Crucible Steel Flange,PDCQ Premium Quality High Toughness H13 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 PDCQ Premium Quality High Toughness H13 Steel Flange Product Information -:- For detailed product information, please contact sales. -: Crucible Steel Flange PDCQ Premium Quality High Toughness H13 Steel Flange Synonyms -:- For detailed product information, please contact sales. -:

Crucible Steel PDCQ Premium Quality High Toughness H13 Steel Product Information -:- For detailed product information, please contact sales. -: # **Product Introduction: Crucible Steel PDCQ Premium Quality High Toughness H13 Steel** Crucible Steel PDCQ represents the pinnacle of premium-quality, high-toughness AISI H13 hot work tool steel, specifically engineered for the most demanding die casting applications. The designation "PDCQ" signifies **Premium Die Casting Quality**, underscoring its optimized formulation for superior performance where thermal fatigue resistance, exceptional toughness, and dimensional stability are non-negotiable. While conforming to the standard H13 chemistry, PDCQ undergoes advanced secondary refining processes (such as Vacuum Degassing or Electroslag Remelting) and rigorous quality controls to achieve ultra-low levels of impurities and non-metallic inclusions. This results in a material with a **cleaner, more homogeneous, and isotropic microstructure**, which directly translates to dramatically enhanced transverse toughness, superior thermal fatigue resistance, and more predictable behavior under the severe cyclic thermal and mechanical stresses of high-pressure die casting. PDCQ is not merely H13; it is H13 perfected for critical applications where extended die life, reduced unscheduled downtime, and resistance to catastrophic failure are paramount to operational profitability and safety. --- ## **1. Chemical Composition (Weight %)** PDCQ adheres to the AISI H13 specification but with tighter impurity control and enhanced homogeneity. | **Element** | **Carbon (C)** | **Chromium (Cr)** | **Molybdenum (Mo)** | **Vanadium (V)** | **Silicon (Si)** | **Manganese (Mn)** | **Sulfur (S) / Phosphorus (P)** | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | **Content** | 0.37 - 0.42 | 5.00 - 5.50 | 1.25 - 1.75 | 0.90 - 1.20 | 0.90 - 1.20 | 0.30 - 0.60 | **≤ 0.005 (each)** | | **Role** | Provides balanced strength and hardness. Optimized level ensures toughness while supporting hot hardness. | Primary contributor to hardenability, hot hardness, and oxidation resistance. | Enhances hardenability, hot strength, and tempering resistance; refines grain. | Forms stable, fine vanadium carbides for wear resistance and grain refinement at high temperatures. | Improves oxidation resistance and solid solution strengthening. | Aids in deoxidation and hardenability. | **Key Quality Indicator.** Kept at **ultra-low levels** to maximize cleanliness, dramatically improving impact toughness and isotropy. | *Note: Iron (Fe) constitutes the remainder. The critical difference from standard H13 is the extremely low sulfur and phosphorus content (<50 ppm each) and reduced oxide/sulfide inclusion counts.* --- ## **2. Physical & Mechanical Properties** *Optimized for service at typical hot work hardness of 44-48 HRC, with properties significantly enhanced over standard H13.* * **Density:** 7.80 g/cm³ (0.282 lb/in³) * **Modulus of Elasticity:** ~210 GPa (30.5 x 10⁶ psi) * **Thermal Conductivity:** ~25 W/m·K at 20°C. * **Impact Toughness (Charpy):** **Superior.** The clean microstructure provides **significantly higher impact values**, both at room and elevated temperatures (up to 500°C / 930°F), often **30-50% higher than conventional H13**. This is its defining mechanical enhancement. * **Thermal Fatigue Resistance:** **Exceptional.** The combination of high toughness and homogeneous structure delays the initiation and slows the propagation of heat-check cracks, directly extending die life. * **Hot Hardness & Temper Resistance:** **Excellent.** Consistent with premium H13, maintaining strength at operating temperatures up to ~540°C (1000°F). * **Isotropy:** **Excellent.** Mechanical properties, especially toughness, are uniform in all directions (longitudinal and transverse), ensuring predictable performance regardless of die block orientation. * **Dimensional Stability:** **Excellent.** Predictable, minimal distortion during air hardening. * **Machinability & Polishability:** **Very Good to Excellent.** The cleaner steel allows for better surface finishes, easier polishing (critical for aluminum casting), and improved EDM performance. --- ## **3. Heat Treatment** Follows standard H13 protocols but responds more consistently due to its homogeneous structure. * **Annealing:** Heat to 845-870°C (1555-1600°F), slow cool. Annealed hardness: 192-229 HB. * **Stress Relieving:** 650-675°C (1200-1250°F), hold, then slow cool. * **Preheating:** **Critical.** Thorough preheat at 790-815°C (1450-1500°F). * **Austenitizing:** **1010-1040°C (1850-1900°F).** A common range is **1020-1030°C (1865-1885°F)** for optimal toughness. * **Quenching:** **Air quench** (forced air) or high-pressure gas quench for best dimensional control. * **Tempering:** **Mandatory Double or Triple Temper.** Temper immediately. **Minimum of two tempers** at **565-595°C (1050-1105°F)**, each for 2+ hours, to achieve 44-48 HRC and develop optimal toughness. * **Never use in the as-quenched state.** --- ## **4. Key Applications** PDCQ is specified for critical, high-performance die casting tools where failure is costly. * **Large & Complex Aluminum Die Casting Dies:** For automotive structural components (engine blocks, transmission cases, crossmembers), where die integrity is paramount. * **High-Pressure Thin-Wall Casting Dies:** Where thermal shock is extreme. * **Critical Cores and Inserts:** In areas of high mechanical stress or complex cooling channels. * **Zinc Die Casting Dies for High-Volume Production.** * **Precision Forging and Extrusion Dies:** For high-value aerospace or automotive components. * **Plastic Molds for Engineering Thermoplastics:** Where high clamp pressures and thermal cycling are involved. --- ## **5. International Standards & Cross-References** PDCQ is a premium quality H13, often meeting or exceeding the highest industry specifications for die casting. * **AISI/SAE:** **H13 (Premium / ESR Quality)** * **UNS:** T20813 * **European (EN):** **1.2344 (ESR)** – Electroslag Remelted grade denotes similar high purity. * **Japanese (JIS):** **SKD61 (Special Grade)** * **NADCA:** Exceeds the #207-2003 **Premium Grade** specification for die casting. * **Common Industry Equivalents:** Uddeholm ORVAR 2M, Böhler W302 ISODISC, Daido DAC, Thyssenkrupp GS-344 ESU. --- ## **6. Advantages & Limitations** **Advantages (vs. Conventional H13):** * **Extended Die Life:** The primary benefit, often by 30-100%, due to superior thermal fatigue resistance and toughness. * **Higher & More Consistent Toughness:** Greatly reduced risk of catastrophic cracking or sudden die failure. * **Improved Isotropy and Predictability:** Allows for more flexible die design and machining from any orientation. * **Better Polishability and Surface Integrity:** Critical for preventing soldering and improving cast part finish. * **Enhanced Machinability and EDM Performance.** **Limitations:** * **Higher Cost:** Premium quality commands a significant price premium, justified by extended tool life and reduced downtime. * **Same Functional Limits as H13:** Maximum service temperature, wear resistance, and need for surface treatment against erosion remain. * **Availability:** May have longer lead times than standard H13. --- ## **7. Summary** **Crucible Steel PDCQ is the definitive investment-grade H13 for the die casting industry.** It transforms the standard H13 workhorse into a high-reliability component by eliminating the microstructural imperfections that lead to premature failure. For die casters producing high-value, safety-critical, or large-scale components, the upfront investment in PDCQ translates directly into longer production runs, fewer unplanned maintenance stops, lower risk of catastrophic die failure, and ultimately, a lower cost per casting. It is not just a better grade of steel; it is a strategic tool for maximizing productivity, quality, and profitability in the most demanding die casting operations. When the cost of failure far exceeds the cost of the material, PDCQ is the only logical choice. -:- For detailed product information, please contact sales. -: Crucible Steel PDCQ Premium Quality High Toughness H13 Steel Specification Dimensions Size： Diameter 20-1000 mm Length <6995 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 PDCQ Premium Quality High Toughness H13 Steel Properties -:- For detailed product information, please contact sales. -:

Applications of Crucible Steel Flange PDCQ Premium Quality High Toughness H13 Steel Flange -:- For detailed product information, please contact sales. -: Chemical Identifiers Crucible Steel Flange PDCQ Premium Quality High Toughness H13 Steel Flange -:- For detailed product information, please contact sales. -:

Packing of Crucible Steel Flange PDCQ Premium Quality High Toughness H13 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 3466 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