Latrobe,Tatmo-VN™ ASTM M7 High Speed Steel Flange

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 Tatmo-VN™ ASTM M7 High Speed Steel Flange Product Information -:- For detailed product information, please contact sales. -: Latrobe Tatmo-VN™ ASTM M7 High Speed Steel Flange Synonyms -:- For detailed product information, please contact sales. -:

Latrobe Tatmo-VN™ ASTM M7 High Speed Steel Product Information -:- For detailed product information, please contact sales. -: ### **Product Specification: Latrobe Tatmo-VN™ ASTM M7 High-Speed Steel** #### **1. Product Overview** Latrobe Tatmo-VN™ is a premium-grade, nitrogen-enhanced high-speed steel (HSS) conforming to ASTM A600 M7 specifications. Engineered for superior performance in demanding machining applications, this alloy combines high molybdenum-tungsten content with controlled nitrogen infusion to deliver exceptional **wear resistance, hot hardness, and toughness**. Designed as an advanced evolution of standard M7 HSS, Tatmo-VN™ excels in high-productivity environments where conventional HSS grades reach their performance limits. #### **2. Key Features & Advantages** - **Enhanced Nitride Network:** Proprietary nitrogen alloying promotes formation of stable carbonitrides, significantly improving wear resistance and edge retention - **Optimized Carbide Structure:** Balanced vanadium-molybdenum carbide distribution ensures consistent machining performance across varying loads - **Superior Thermal Stability:** Maintains cutting edge integrity at continuous operating temperatures up to 540°C (1004°F) - **Improved Grindability:** Special melt processing yields predictable grinding characteristics despite high hardness potential - **Consistent Microstructure:** Advanced solidification control minimizes segregation for uniform properties in all sections #### **3. Chemical Composition (Weight %)** Tatmo-VN™ meets and exceeds ASTM A600 M7 requirements with nitrogen enhancement: | Element | Specification Range | Typical Analysis | |---------|-------------------|-----------------| | **Carbon (C)** | 0.97–1.05 | 1.02 | | **Nitrogen (N)** | 0.08–0.15* | 0.12 | | **Molybdenum (Mo)** | 8.20–9.20 | 8.75 | | **Tungsten (W)** | 1.40–2.10 | 1.85 | | **Vanadium (V)** | 1.75–2.25 | 2.05 | | **Chromium (Cr)** | 3.50–4.00 | 3.75 | | **Silicon (Si)** | 0.20–0.45 | 0.30 | | **Manganese (Mn)** | 0.15–0.40 | 0.25 | | **Sulfur (S)** | ≤ 0.03 | 0.015 | | **Phosphorus (P)** | ≤ 0.03 | 0.020 | *Nitrogen content represents proprietary enhancement beyond standard M7 requirements #### **4. Physical & Mechanical Properties** **Physical Properties:** - Density: 8.15 g/cm³ (0.294 lb/in³) - Melting Range: 1425–1460°C (2597–2660°F) - Thermal Conductivity: 23.5 W/m·K at 20°C - Coefficient of Thermal Expansion: 10.8 × 10⁻⁶/K (20–400°C) - Elastic Modulus: 215 GPa (31,200 ksi) **Mechanical Properties (Heat Treated):** - Annealed Hardness: ≤ 255 HB (Brinell) - Hardened Hardness Range: 65–67 HRC - Transverse Rupture Strength: 3,800–4,200 MPa (551–609 ksi) - Compressive Strength: 3,200–3,600 MPa (464–522 ksi) - Impact Toughness: 18–22 J (13–16 ft·lb) #### **5. Heat Treatment Parameters** **Annealing:** Heat to 870–900°C (1600–1650°F), slow cool at ≤ 22°C/h (40°F/h) to 650°C (1200°F) **Hardening:** - Preheating: 815°C (1500°F) – double preheat recommended - Austenitizing: 1190–1215°C (2175–2220°F) - Quenching: Salt, oil, or controlled atmosphere - Tempering: Triple temper at 540–565°C (1000–1050°F), 2 hours minimum each cycle **Achievable Hardness:** 65–67 HRC (dependent on austenitizing temperature and tempering cycle) #### **6. Primary Applications** **Metal Cutting Tools:** - High-performance drills, taps, and reamers for stainless steels and nickel alloys - Gear hobs and broaches for automotive transmission components - Forming tools for aerospace alloy machining - CNC milling cutters for hardened steels (45–55 HRC) **Specialized Industrial Components:** - Cold work punches and dies for high-volume stamping - Precision knives for plastic and composite processing - Wear plates and guide components for high-abrasion environments - Thread rolling dies for fastener manufacturing #### **7. International Standards & Equivalents** **Primary Specification:** ASTM A600 M7 (Nitrogen Enhanced) **UNS Designation:** T11307 **Cross-Reference Equivalents:** - ISO: HS2-9-2 - DIN: 1.3348 (modified) - JIS: SKH58 - GB: W2Mo9Cr4V2 (近似) - Manufacturer Equivalents: Comparable to Böhler S500/S600 series #### **8. Performance Comparison** **vs. Standard M7:** 30–40% improvement in tool life under abrasive conditions **vs. M2 HSS:** Superior hot hardness and 50% better wear resistance **vs. M35/M42:** Better toughness with comparable wear resistance in non-interrupted cuts **vs. Powder Metallurgy HSS:** Cost-effective alternative with 85–90% of PM-HSS performance #### **9. Available Forms & Processing** - Hot-rolled bars: 5–150 mm diameter - Cold-drawn bars: 3–50 mm diameter - Precision ground stock: ±0.05 mm tolerance - Forged blanks: Custom dimensions - Special processing: Centerless grinding, peeling, black or bright finish #### **10. Technical Notes** - **Machining:** Requires carbide tooling for optimum results in annealed condition - **Grinding:** Use aluminum oxide or CBN wheels with ample coolant - **EDM Processing:** Excellent performance with standard wire/sinker EDM parameters - **Surface Treatment:** Compatible with PVD coatings (TiN, TiAlN, CrN) #### **11. Quality Assurance** - Melt practice: Electric arc furnace with ladle refinement - Ultrasonic testing: Per ASTM A388 standards - Microcleanliness: ≤ ASTM E45 Method A, Diagram 2 requirements - Decarburization: Controlled per AMS 2315D specifications **Disclaimer:** Technical data represents typical values. Specific application performance may vary based on heat treatment, geometry, and operating conditions. Consult Latrobe technical services for application engineering support. --- **LATROBE SPECIALTY METALS | CRS HOLDINGS, INC.** *Advanced Materials for Critical Applications* -:- For detailed product information, please contact sales. -: Latrobe Tatmo-VN™ ASTM M7 High Speed Steel Specification Dimensions Size： Diameter 20-1000 mm Length <5337 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 Tatmo-VN™ ASTM M7 High Speed Steel Properties -:- For detailed product information, please contact sales. -:

Applications of Latrobe Tatmo-VN™ ASTM M7 High Speed Steel Flange -:- For detailed product information, please contact sales. -: Chemical Identifiers Latrobe Tatmo-VN™ ASTM M7 High Speed Steel Flange -:- For detailed product information, please contact sales. -:

Packing of Latrobe Tatmo-VN™ ASTM M7 High Speed Steel Flange -:- 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 1808 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