10B20 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. -: 10B20 Steel Flange Product Information -:- For detailed product information, please contact sales. -: 10B20 Steel Flange Synonyms -:- For detailed product information, please contact sales. -:

10B20 Steel Product Information -:- For detailed product information, please contact sales. -: # 10B20 Steel Product Technical Datasheet ## 1. Overview 10B20 steel is a low-carbon boron-treated steel designed for applications requiring good hardenability and machinability. The addition of boron significantly enhances the hardenability of this steel without substantially increasing its carbon content, making it suitable for case-hardened components that require a hard surface and a tough core. ## 2. Chemical Composition (Weight %) | Element | Min (%) | Max (%) | Typical Value (%) | |---------|---------|---------|-------------------| | Carbon (C) | 0.18 | 0.23 | 0.20 | | Manganese (Mn) | 0.70 | 1.00 | 0.85 | | Phosphorus (P) | - | 0.035 | 0.015 | | Sulfur (S) | - | 0.035 | 0.025 | | Silicon (Si) | - | 0.40 | 0.25 | | Boron (B) | 0.0005 | 0.003 | 0.0015 | | Iron (Fe) | Balance | Balance | Balance | *Note: Boron content is critical and typically controlled within a narrow range to optimize hardenability.* ## 3. Physical & Mechanical Properties | Property | Typical Value / Condition | |----------|---------------------------| | **Density** | 7.85 g/cm³ (0.284 lb/in³) | | **Melting Point** | Approx. 1420-1460°C (2588-2660°F) | | **Modulus of Elasticity** | 190-210 GPa (27.5-30.5 x 10^6 psi) | | **Poisson's Ratio** | 0.29 | | **Thermal Conductivity** | 46-50 W/m·K (at 100°C) | | **Coefficient of Thermal Expansion** | 11.5 x 10^-6 /K (20-100°C) | | **Machinability** | Good (compared to standard carbon steels, ~70% of 1212 steel baseline) | | **Weldability** | Fair (Pre-heating and post-weld heat treatment may be required) | ### Typical Mechanical Properties (After Case Hardening) | Condition | Surface Hardness (HRC) | Core Tensile Strength | Core Yield Strength | Core Elongation (%) | |-----------|------------------------|------------------------|---------------------|---------------------| | Carburized & Quenched | 58-63 HRC | 850-1000 MPa | 550-700 MPa | 10-15% | ## 4. Heat Treatment Characteristics 10B20 is primarily designed for **carburizing (case hardening)**. - **Carburizing Temperature:** 900-930°C (1650-1700°F) - **Quenching:** Oil quenching is commonly used. - **Tempering:** 150-200°C (300-390°F) to relieve stresses without significantly reducing surface hardness. - **Effective Case Depth:** Can be controlled to achieve depths from 0.25 mm to 2.0 mm (0.010" to 0.080") based on time at temperature. ## 5. Product Forms & Availability - Hot-rolled or cold-drawn bars (rounds, flats, hexagons, squares) - Wire rods - Forging stock - Sheets and strips (less common) ## 6. Primary Applications 10B20 steel is widely used in manufacturing components that require a wear-resistant surface and a strong, impact-resistant core. - **Automotive Industry:** - Fasteners (high-strength bolts, screws, studs) - Gears and shafts (secondary, non-critical) - Clutch components - Steering system parts - **General Machinery:** - Pins and bushings - Chain parts - Agricultural equipment components - Hand tools requiring case hardening ## 7. International Standards & Cross-References | Country/Region | Standard Designation | Similar/Grade Name | |----------------|----------------------|---------------------| | **United States** | ASTM A29 / A304 | 10B20, SAE J404 (10B20) | | **International** | ISO 683-18 | Not directly equivalent; similar to type 1.7131 (Germany) | | **Japan** | JIS G4057 | Not a direct standard grade; similar concept to boron steels in JIS. | | **Germany** | DIN EN 10083-3 | 1.7131 (20MnB5) - *Note: This is a close analog but with slightly different Mn range.* | | **China** | GB/T 3077 | 20MnB | *Important Note:* While 10B20 is a specific SAE/AISI designation, international equivalents may have minor variations in chemical ranges. 20MnB5 (1.7131) is the most common European equivalent and is often used interchangeably for similar applications, though exact specifications should be verified for critical uses. ## 8. Key Advantages 1. **Cost-Effective Hardenability:** Boron addition provides hardenability similar to higher-alloy steels at a lower cost. 2. **Good Machinability:** Suitable for high-volume production of parts requiring significant machining prior to heat treatment. 3. **Good Core Toughness:** Low carbon core remains ductile and tough after case hardening. 4. **Wear Resistance:** When properly carburized and quenched, it achieves excellent surface hardness for wear applications. ## 9. Limitations & Considerations - **Not for High-Temperature Applications:** Loses core strength at elevated temperatures. - **Limited Section Size:** Hardenability, while improved by boron, is still limited compared to high-alloy steels. Maximum effective hardening diameter is typically under 50 mm (2 inches) for full hardening. - **Boron Sensitivity:** The hardenability effect is sensitive to the precise boron content and the presence of nitrogen; production must be well-controlled. ## 10. Compliance & Certification Material can typically be supplied with compliance to ASTM A29 and other relevant standards, along with applicable test reports (e.g., chemical analysis, hardenability data). --- *Disclaimer: This datasheet provides general information. For critical applications, consult the specific material standard and engage with qualified metallurgical engineers. Properties can vary based on manufacturing process, heat treatment, and section size.* -:- For detailed product information, please contact sales. -: 10B20 Steel Specification Dimensions Size： Diameter 20-1000 mm Length <4774 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. -: 10B20 Steel Properties -:- For detailed product information, please contact sales. -:

Applications of 10B20 Steel Flange -:- For detailed product information, please contact sales. -: Chemical Identifiers 10B20 Steel Flange -:- For detailed product information, please contact sales. -:

Packing of 10B20 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 1245 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