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."
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International Mold Steel Flange Premium H13 Hot Work Die and Mold Steel Flange Product Information
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International Mold Steel Flange Premium H13 Hot Work Die and Mold Steel Flange Synonyms
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International Mold Steel Premium H13 Hot Work Die and Mold Steel Product Information
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# **Product Introduction: Premium H13 Hot Work Die and Mold Steel**
## **1. Overview**
**Premium H13** represents the highest quality tier of **chromium-molybdenum-vanadium hot work tool steel**, manufactured to exacting standards for the most demanding die and mold applications. This enhanced variant of standard AISI H13 (DIN 1.2344) is produced using advanced metallurgical processes such as **Electro-Slag Remelting (ESR)** or **Vacuum Arc Remelting (VAR)** to achieve exceptional **microstructural homogeneity, purity, and isotropic properties**. Designed for applications requiring superior **thermal fatigue resistance, high-temperature strength, toughness, and polishability**, Premium H13 is the material of choice for critical tooling in die casting, hot forging, and high-performance plastic injection molding where tool longevity and reliability are paramount.
## **2. International Standards & Specifications**
Premium H13 meets and exceeds the requirements of all major international standards for H13-type tool steels, with additional quality guarantees.
* **Primary Standards (Base Grade):**
* **AISI H13 (UNS T20813):** American Iron and Steel Institute designation.
* **DIN 1.2344 (X40CrMoV5-1):** German standard, the most widely recognized specification.
* **JIS G4404 SKD61:** Japanese Industrial Standard.
* **ISO 4957 X40CrMoV5-1:** International Standardization Organization classification.
* **Quality Designations for Premium Grade:**
* **ESR (Electro-Slag Remelted):** Indicates secondary refining for superior cleanliness and homogeneity.
* **VAR (Vacuum Arc Remelted):** Indicates vacuum remelting for ultra-high purity.
* **ISOPUR® / ISODISC®:** Manufacturer-specific trademarks for isotropic, premium-quality tool steels.
* **Industry Recognitions:** Often specified as "Premium H13," "Super H13," or "ESR H13" in technical requirements.
## **3. Chemical Composition (Weight %, Typical for Premium H13)**
The composition is carefully balanced and tightly controlled for optimal performance.
| Element | Typical Range (%) | Role & Benefit |
|---------|------------------|----------------|
| **Carbon (C)** | 0.37 – 0.42 | Provides base hardness and wear resistance; optimized for toughness/hardness balance. |
| **Chromium (Cr)** | 5.00 – 5.50 | **Primary alloying element.** Confers high tempering resistance ("red hardness"), oxidation resistance, and deep hardenability. |
| **Molybdenum (Mo)** | 1.20 – 1.60 | Enhances hardenability, high-temperature strength, toughness, and resistance to temper embrittlement. |
| **Vanadium (V)** | 0.90 – 1.10 | **Critical for wear resistance.** Forms hard, stable vanadium carbides (VC) that provide exceptional wear resistance, grain refinement, and secondary hardening. |
| **Silicon (Si)** | 0.90 – 1.10 | Improves oxidation resistance and strengthens the ferrite matrix; enhances thermal fatigue resistance. |
| **Manganese (Mn)** | 0.30 – 0.50 | Aids in hardenability and deoxidation. |
| **Sulfur (S)** | ≤ 0.002 (Ultra-Low) | **Kept extremely low** in premium grades to maximize **toughness, polishability, and isotropic properties**. This is a key differentiator from standard grades. |
| **Phosphorus (P)** | ≤ 0.015 (Low) | Minimized to prevent embrittlement. |
## **4. Typical Physical & Mechanical Properties (Heat Treated)**
* **Recommended Heat Treatment:**
* **Preheating:** 750-800°C (1382-1472°F)
* **Austenitizing:** 1020-1050°C (1868-1922°F)
* **Quenching:** Air or pressurized gas (oil quenching possible for complex shapes)
* **Tempering:** Double tempering at 540-600°C (1004-1112°F) to desired hardness.
* **Properties at Hardness 48-50 HRC (Typical for Die Casting):**
* **Tensile Strength:** 1600 – 1800 MPa (232,000 – 261,000 psi)
* **Yield Strength (0.2% Offset):** 1400 – 1550 MPa (203,000 – 225,000 psi)
* **Elongation:** 8 – 12%
* **Reduction of Area:** 30 – 45%
* **Impact Toughness (Charpy V-Notch):** 25 – 40 J (18 – 29 ft-lb) – **Excellent for this hardness level.**
* **High-Temperature Performance:**
* **Hot Hardness at 600°C (1112°F):** ~45 HRC
* **Thermal Fatigue Resistance:** **Exceptional** – resists heat checking initiation and propagation.
* **Temper Resistance:** Maintains hardness during prolonged exposure to operating temperatures.
* **Physical Properties:**
* **Density:** 7.80 g/cm³
* **Modulus of Elasticity:** 210 GPa (30.5 × 10⁶ psi)
* **Thermal Conductivity:** 24.0 – 26.0 W/m·K (at 20°C)
* **Coefficient of Thermal Expansion:** 11.5 × 10⁻⁶/°C (20–100°C)
* **Specific Heat:** 460 J/kg·K
## **5. Product Application**
Premium H13 is specified for the most critical and demanding tooling applications:
* **Aluminum, Magnesium, and Zinc Die Casting:**
* **Cavities and Cores** for automotive (engine blocks, transmission cases), electronics, and structural components.
* **Shot Sleeves, Nozzles, and Goosenecks.**
* **Inserts and Cores** for high-volume production.
* **Hot Forging and Extrusion:**
* **Forging Dies** for brass, aluminum, and steel components.
* **Extrusion Dies** for aluminum profiles.
* **Punch and Die Inserts** for hot work applications.
* **Plastic Injection Molding:**
* **Molds for High-Temperature Engineering Plastics** (PEEK, PEI, PPS, etc.).
* **Hot Runner Systems** (manifolds, nozzles).
* **Molds for Abrasive or Corrosive Materials** (filled resins, flame-retardant plastics).
* **Specialized Applications:**
* **Glass Mold Tooling**
* **Press Brake Dies** for high-temperature forming
* **Tooling for Isothermal Forging**
## **6. Key Features & Advantages of Premium H13**
* **Exceptional Toughness and Fatigue Resistance:** Ultra-low sulfur content and homogeneous microstructure provide superior resistance to thermal fatigue (heat checking) and mechanical shock.
* **Superior Isotropic Properties:** Advanced remelting processes ensure uniform mechanical properties in all directions, critical for predictable tool performance and longevity.
* **Excellent Polishability and Texture Transfer:** Extremely fine and uniform carbide distribution enables mirror-like finishes (SPI A1) and perfect replication of fine surface textures.
* **Enhanced Thermal Conductivity:** Faster heat dissipation compared to many other tool steels, reducing thermal gradients and stresses in the tool.
* **Outstanding High-Temperature Strength:** Maintains hardness and strength at operating temperatures up to **600°C (1112°F)**.
* **Improved Machinability and Grindability:** More consistent microstructure results in better machining characteristics and reduced risk of grinding burns.
* **Extended Tool Life:** Typically provides 30-100% longer service life compared to conventionally melted H13 in demanding applications.
* **Reduced Risk of Premature Failure:** Superior cleanliness minimizes the risk of failure initiation at non-metallic inclusions.
## **7. Manufacturing and Processing Considerations**
* **Melting Practice:** **ESR (Electro-Slag Remelting)** or **VAR (Vacuum Arc Remelting)** is mandatory for premium quality.
* **Heat Treatment:** Requires precise control; vacuum heat treatment is recommended to prevent decarburization and oxidation.
* **Surface Treatments:** Excellent candidate for **nitriding, PVD, or CVD coatings** to further enhance surface properties.
* **Welding:** Repairable with proper procedures; preheat and post-weld tempering are essential.
* **Quality Verification:** Should be accompanied by comprehensive testing reports including ultrasonic inspection, macro/microstructure analysis, and mechanical property testing.
**Summary:** Premium H13 represents the pinnacle of hot work tool steel technology, offering unparalleled performance for the most demanding die and mold applications. Its superior metallurgical quality, achieved through advanced remelting processes and strict compositional control, translates directly into longer tool life, reduced downtime, and higher quality production output. For critical applications where tool failure is not an option, Premium H13 provides the reliability and performance that standard grades cannot match.
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International Mold Steel Premium H13 Hot Work Die and Mold Steel Specification
Dimensions
Size：
Diameter 20-1000 mm Length <7028 mm
Size:We can customized as required
Standard：
Per your request or drawing
We can customized as required
Properties（Theoretical）
Chemical Composition
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International Mold Steel Premium H13 Hot Work Die and Mold Steel Properties
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Applications of International Mold Steel Flange Premium H13 Hot Work Die and Mold Steel Flange
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Chemical Identifiers International Mold Steel Flange Premium H13 Hot Work Die and Mold Steel Flange
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Packing of International Mold Steel Flange Premium H13 Hot Work Die and Mold Steel Flange
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Standard Packing:
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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 3499 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
