ASTM A485 Steel Flange, Grade 2

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. -: ASTM A485 Steel Flange, Grade 2 Product Information -:- For detailed product information, please contact sales. -: ASTM A485 Steel Flange, Grade 2 Synonyms -:- For detailed product information, please contact sales. -:

ASTM A485 Steel, Grade 2 Product Information -:- For detailed product information, please contact sales. -: ### **Product Introduction: ASTM A485 Grade 2 High-Hardenability Steel** #### **1. Overview** ASTM A485 Grade 2 is an ultra-high hardenability bearing steel designed for applications requiring maximum depth of hardening in very large cross-sections. This grade offers superior hardenability characteristics compared to Grade 1, making it suitable for the largest and most demanding bearing components and heavy-duty mechanical parts. #### **2. Key International Standards** - **Primary Standard:** **ASTM A485** - Standard Specification for High Hardenability Anti-Friction Bearing Steel - **Processing Condition:** Typically supplied spheroidize annealed for machining - **International Equivalents:** - **ISO 683-17:** 100CrMnSi5-4-2 - **DIN:** 100CrMnSi5-4 - **JIS G4805:** SUJ4 (similar application) #### **3. Chemical Composition (Weight %)** | Element | Composition (%) | |---------|-----------------| | Carbon (C) | 0.90-1.05 | | Manganese (Mn) | 0.95-1.25 | | Silicon (Si) | 0.45-0.75 | | Chromium (Cr) | 1.05-1.35 | | Molybdenum (Mo) | 0.20-0.30 | | Phosphorus (P), max | 0.025 | | Sulfur (S), max | 0.025 | *Note: The increased manganese, chromium, and addition of molybdenum provide the enhanced hardenability characteristics.* #### **4. Mechanical & Physical Properties** **Heat Treated Properties (Oil Quenched & Tempered):** - **Hardness:** 58-65 HRC (typical) - **Tensile Strength:** 2050-2450 MPa (297-355 ksi) - **Yield Strength:** 1650-2050 MPa (239-297 ksi) - **Impact Toughness:** Good for through-hardened steel **Physical Properties:** - **Density:** 7.83 g/cm³ - **Modulus of Elasticity:** 205 GPa - **Thermal Conductivity:** 41 W/m·K (at 100°C) - **Coefficient of Thermal Expansion:** 12.4 × 10⁻⁶/K (20-100°C) #### **5. Product Applications** - **Extra-Large Bearings:** Bearings with cross-sections over 100 mm - **Heavy Equipment Components:** Large rolling mill bearings, mining equipment bearings - **Aerospace Bearings:** Critical aircraft bearing components - **Large Gears:** Heavy-duty transmission gears for industrial machinery - **Specialty Components:** High-stress parts requiring maximum hardenability #### **6. Key Characteristics & Advantages** - **Ultra-High Hardenability:** Maximum depth of hardening in very large sections - **Uniform Microstructure:** Consistent martensitic structure throughout large cross-sections - **Superior Wear Resistance:** Excellent resistance to rolling contact fatigue - **High Compression Strength:** Withstands extreme compressive loads - **Good Dimensional Control:** Predictable transformation during heat treatment #### **7. Heat Treatment Requirements** - **Annealing:** Spheroidize annealed at 790-810°C - **Hardening:** Austenitize at 830-850°C, oil quench - **Tempering:** 150-200°C for maximum hardness and stability - **Hardenability Band:** J9=15 min (Jominy test) #### **8. Fabrication Considerations** - **Machining:** Good machinability in annealed condition (187-229 HB) - **Grinding:** Excellent grinding response with proper techniques - **Dimensional Stability:** Requires careful heat treatment control - **Non-Destructive Testing:** Magnetic particle inspection recommended for critical applications ASTM A485 Grade 2 provides the ultimate solution for applications requiring maximum hardenability in bearing steels, offering manufacturers the capability to produce extremely large components with uniform hardness and exceptional performance characteristics for the most demanding industrial applications. -:- For detailed product information, please contact sales. -: ASTM A485 Steel, Grade 2 Specification Dimensions Size： Diameter 20-1000 mm Length <4396 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. -: ASTM A485 Steel, Grade 2 Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A485 Steel Flange, Grade 2 -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A485 Steel Flange, Grade 2 -:- For detailed product information, please contact sales. -:

Packing of ASTM A485 Steel Flange, Grade 2 -:- 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 867 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