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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Astralloy Astralloy-V® Air Hardened Wear Steel Flange Plate Product Information
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Astralloy Astralloy-V® Air Hardened Wear Steel Flange Plate Synonyms
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Astralloy Astralloy-V® Air Hardened Wear Steel Plate Product Information
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**Astralloy-V® Air-Hardened Wear-Resistant Steel Plate**
**Product Overview**
Astralloy-V® is a premium-grade, high-carbon, high-chromium air-hardening wear-resistant steel plate designed for applications demanding exceptional resistance to abrasion, impact, and deformation. Its proprietary chemistry and air-hardening capability allow it to achieve extreme surface hardness while maintaining good toughness and dimensional stability, offering superior service life in severe wear environments compared to conventional quenched and tempered or Brinell-hardened steels.
**Key Features & Advantages**
* **Extreme Wear Resistance:** Achieves a typical as-hardened surface hardness of **58-62 HRC** (approx. 650-700 HB), providing outstanding resistance to abrasive wear.
* **Air-Hardening Capability:** Hardens fully in still air after austenitizing, minimizing the risk of distortion, cracking, and size limitations associated with water or oil quenching. This simplifies heat treatment and allows for the fabrication of large or complex components.
* **High Impact Toughness:** The balanced microstructure provides significantly better impact resistance than many cast abrasion-resistant materials of similar hardness, reducing the risk of catastrophic failure under impact loads.
* **Good Machinability & Weldability:** In the annealed condition, it can be machined, formed, and welded with proper procedures, enabling fabrication before the final air-hardening treatment.
* **Through-Hardening:** Suitable for sections where wear occurs on multiple sides or edges.
**Chemical Composition (Typical Weight %)**
The precise composition is proprietary, but Astralloy-V® is based on a high-carbon, high-chromium tool steel formulation. A representative analysis is:
* **Carbon (C):** 0.45 - 0.60%
* **Chromium (Cr):** 4.75 - 5.50%
* **Molybdenum (Mo):** 0.90 - 1.40%
* **Vanadium (V):** 0.15 - 0.50%
* **Manganese (Mn):** 0.50 - 1.00%
* **Silicon (Si):** 0.20 - 0.80%
* **Other:** May include small additions of Nickel (Ni) and other elements for enhanced hardenability and toughness.
**Physical & Mechanical Properties**
* **Hardness (As-Hardened):** 58 - 62 HRC (Typical). Achieved by austenitizing at 1750-1850°F (954-1010°C) followed by air cooling.
* **Hardness (Annealed):** Typically 200-250 HB, supplied for fabrication.
* **Yield Strength (at Hardness 60 HRC):** > 200 ksi (≈ 1380 MPa)
* **Ultimate Tensile Strength:** > 230 ksi (≈ 1585 MPa)
* **Density:** 0.28 lb/in³ (≈ 7.75 g/cm³)
* **Modulus of Elasticity:** 29 x 10⁶ psi (≈ 200 GPa)
**Heat Treatment**
* **Austenitizing:** 1750 - 1850°F (954 - 1010°C), followed by **still air cooling** to below 150°F (66°C).
* **Tempering:** Mandatory double tempering at 350 - 500°F (177 - 260°C) for 2 hours per cycle minimum is required to achieve optimal toughness and stress relief. **Do not temper above 900°F (482°C)** to avoid significant softening.
* **Annealed Condition:** Supplied at ~200-250 HB for fabrication.
**International Standards & Equivalents**
While Astralloy-V® is a proprietary brand, its composition and performance are analogous to and often exceed specifications for standard air-hardening tool/wear steel grades. The closest international equivalents include:
* **ASTM A681:** Similar to Grade A8 (approximately).
* **UNS:** T20813
* **DIN / EN / Werkstoff Nr.:** 1.2363 / X100CrMoV5-1 (Close approximation; Astralloy-V® is more optimized for wear).
* **JIS G4404:** SKD6 (Similar category).
**Note:** Astralloy-V® offers proprietary enhancements and consistent quality that may not be fully captured by standard grade specifications.
**Typical Applications**
Astralloy-V® is ideal for components subjected to severe sliding abrasion, impact, and metal-to-metal wear, including:
* **Mining & Mineral Processing:** Liners for chutes, hoppers, bins, truck beds, shovel components, crusher parts, wear plates.
* **Construction & Earthmoving:** Excavator bucket tips, adapters, wear edges, liner plates for heavy equipment.
* **Aggregate & Cement Industry:** Crusher rolls, hammers, breaker plates, pulverizer components, classifier blades.
* **Forestry & Recycling:** Knives, anvils, shredder tips, wear parts in chippers and grinders.
* **Metalworking:** Shearing blades, forming dies, wear strips in high-abrasion environments.
**Availability**
Available in plate form in various thicknesses, widths, and lengths. Supplied in the annealed condition for fabrication, followed by user's final heat treatment (austenitizing and tempering) to achieve full wear properties.
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**Disclaimer:** The information provided is for reference purposes. Properties can vary based on section size and specific heat treatment practices. For critical applications, consult the manufacturer's latest technical data sheets and processing recommendations. "Astralloy" and "Astralloy-V" are believed to be registered trademarks.
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Astralloy Astralloy-V® Air Hardened Wear Steel Plate Specification
Dimensions
Size:
Diameter 20-1000 mm Length <7072 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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Astralloy Astralloy-V® Air Hardened Wear Steel Plate Properties
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Applications of Astralloy Astralloy-V® Air Hardened Wear Steel Flange Plate
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Chemical Identifiers Astralloy Astralloy-V® Air Hardened Wear Steel Flange Plate
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Packing of Astralloy Astralloy-V® Air Hardened Wear Steel Flange Plate
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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 3543 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