Crucible Steel Flange,CPM® 4V® Tool 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. -: Crucible Steel Flange CPM® 4V® Tool Steel Flange Product Information -:- For detailed product information, please contact sales. -: Crucible Steel Flange CPM® 4V® Tool Steel Flange Synonyms -:- For detailed product information, please contact sales. -:

Crucible Steel CPM® 4V® Tool Steel Product Information -:- For detailed product information, please contact sales. -: # **Product Introduction: Crucible CPM® 4V® Tool Steel** Crucible CPM® 4V® is a premium particle metallurgy (PM), air-hardening tool steel strategically formulated to deliver an **exceptional balance of high wear resistance and superior toughness**, positioning itself as a versatile and robust choice for demanding industrial applications. Developed as a bridge between traditional high-toughness steels like A2 and ultra-high-wear steels like CPM 10V, CPM 4V offers a more wear-resistant alternative to D2 and A2 while maintaining significantly better toughness than CPM 10V. Its name reflects its moderate vanadium content, which is carefully calibrated to provide a substantial boost in abrasion resistance without inducing excessive brittleness. Manufactured via the Crucible Particle Metallurgy (CPM) process, CPM 4V features a fine, homogeneous distribution of vanadium carbides. This eliminates the coarse carbide banding of conventional steels, resulting in **greatly enhanced transverse toughness, excellent dimensional stability during heat treatment, improved grindability, and consistent, isotropic mechanical properties**. CPM 4V is engineered for tools and components that experience significant abrasive wear but must also withstand impact, shock loading, or high stress without chipping or fracturing. --- ## **1. Chemical Composition (Weight %)** The composition of CPM 4V is a carefully balanced alloy of carbon, chromium, molybdenum, and vanadium. | **Element** | **Carbon (C)** | **Chromium (Cr)** | **Vanadium (V)** | **Molybdenum (Mo)** | **Silicon (Si)** | **Manganese (Mn)** | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | **Content** | **1.35** | **4.75** | **3.75** | **4.50** | **0.50** | **0.50** | | **Role** | Provides the base for carbide formation and matrix hardness. Optimized to support high hardness while retaining good fracture resistance. | Imparts deep air hardenability and contributes to wear resistance through chromium carbide formation. Also offers mild corrosion resistance. | **Primary wear element.** At 3.75%, it forms a significant volume of hard, fine vanadium carbides (VC) that provide excellent abrasion resistance—more than D2, but less than higher-vanadium grades like 10V. | Enhances hardenability, refines grain structure, and significantly improves toughness and tempering resistance. | Deoxidizer and solid solution strengthener. | Aids in deoxidation and contributes to hardenability. | *Note: Iron (Fe) constitutes the remainder. This chemistry can be seen as a high-performance, PM-optimized blend bridging the gap between the M4 (high-speed steel) and D2 (cold work steel) families.* --- ## **2. Physical & Mechanical Properties** *Typical properties after proper heat treatment to a working hardness of 58-62 HRC.* * **Density:** ~7.78 g/cm³ (0.281 lb/in³) * **Modulus of Elasticity:** ~210 GPa (30.5 x 10⁶ psi) * **Thermal Conductivity:** Moderate for a tool steel. * **Coefficient of Thermal Expansion:** ~10.6 x 10⁻⁶/°C (20-200°C) * **Hardenability:** **Excellent.** Deep air-hardening characteristics suitable for large and complex sections. * **Hardness (Typical Working Range):** **57 - 63 HRC.** The most common and optimal working hardness is **59-61 HRC**, where it achieves its renowned balance of wear resistance and toughness. * **Abrasion Resistance:** **Very High.** Significantly better than D2 and A2 tool steels due to its substantial vanadium carbide content. It offers approximately 2-3 times the abrasion resistance of D2, providing excellent service life in wear applications. * **Impact Toughness:** **Excellent for its wear resistance level.** This is a key strength. CPM 4V possesses substantially higher toughness than CPM 10V and is notably tougher than conventional D2, especially in the transverse direction. Its toughness is comparable to or better than high-quality A2 at similar hardness levels. * **Dimensional Stability:** **Excellent.** Air hardening combined with the fine PM microstructure results in minimal distortion and predictable size change during heat treatment. * **Grindability:** **Fair to Good (for its performance class).** While more challenging than A2 or D2 due to hard vanadium carbides, it is significantly easier to grind than CPM 10V or other higher-vanadium steels. --- ## **3. Heat Treatment** * **Annealing:** Heat to 870-900°C (1600-1650°F), slow cool. Annealed hardness: 240-280 HB. * **Stress Relieving:** 650-675°C (1200-1250°F), hold, then slow cool. * **Preheating:** **Essential.** Use a double preheat: First at 540-650°C (1000-1200°F), then at 815-870°C (1500-1600°F). * **Austenitizing:** **1065-1120°C (1950-2050°F).** A common and effective temperature range is **1085-1105°C (1985-2025°F)**. Lower temperatures favor toughness; higher temperatures increase wear resistance and hardness. * **Quenching:** **Air quench** (still or forced air). High-pressure gas quenching is recommended for complex parts to maximize dimensional control. **Do not oil quench.** * **Tempering:** **Mandatory Double Temper.** Temper immediately after quenching. **Two tempers**, each for 2+ hours, are standard. **Typical tempering range: 540-595°C (1000-1100°F)** to achieve 59-61 HRC. For applications requiring higher hardness (62-63 HRC) with some trade-off in toughness, temper at 205-425°C (400-800°F). --- ## **4. Key Applications** CPM 4V is an excellent choice for a wide range of demanding industrial tooling that requires a balance of durability and wear life. * **Heavy-Duty Blanking, Punching & Forming Dies:** Punches, dies, and shear blades for stamping and forming high-strength, abrasive, or stainless steels. * **Industrial Knives & Slitters:** Blades for cutting paper, plastics, rubber, composites, and non-ferrous metals where resistance to chipping and extended edge life are critical. * **Wear Parts & Machinery Components:** Wear plates, guide rails, feed rolls, and screws in abrasive environments. * **Cold Work Tooling:** Thread rolls, forming rolls, and extrusion tooling. * **Woodworking & Size Reduction Tools:** Chipper knives, planer blades, and granulator rotors for processed wood and recycled materials. * **High-Performance Custom Cutlery:** Hard-use knives designed for demanding outdoor, tactical, or industrial use that prioritize both edge retention and durability. --- ## **5. International Standards & Cross-References** CPM 4V is a proprietary CPM grade. It does not have a direct AISI equivalent but is often compared to modified versions of standard grades. * **AISI/SAE:** No direct equivalent. It is closest in concept to a **high-vanadium, high-toughness modification of D2 or M4**, processed via PM. * **UNS:** No standard designation. * **European (EN):** No direct equivalent. * **Common Industry Comparisons:** It is frequently positioned between **CPM M4** (higher hot hardness, slightly lower toughness) and **CPM 10V** (higher wear, lower toughness). It is often considered Crucible's counterpart to other manufacturers' "4V" or similarly balanced high-toughness/high-wear PM grades. --- ## **6. Advantages & Limitations** **Advantages:** * **Superior Toughness-to-Wear Ratio:** Delivers one of the best practical balances between high abrasion resistance and high impact toughness available in a tool steel. * **Excellent Versatility:** A true "workhorse" high-performance steel suitable for a broad range of severe applications. * **Outstanding Dimensional Stability:** Simplifies the manufacture of precision tools with complex geometries. * **Good Grindability:** Easier to finish and resharpen than other high-vanadium PM steels. * **Air-Hardening & Consistent PM Microstructure:** Reliable heat treatment and isotropic properties reduce risk and improve tool life predictability. **Limitations:** * **Not Stainless:** Will corrode if not protected; corrosion resistance is only fair, similar to D2. * **Not the Ultimate in Pure Wear Resistance:** Outperformed in pure abrasive wear by steels like CPM 10V and 15V. * **Cost:** Higher than conventional tool steels like D2 or A2 due to PM processing, but often more cost-effective than extreme-wear steels when factoring in reduced breakage. --- ## **7. Summary** **Crucible CPM® 4V® is a masterfully engineered, balanced-performance tool steel designed for reliability and longevity in punishing applications.** It solves the perennial engineering challenge of selecting a material that is both hard-wearing and durable under shock. By offering wear resistance far beyond D2 with toughness that approaches or exceeds that of A2, CPM 4V provides a compelling upgrade path that extends tool life, reduces unplanned downtime from breakage, and increases productivity. For tool designers and manufacturers who need a robust, high-performance material that won't fail unexpectedly, CPM 4V represents an optimal blend of resilience and performance, making it a top choice for demanding industrial tooling and cutting applications. -:- For detailed product information, please contact sales. -: Crucible Steel CPM® 4V® Tool Steel Specification Dimensions Size： Diameter 20-1000 mm Length <6974 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. -: Crucible Steel CPM® 4V® Tool Steel Properties -:- For detailed product information, please contact sales. -:

Applications of Crucible Steel Flange CPM® 4V® Tool Steel Flange -:- For detailed product information, please contact sales. -: Chemical Identifiers Crucible Steel Flange CPM® 4V® Tool Steel Flange -:- For detailed product information, please contact sales. -:

Packing of Crucible Steel Flange CPM® 4V® Tool 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 3445 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