ASTM A366, ASTM A569 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 A366, ASTM A569 Steel Flange Product Information -:- For detailed product information, please contact sales. -: ASTM A366, ASTM A569 Steel Flange Synonyms -:- For detailed product information, please contact sales. -:

ASTM A366, ASTM A569 Steel Product Information -:- For detailed product information, please contact sales. -: ### **Technical Data Sheet: ASTM A366 / A366M & ASTM A569 Steel** --- #### **1. Product Overview** **ASTM A366/A366M** covers steel sheet, carbon, cold-rolled, commercial quality, which is produced from continuously cast or ingot-cast steel. This specification is typically used for applications requiring good surface quality and uniformity in thickness. **ASTM A569** covers steel sheet, carbon, hot-rolled, commercial quality, which is produced from continuously cast or ingot-cast steel. This material is suitable for applications where surface finish is not of primary importance. Both specifications represent commercial quality steels with good formability and weldability, suitable for general purpose applications. --- #### **2. International Standards & Equivalents** | Standard Organization | A366/A366M Equivalent | A569 Equivalent | |-----------------------|------------------------|------------------| | **ASTM International** | **A366/A366M** | **A569** | | **UNS Number** | **G10080** | **G10050** | | **ISO International Standard** | **ISO 3574 CR1** | **ISO 3573 HR1** | | **European Norm (EN)** | **DC01** | **DD11** | | **Japanese (JIS)** | **SPCC** | **SPHC** | | **Chinese GB** | **Q195** | **Q215** | | **German (DIN)** | **DC01** | **StW22** | --- #### **3. Chemical Composition (Weight %)** **ASTM A366/A366M (Typical):** | Element | Composition (%) | |---------|-----------------| | **Carbon (C)** | 0.15 max | | **Manganese (Mn)** | 0.60 max | | **Phosphorus (P)** | 0.035 max | | **Sulfur (S)** | 0.035 max | | **Iron (Fe)** | Balance | **ASTM A569 (Typical):** | Element | Composition (%) | |---------|-----------------| | **Carbon (C)** | 0.15 max | | **Manganese (Mn)** | 0.60 max | | **Phosphorus (P)** | 0.035 max | | **Sulfur (S)** | 0.035 max | | **Iron (Fe)** | Balance | **Key Composition Features:** - **Low Carbon Content**: Ensures excellent formability and weldability - **Controlled Manganese**: Provides adequate strength - **Standard Impurity Limits**: Typical for commercial quality steels - **No Alloying Elements**: Plain carbon steel composition --- #### **4. Mechanical Properties** **ASTM A366/A366M Properties:** - **Tensile Strength**: 280 MPa (41,000 psi) min - **Yield Strength**: 170 MPa (25,000 psi) min - **Elongation in 50 mm (2 in)**: 25% min - **Hardness**: 55 HRB max (typical) **ASTM A569 Properties:** - **Tensile Strength**: 310 MPa (45,000 psi) min - **Yield Strength**: 165 MPa (24,000 psi) min - **Elongation in 50 mm (2 in)**: 27% min - **Hardness**: 65 HRB max (typical) --- #### **5. Physical Properties** | Property | A366/A366M Value | A569 Value | |----------|-------------------|------------| | **Density** | 7.85 g/cm³ | 7.85 g/cm³ | | **Modulus of Elasticity** | 200 GPa | 200 GPa | | **Shear Modulus** | 77 GPa | 77 GPa | | **Poisson's Ratio** | 0.29 | 0.29 | | **Thermal Conductivity** | 54.0 W/m·K | 53.0 W/m·K | | **Coefficient of Thermal Expansion** | 11.7 × 10⁻⁶ /K | 11.7 × 10⁻⁶ /K | | **Specific Heat Capacity** | 475 J/kg·K | 475 J/kg·K | --- #### **6. Product Applications** **ASTM A366/A366M Applications:** - Appliance cabinets and housings - Office equipment components - Electrical enclosures - Automotive non-structural parts - Furniture components - Lighting fixtures - Cabinet hardware **ASTM A569 Applications:** - Truck and trailer body panels - Agricultural equipment components - Storage cabinets and lockers - Ductwork and ventilation systems - Industrial equipment guards - Shelving and storage systems - General fabrication projects --- #### **7. Manufacturing & Fabrication** **Forming Characteristics:** - **A366/A366M**: Excellent for deep drawing and bending - **A569**: Good for moderate forming operations - **Surface Quality**: A366 offers superior surface finish - **Minimum Bend Radius**: 0.5 × thickness for both grades **Welding Performance:** - **Excellent Weldability**: All standard processes applicable - **Recommended Processes**: GMAW, GTAW, Resistance Welding - **No Pre-heat Required**: For most applications - **Filler Metals**: AWS E70XX series electrodes **Surface Finishing:** - **A366/A366M**: Suitable for painting, plating, and coating - **A569**: Good for painting and powder coating - **Surface Preparation**: Cleaning and phosphating recommended --- #### **8. Quality Assurance & Testing** **Standard Tests:** - Chemical analysis - Tension test - Bend test - Hardness test (when specified) - Surface quality inspection **Additional Requirements:** - Dimensional verification - Flatness measurement - Surface defect inspection - Coating adhesion tests (when coated) --- #### **9. Corrosion Performance** - **Atmospheric Corrosion**: Moderate resistance - **Protection Required**: Painting or coating for outdoor use - **Galvanizing Compatibility**: Excellent for both grades - **Indoor Applications**: Suitable without coating in dry environments --- #### **10. Available Product Forms** **ASTM A366/A366M:** - **Thickness Range**: 0.36 mm to 2.30 mm (0.014" to 0.090") - **Width Range**: 600 mm to 1500 mm (24" to 60") - **Surface Finish**: Commercial bright, matte, or specified finish **ASTM A569:** - **Thickness Range**: 1.50 mm to 6.00 mm (0.059" to 0.236") - **Width Range**: 600 mm to 2000 mm (24" to 80") - **Surface Finish**: Commercial hot-rolled, pickled and oiled --- #### **11. Technical Specifications** **Dimensional Tolerances (A366/A366M):** - **Thickness Tolerance**: ±0.05 mm to ±0.13 mm - **Width Tolerance**: +3 mm, -0 mm - **Length Tolerance**: +6 mm, -0 mm **Dimensional Tolerances (A569):** - **Thickness Tolerance**: ±0.15 mm to ±0.38 mm - **Width Tolerance**: +6 mm, -0 mm - **Length Tolerance**: +10 mm, -0 mm --- **Technical Notes:** - A366/A366M offers better surface finish and tighter tolerances - A569 provides cost-effective solution for non-critical applications - Both grades suitable for service temperatures from -30°C to 150°C - Not recommended for pressure vessel or structural applications - Proper storage recommended to prevent surface corrosion *This information is for reference purposes. For complete requirements and current specifications, consult the latest ASTM A366/A366M and A569 standards. Always verify material properties with certified mill test reports for critical applications.* -:- For detailed product information, please contact sales. -: ASTM A366, ASTM A569 Steel Specification Dimensions Size： Diameter 20-1000 mm Length <4243 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 A366, ASTM A569 Steel Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A366, ASTM A569 Steel Flange -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A366, ASTM A569 Steel Flange -:- For detailed product information, please contact sales. -:

Packing of ASTM A366, ASTM A569 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 714 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