D3 / ASTM A681 ranges.)* --- ### **2. Physical & Mechanical Properties** **Typical Properties in the Annealed Condition:** * **Hardness:** ~ 210-255 HB (Brinell) * **Machinability:** Fair (approximately 35-45% of a 1% carbon steel standard). Requires careful tool selection and machining parameters. **Typical Properties in the Hardened & Tempered Condition:** * **Hardening Method:** Oil quenching * **Typical Hardening Temperature:** 950°C - 980°C (1740°F - 1800°F) * **Tempering Range:** 150°C - 540°C (300°F - 1000°F) * **Achievable Hardness:** **58 - 64 HRC** (Rockwell C) depending on tempering temperature * **Key Characteristics:** * **Exceptional Wear Resistance:** Superior to D2 in many abrasive applications due to higher carbon content * **Good Dimensional Stability:** Minimal distortion during proper oil quenching * **Excellent Through-Hardening:** Suitable for larger cross-sections * **Limited Toughness:** Not recommended for impact or shock loading applications * **Fair Corrosion Resistance:** Better than non-chromium tool steels due to chromium content --- ### **3. International Standards & Cross-Reference** Latrobe LSS™ D3 conforms to major international standards: * **USA:** AISI D3, ASTM A681 (Grade D3), UNS T30403 * **Germany:** DIN 1.2080 / X210Cr12 * **Sweden:** SS 2312 * **Japan:** JIS SKD1 * **France:** AFNOR Z200C12 * **United Kingdom:** BS BD3 * **ISO:** ISO 4957 210Cr12 --- ### **4. Product Applications** Latrobe LSS™ D3 is specifically selected for applications where extreme wear resistance is required without significant impact: * **Thread Rolling Dies:** For high-precision, long-run production * **Blanking and Punching Dies:** For abrasive materials like silicon steel, fiberglass, and hard papers * **Forming Rolls and Draw Dies:** Where wear is the primary failure mode * **Shear Blades and Slitter Knives:** For cutting abrasive non-metallic materials * **Bending and Forming Tools:** For abrasive sheet materials * **Wear Plates and Guides:** In high-abrasion environments * **Gauges and Measuring Tools:** Requiring extreme dimensional stability and wear resistance * **Knurling Tools and Burnishing Rolls:** For surface finishing applications --- ### **5. Processing Considerations** * **Heat Treatment:** Requires careful control of austenitizing temperature and time. Preheating at 650°C (1200°F) is recommended to minimize thermal shock. Oil quenching provides good hardenability with minimal distortion risk. * **Tempering:** Should be performed immediately after quenching. Double tempering is recommended for maximum dimensional stability. * **Machining:** Best performed in annealed condition using rigid setups, positive rake carbide tools, and adequate cooling. Grinding requires proper wheel selection and cooling to avoid cracking. * **Stress Relieving:** Recommended after rough machining and before finish grinding. * **Availability:** Typically supplied in annealed condition as ground flat stock, rounds, squares, or plates. --- ### **6. Comparison with Similar Grades** * **vs. D2:** D3 offers higher wear resistance but lower toughness. D2 is air-hardening while D3 is oil-hardening. * **vs. O1:** D3 provides significantly better wear resistance but requires more careful heat treatment and has lower toughness. * **vs. A2:** D3 excels in pure wear applications while A2 offers better toughness and is air-hardening. --- **Summary:** Latrobe LSS™ D3 represents the pinnacle of wear resistance among oil-hardening cold work tool steels. Its combination of high carbon and chromium content delivers outstanding performance in abrasive applications where dimensional stability and longevity are critical. While requiring careful processing and not suitable for impact service, D3 remains the material of choice for specialized tooling where wear resistance is the primary design consideration. **Disclaimer:** Technical data provided is for reference purposes. Users should consult Latrobe's official technical data sheets and perform appropriate testing for specific applications. Proper heat treatment by qualified personnel is essential for achieving optimal performance. -:- For detailed product information, please contact sales. -: Latrobe LSS™ D3 Tool Steel (ASTM D3) Specification Dimensions Size： Diameter 20-1000 mm Length <7193 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™ D3 Tool Steel (ASTM D3) Properties -:- For detailed product information, please contact sales. -:

Spherical Latrobe LSS™ D3 Tool Steel Powder (ASTM D3) Particle Size Description -:- For detailed product information, please contact sales. -: Applications of Spherical Latrobe LSS™ D3 Tool Steel Powder (ASTM D3) -:- For detailed product information, please contact sales. -: -:- For detailed product information, please contact sales. -: Applications of Latrobe LSS™ D3 Tool Steel Spherical Powder (ASTM D3) -:- For detailed product information, please contact sales. -: Chemical Identifiers Latrobe LSS™ D3 Tool Steel Spherical Powder (ASTM D3) -:- For detailed product information, please contact sales. -:

Packing of Latrobe LSS™ D3 Tool Steel Spherical Powder (ASTM D3) -:- 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 3664 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