ASTM A501 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. -: ASTM A501 Steel Flange Product Information -:- For detailed product information, please contact sales. -: ASTM A501 Steel Flange Synonyms -:- For detailed product information, please contact sales. -:

ASTM A501 Steel Product Information -:- For detailed product information, please contact sales. -: ### **Technical Data Sheet: ASTM A501 Steel, Hot-Formed Welded and Seamless Carbon Steel Structural Tubing** --- #### **1. Product Overview** ASTM A501 is a specification for **hot-formed welded and seamless carbon steel structural tubing** used in construction and structural applications. This standard covers black and hot-dipped galvanized hot-formed welded and seamless square, round, rectangular, and special shape structural tubing intended for various structural applications. Unlike cold-formed tubing (A500), A501 tubing is formed while the steel is hot, resulting in different mechanical properties and fabrication characteristics. --- #### **2. International Standards & Equivalents** | Standard Organization | Designation | |-----------------------|-------------| | **ASTM International** | **A501** | | **UNS Number** | **K02504** | | **ISO International Standard** | **ISO 10799** | | **European Norm (EN)** | **EN 10210-1** | | **Canadian Standards Association** | **CSA G40.21** | | **Japanese (JIS)** | **G 3444** | --- #### **3. Chemical Composition (Weight %)** | Element | Composition (%) | |---------|-----------------| | **Carbon (C)** | 0.26 max | | **Manganese (Mn)** | 1.35 max | | **Phosphorus (P)** | 0.035 max | | **Sulfur (S)** | 0.035 max | | **Copper (Cu)** | 0.20 min (when required) | | **Silicon (Si)** | 0.30 max | | **Iron (Fe)** | Balance | **Key Composition Features:** - **Controlled Carbon Content**: Maximum 0.26% for good weldability - **Manganese Enhancement**: Up to 1.35% for strength - **Standard Impurity Limits**: Typical for structural steel - **Copper Option**: Available for enhanced corrosion resistance - **Silicon Content**: For deoxidation and strength --- #### **4. Mechanical Properties** **Tensile Properties:** - **Tensile Strength**: 310 MPa (45,000 psi) min - **Yield Strength**: 230 MPa (33,000 psi) min - **Elongation in 50 mm (2 in)**: 25% min **Hardness Properties:** - **Brinell Hardness**: 95-145 HB typical **Shape-Specific Properties:** - **Round Tubing**: Uniform strength in all directions - **Square Tubing**: Equal strength in both principal axes - **Rectangular Tubing**: Directional strength characteristics - **Special Shapes**: Custom structural properties --- #### **5. Physical Properties** | Property | Value | |----------|-------| | **Density** | 7.85 g/cm³ (0.284 lb/in³) | | **Modulus of Elasticity** | 200 GPa (29,000 ksi) | | **Shear Modulus** | 77 GPa (11,200 ksi) | | **Poisson's Ratio** | 0.29 | | **Thermal Conductivity** | 52.0 W/m·K at 20°C | | **Coefficient of Thermal Expansion** | 11.7 × 10⁻⁶ /K (20-100°C) | | **Specific Heat Capacity** | 475 J/kg·K | --- #### **6. Product Applications** **Structural Construction:** - **Building Construction**: Columns, beams, and structural framing - **Bridge Components**: Structural members in pedestrian and vehicular bridges - **Transmission Towers**: Utility pole structures and support systems - **Heavy Construction**: Primary structural elements in industrial facilities **Industrial Applications:** - **Heavy Equipment**: Machinery frames and structural supports - **Material Handling**: Conveyor systems and heavy-duty racking - **Industrial Platforms**: Mezzanines, walkways, and access structures - **Mining Equipment**: Structural components in mining operations **Infrastructure Projects:** - **Highway Structures**: Sign supports, lighting standards, guardrail systems - **Marine Structures**: Dock facilities and waterfront structures - **Agricultural Equipment**: Heavy-duty farm machinery frames - **Recreational Structures**: Park equipment and recreational facilities --- #### **7. Manufacturing & Fabrication** **Hot-Forming Characteristics:** - **Manufacturing Process**: Formed while steel is hot, resulting in stress-relieved material - **Surface Quality**: Characteristic mill scale from hot-forming process - **Dimensional Stability**: Good for structural applications - **Corner Properties**: Rounded corners typical of hot-formed sections **Welding Performance:** - **Excellent Weldability**: All standard welding processes applicable - **Recommended Processes**: SMAW, GMAW, FCAW - **Pre-heat**: Generally not required for standard applications - **Filler Metals**: AWS E70XX series electrodes **Fabrication Advantages:** - **Machining**: Good machinability with standard equipment - **Cutting**: Suitable for sawing, abrasive cutting, and thermal cutting - **Connection Methods**: Compatible with both welded and bolted connections - **Surface Preparation**: Mill scale removal recommended for certain coatings --- #### **8. Quality Assurance & Testing** **Standard Tests:** - Chemical analysis - Tension test - Flattening test (for round tubing) - Bend test (for shaped tubing) - Visual inspection **Additional Tests (when specified):** - Hardness test - Impact test - Non-destructive testing - Dimensional verification --- #### **9. Corrosion Performance** - **Atmospheric Corrosion**: Good resistance in normal environments - **Mill Scale**: Provides some temporary protection - **Protection Methods**: Painting, galvanizing, or other coating systems - **Surface Preparation**: Mill scale removal recommended for optimal coating performance --- #### **10. Available Product Forms** **Standard Shapes and Sizes:** - **Round Tubing**: Various diameters from 12.7 mm upward - **Square Tubing**: Various sizes typically from 12.7 mm upward - **Rectangular Tubing**: Various dimension combinations - **Special Shapes**: Custom profiles as required **Surface Conditions:** - Black (hot-formed with mill scale) - Hot-dipped galvanized - Pickled and oiled (mill scale removed) - Painted or coated --- #### **11. Technical Specifications** **Dimensional Tolerances:** - **Outside Dimensions**: ±0.5% of specified dimension - **Wall Thickness**: ±10% - **Length**: +6 mm, -0 mm (+1/4", -0") - **Straightness**: 1.6 mm per meter (0.019 in per foot) **Structural Advantages:** - **Stress-Relieved**: Hot-forming process minimizes residual stresses - **Good Ductility**: Suitable for dynamic loading applications - **Weld Integrity**: Excellent weldability with proper procedures - **Structural Efficiency**: High strength-to-weight ratio --- **Technical Notes:** - Hot-formed tubing typically has more relaxed corner radii compared to cold-formed - Mill scale should be removed for certain coating applications - Suitable for both static and dynamic loading conditions - Must comply with applicable building codes and structural standards - Design should consider the unique characteristics of hot-formed sections - Galvanizing after fabrication provides excellent corrosion protection *This information is for reference purposes. For complete requirements and current specifications, consult the latest ASTM A501 standard and applicable structural design codes. Always verify material properties with certified mill test reports for structural applications.* -:- For detailed product information, please contact sales. -: ASTM A501 Steel Specification Dimensions Size： Diameter 20-1000 mm Length <4263 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 A501 Steel Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A501 Steel Flange -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A501 Steel Flange -:- For detailed product information, please contact sales. -:

Packing of ASTM A501 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 734 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