International Mold Steel Flange,PX5 Pre-Hardened Mold Steel Flange (P20 Type)

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. -: International Mold Steel Flange PX5 Pre-Hardened Mold Steel Flange (P20 Type) Product Information -:- For detailed product information, please contact sales. -: International Mold Steel Flange PX5 Pre-Hardened Mold Steel Flange (P20 Type) Synonyms -:- For detailed product information, please contact sales. -:

International Mold Steel PX5 Pre-Hardened Mold Steel (P20 Type) Product Information -:- For detailed product information, please contact sales. -: **Product Introduction: PX5 Pre-Hardened Mold Steel (P20 Type)** --- ### **1. Overview** **PX5** is a premium-grade **pre-hardened, through-hardening mold steel** belonging to the P20-type family. It is engineered and produced by International Mold Steel (IMS) to offer superior machinability, excellent polishability, and uniform hardness throughout large cross-sections directly from the mill. Supplied in a ready-to-machine state with a typical hardness of **28-32 HRC (or 290-330 HB)**, it eliminates the need for subsequent heat treatment by the mold maker for most applications, thereby saving significant time and reducing the risks of distortion associated with quenching. PX5 is specifically optimized for high-quality plastic injection molds and die-casting tooling, offering enhanced consistency and performance over standard P20 grades due to tighter controls on chemical composition, cleanliness, and homogeneity. --- ### **2. International Standards & Specifications** As a proprietary brand steel, PX5 is defined by the manufacturer's internal specifications designed to meet or exceed the requirements of common international P20-type standards. * **Primary Manufacturer Standard:** * **International Mold Steel (IMS) PX5:** Proprietary specification defining the enhanced properties and guaranteed performance. * **Key International Equivalents & Benchmarks:** * **AISI P20 Modified (UNS T51620):** Enhanced version of the standard AISI P20 tool steel. * **DIN 1.2311 / 1.2312 (GS-738 / GS-711):** The most common European pre-hardened mold steel designations. PX5 is a direct, high-quality counterpart. * **JIS G4404 SCM 440 Modified:** Often referenced, though Japanese P20-type steels have variations. * **ISO 4957 35CrMo2 (Type 1):** International standard classification. * **Industry Position:** PX5 is positioned as a **high-uniformity, high-purity version of 1.2311/GS-738**, often processed via advanced secondary refining (like vacuum degassing) to ensure superior internal soundness and isotropic properties. --- ### **3. Chemical Composition (Weight %, Typical)** The composition is balanced for hardenability, machinability, and polishability. | Element | Typical Range (%) | Role & Benefit | | :--- | :--- | :--- | | **Carbon (C)** | 0.33 – 0.40 | Provides core strength and hardness. Optimized for pre-hardening without compromising toughness. | | **Chromium (Cr)** | 1.70 – 2.00 | Increases hardenability for uniform through-thickness hardness, enhances wear resistance, and improves corrosion resistance slightly. | | **Manganese (Mn)** | 0.55 – 0.80 | Enhances hardenability and strength. | | **Molybdenum (Mo)** | 0.25 – 0.40 | **Critical for hardenability.** Promotes deep and uniform hardening, increases toughness, and refines grain structure. | | **Nickel (Ni)** | ~0.15 – 0.25 (optional enhancer) | May be present in some formulations to further improve toughness and hardenability in very large sections. | | **Silicon (Si)** | 0.20 – 0.40 | Deoxidizer, improves strength. | | **Sulfur (S)** | ≤ 0.005 (Low) / ≤ 0.060 (Free-Machining) | **Two variants:** **Low-S** (<0.005%) for **superior polishability and weldability**. **Free-Machining** (~0.05-0.06% S) for **excellent machinability**, at a slight cost to polishability. | | **Phosphorus (P)** | ≤ 0.025 | Impurity, kept low for toughness. | --- ### **4. Typical Physical & Mechanical Properties (As Pre-Hardened)** * **Delivery Condition:** Quenched and tempered (pre-hardened) at the mill. * **Hardness:** **28 – 32 HRC** (typical), equivalent to **290 – 330 HB (Brinell)**. Uniform across the entire section (e.g., up to 600mm thickness). * **Tensile Strength:** ~ 950 – 1100 MPa (138,000 – 160,000 psi) * **Yield Strength (0.2% Offset):** ~ 800 – 950 MPa (116,000 – 138,000 psi) * **Elongation:** ≥ 12% * **Impact Toughness (Charpy V-Notch):** ≥ 25 J (18 ft-lb) at room temperature. * **Density:** 7.85 g/cm³ * **Modulus of Elasticity:** ~ 210 GPa (30.5 x 10⁶ psi) * **Thermal Conductivity:** ~ 36 W/m·K (at 20°C) * **Machinability:** **Excellent** (especially the free-machining variant). Rated ~80-90% of 1% carbon steel. * **Polishability:** **Very Good to Excellent** (Low-Sulfur variant). Capable of achieving fine finishes (SPI #A1-A3) with proper technique. * **Weldability:** **Good** (Low-Sulfur variant). Requires pre-heat (~300-400°C/570-750°F) and post-weld stress relief. Use matching or recommended filler (e.g., AWS ER70S-6 or equivalent). --- ### **5. Product Application** PX5 is the workhorse material for a vast range of medium-to-large plastic injection molds. * **Plastic Injection Molds:** * **Large Molds:** For automotive parts (bumpers, dashboards, door panels), appliance housings, and crates. * **High-Volume Production Molds:** Where dimensional stability and wear resistance are key. * **Mold Bases, Cavities, and Cores:** For general-purpose and engineering plastics (ABS, PP, PE, PC, Nylon). * **Die Casting:** Backup plates, support pillars, and holder blocks for aluminum and zinc die-casting dies. * **Other Tooling:** Jigs, fixtures, and machine components requiring good strength and stability. --- ### **6. Key Features & Advantages** * **Eliminates Heat Treatment:** Ready for machining upon delivery, saving weeks in the manufacturing cycle and avoiding quenching distortion. * **Exceptional Through-Thickness Uniformity:** Advanced melting and heat treatment ensure consistent hardness and properties even in massive blocks. * **Superior Internal Cleanliness:** Low non-metallic inclusion levels result in better polishability, consistent engraving/texturing, and improved fatigue life. * **Excellent Machinability & EDM Performance:** Allows for faster machining speeds and finer finishes, reducing tool wear and production time. * **Good Balance of Toughness & Wear Resistance:** Suitable for molds with intricate details and those subjected to moderate abrasive wear. * **Reliable Nitriding Response:** Can be surface hardened via gas or plasma nitriding to increase surface hardness to 55-60 HRC for enhanced wear resistance on core pins and ejectors. --- **In summary, International Mold Steel PX5 represents a refined and reliable evolution of standard P20-type steel. It provides mold makers with a predictable, high-performance material that streamlines the manufacturing process, reduces risk, and delivers consistent results in the production of high-quality plastic injection molds and tooling.** -:- For detailed product information, please contact sales. -: International Mold Steel PX5 Pre-Hardened Mold Steel (P20 Type) Specification Dimensions Size： Diameter 20-1000 mm Length <7019 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. -: International Mold Steel PX5 Pre-Hardened Mold Steel (P20 Type) Properties -:- For detailed product information, please contact sales. -:

Applications of International Mold Steel Flange PX5 Pre-Hardened Mold Steel Flange (P20 Type) -:- For detailed product information, please contact sales. -: Chemical Identifiers International Mold Steel Flange PX5 Pre-Hardened Mold Steel Flange (P20 Type) -:- For detailed product information, please contact sales. -:

Packing of International Mold Steel Flange PX5 Pre-Hardened Mold Steel Flange (P20 Type) -:- 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 3490 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