Latrobe,LSS™ A2 Tool Steel Rod/Bar (ASTM A2)

Latrobe LSS™ A2 Tool Steel Rod (ASTM A2) Product Information -:- For detailed product information, please contact sales. -: Latrobe LSS™ A2 Tool Steel Rod (ASTM A2) Synonyms -:- For detailed product information, please contact sales. -:

Latrobe LSS™ A2 Tool Steel (ASTM A2) Product Information -:- For detailed product information, please contact sales. -: # **Latrobe LSS™ A2 Tool Steel (ASTM A2)** ## **Product Overview** Latrobe LSS™ A2 is a premium air-hardening, medium-alloy cold work tool steel that sets the industry standard for dimensional stability and balanced performance. Conforming to the ASTM A2 specification, it offers an optimal combination of **good wear resistance, high compressive strength, and minimal distortion during heat treatment**. Its excellent through-hardening characteristics make it a versatile and reliable choice for a wide range of precision tooling applications where close tolerances and predictable performance are critical. ## **Key Features & Benefits** * **Excellent Dimensional Stability:** As an air-hardening grade, LSS™ A2 undergoes minimal size change and distortion during quenching compared to oil-hardening steels, making it ideal for complex tools and precision gauges. * **Good Wear Resistance:** Provides superior wear resistance to O1 and comparable grades, due to its higher chromium and carbon content, resulting in extended tool life in abrasive applications. * **Good Toughness:** Offers a better balance of toughness and wear resistance than higher-carbon, high-chromium grades like D2, reducing the risk of chipping in applications with moderate impact. * **Deep Hardenability:** Can be through-hardened in thicker sections with simple air quenching, ensuring uniform properties throughout the tool cross-section. * **Machinability & Grindability:** Exhibits good machinability in the annealed state and predictable grindability in the hardened state. ## **International Standard & Designations** * **Primary Standard:** **ASTM A681-08 (R2019):** Standard Specification for Tool Steel Alloy. * **Grade:** **A2** * **Unified Numbering System (UNS):** **T30102** * **Common International Equivalents:** * **ISO:** **100CrMoV5-1** * **Germany (DIN/W-Nr.):** **1.2363 / X100CrMoV5-1** * **Japan (JIS):** **SKD12** * **Sweden (SS):** **2260** ## **Chemical Composition (%, typical)** | Carbon (C) | Chromium (Cr) | Molybdenum (Mo) | Vanadium (V) | Manganese (Mn) | Silicon (Si) | Iron (Fe) | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | 0.95 - 1.05 | 4.75 - 5.50 | 0.90 - 1.40 | 0.15 - 0.50 | 0.40 - 0.80 | 0.15 - 0.40 | Balance | ## **Physical & Mechanical Properties (Typical)** | Property | Value / Description | | :--- | :--- | | **Density** | 7.86 g/cm³ (0.284 lb/in³) | | **Hardness (Annealed)** | 200-230 HB (Brinell) | | **Hardness (Heat Treated)** | **57 - 62 HRC** (Typical working range) | | **Austenitizing Temperature** | 925 - 980°C (1700 - 1795°F) | | **Quenching Medium** | Air (Still or Forced) | | **Tempering Temperature** | 175 - 540°C (350 - 1000°F). Commonly tempered at 205-425°C (400-800°F) to achieve target hardness and toughness. | | **Dimensional Change on Hardening** | Minimal expansion; typically +0.02% to +0.07%. | ## **Product Applications** Latrobe LSS™ A2 is a highly versatile steel used across numerous industries for durable, precision tooling. * **Blanking, Punching, and Forming Dies:** For medium-to-long run production of sheet metal parts. * **Machine Tools:** Arbors, chucks, collets, and fixtures requiring dimensional stability. * **Gages and Precision Measuring Instruments:** Master gears, thread rolls, and fixture plates. * **Molds:** Plastic injection molds and compression molds for engineering resins. * **Knives and Shear Blades:** For cutting paper, plastic, and soft metals. * **Rolls:** For cold rolling of ferrous and non-ferrous strip. ## **Processing & Heat Treatment Notes** * **Machining:** Best performed in the fully annealed condition. * **Heat Treatment:** Requires preheating to 650-700°C (1200-1300°F) before austenitizing to minimize thermal shock and distortion. After austenitizing, parts should be cooled in still or forced air to below 65°C (150°F) before tempering. **Double tempering is strongly recommended** to ensure complete transformation of retained austenite and to achieve dimensional stability. * **Surface Enhancement:** Can be nitrided or coated (e.g., TiN, CrN) to further improve surface hardness, wear resistance, and anti-galling properties for specific applications. --- **Disclaimer** *This product description provides typical information for A2 tool steel. Latrobe LSS™ A2 may feature proprietary processing for enhanced consistency. Properties are influenced by heat treatment and section size. For critical applications, always consult the latest official technical data sheets and processing guidelines from Latrobe Specialty Steel to determine suitability and optimal processing parameters.* -:- For detailed product information, please contact sales. -: Latrobe LSS™ A2 Tool Steel (ASTM A2) Specification Dimensions Size： Diameter 20-1000 mm Length <5349 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™ A2 Tool Steel (ASTM A2) Properties -:- For detailed product information, please contact sales. -:

Applications of Latrobe LSS™ A2 Tool Steel Rod (ASTM A2) -:- For detailed product information, please contact sales. -: Chemical Identifiers Latrobe LSS™ A2 Tool Steel Rod (ASTM A2) -:- For detailed product information, please contact sales. -:

Packing of Latrobe LSS™ A2 Tool Steel Rod (ASTM A2) -:- 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 Rod 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 1820 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