Latrobe,LSS™ A2 Tool Steel Flange (ASTM A2)

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

Packing of Latrobe LSS™ A2 Tool Steel Flange (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 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 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