ASTM A284 Steel Flange, grade C

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 A284 Steel Flange, grade C Product Information -:- For detailed product information, please contact sales. -: ASTM A284 Steel Flange, grade C Synonyms -:- For detailed product information, please contact sales. -:

ASTM A284 Steel, grade C Product Information -:- For detailed product information, please contact sales. -: ### **Technical Data Sheet: ASTM A284 / A284M Steel, Grade C** --- #### **1. Product Overview** ASTM A284 Grade C is a **low-carbon, low-manganese steel** specifically designed for applications requiring magnetic properties and moderate strength. This grade is part of the A284 standard covering uncoated, low-carbon steel plates primarily used for machine parts, magnetic applications, and general construction where good machinability and formability are required. Grade C offers a balanced combination of magnetic permeability, mechanical properties, and fabrication characteristics. --- #### **2. International Standards & Equivalents** | Standard Organization | Designation | |-----------------------|-------------| | **ASTM International** | **A284 / A284M Grade C** | | **UNS Number** | **K02502** | | **ISO International Standard** | **ISO 630-2** | | **European Norm (EN)** | **DC01** (Similar) | | **Japanese (JIS)** | **SPHC** | | **Chinese GB** | **Q195** | | **German (DIN)** | **RRSt 14** | --- #### **3. Chemical Composition (Weight %)** | Element | Composition (%) | |---------|-----------------| | **Carbon (C)** | 0.18 max | | **Manganese (Mn)** | 0.60 max | | **Phosphorus (P)** | 0.035 max | | **Sulfur (S)** | 0.035 max | | **Silicon (Si)** | 0.15 max | | **Copper (Cu)** | 0.20 min (when required) | | **Iron (Fe)** | Balance | **Key Composition Features:** - **Low Carbon Content**: Maximum 0.18% for good formability and weldability - **Restricted Manganese**: Maximum 0.60% for magnetic applications - **Low Silicon**: Maximum 0.15% to enhance magnetic properties - **Controlled Impurities**: Standard phosphorus and sulfur limits --- #### **4. Mechanical Properties** **Tensile Properties:** - **Tensile Strength**: 310-415 MPa (45,000-60,000 psi) - **Yield Strength**: 165 MPa (24,000 psi) min - **Elongation in 200 mm (8 in)**: 27% min - **Elongation in 50 mm (2 in)**: 30% min **Magnetic Properties:** - **Good Magnetic Permeability**: Suitable for electromagnetic applications - **Low Coercive Force**: Enhances magnetic performance - **Reasonable Saturation Induction**: Adequate for many magnetic circuits --- #### **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** | 53.5 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 | | **Electrical Resistivity** | 0.15 μΩ·m | --- #### **6. Product Applications** **Magnetic Applications:** - Motor and generator laminations - Transformer cores and components - Electromagnetic equipment parts - Magnetic shielding applications - Relay and solenoid components **General Manufacturing:** - Machine parts and components - Equipment frames and housings - General fabrication projects - Agricultural machinery parts - Automotive non-structural components **Construction & Industrial:** - Light structural applications - Support brackets and frames - Guard and safety equipment - Material handling components - Light-duty storage systems --- #### **7. Manufacturing & Fabrication** **Forming Characteristics:** - **Excellent Formability**: Suitable for deep drawing and bending - **Minimum Bend Radius**: 0.5 × thickness for 90° bends - **Stamping Quality**: Excellent for punching and blanking - **Surface Quality**: Good for painting and coating **Welding Performance:** - **Excellent Weldability**: All standard welding processes applicable - **No Pre-heat Required**: For most thicknesses - **Recommended Processes**: SMAW, GMAW, Resistance Welding - **Filler Metals**: AWS E70XX series or equivalent **Machining Characteristics:** - **Good Machinability**: With standard tooling - **Chip Formation**: Produces continuous chips - **Surface Finish**: Good with proper machining parameters - **Tool Life**: Excellent with appropriate cutting speeds --- #### **8. Quality Assurance & Testing** **Standard Tests:** - Chemical analysis (ladle analysis) - Tension test - Bend test (when specified) - Magnetic properties testing (when required) **Additional Tests (when specified):** - Hardness test - Impact test - Non-destructive examination - Dimensional verification --- #### **9. Corrosion Performance** - **Atmospheric Corrosion**: Moderate resistance in normal environments - **Protection Methods**: Painting, coating, or galvanizing - **Indoor Applications**: Suitable without coating in dry environments - **Maintenance**: Regular inspection recommended for outdoor use --- #### **10. Available Product Forms** **Standard Sizes:** - **Thickness Range**: 1.6 mm to 150 mm (1/16" to 6") - **Width Range**: 600 mm to 2500 mm (24" to 100") - **Length Range**: 2000 mm to 10000 mm (80" to 400") **Surface Conditions:** - Hot-rolled - Pickled and oiled - Cold-rolled (special order) - Annealed for magnetic applications --- #### **11. Technical Specifications** **Dimensional Tolerances:** - **Thickness Tolerance**: ±0.25 mm to ±1.2 mm - **Width Tolerance**: +20 mm, -0 mm (+0.8", -0") - **Length Tolerance**: +40 mm, -0 mm (+1.6", -0") - **Flatness**: 12 mm/m maximum --- **Technical Notes:** - Specifically designed for applications requiring magnetic properties - Lower manganese content enhances magnetic performance - Suitable for service temperatures down to -20°C (-4°F) - Not recommended for high-stress structural applications - Annealing may be required for optimal magnetic properties *This information is for reference purposes. For complete requirements and current specifications, consult the latest ASTM A284/A284M standard and applicable industry specifications. Always verify material properties with certified mill test reports for critical applications.* -:- For detailed product information, please contact sales. -: ASTM A284 Steel, grade C Specification Dimensions Size： Diameter 20-1000 mm Length <4241 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 A284 Steel, grade C Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A284 Steel Flange, grade C -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A284 Steel Flange, grade C -:- For detailed product information, please contact sales. -:

Packing of ASTM A284 Steel Flange, grade C -:- 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 712 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