ASTM A36 Steel Flange, bar

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 A36 Steel Flange, bar Product Information -:- For detailed product information, please contact sales. -: ASTM A36 Steel Flange, bar Synonyms -:- For detailed product information, please contact sales. -:

ASTM A36 Steel, bar Product Information -:- For detailed product information, please contact sales. -: ### **Product Introduction: ASTM A36 Steel Bar** **ASTM A36** is one of the most widely used carbon structural steels for bar products, offering a balanced combination of strength, ductility, and weldability. This specification covers carbon steel bars of various shapes including rounds, squares, flats, and hexagons suitable for bolted, riveted, or welded construction of bridges and buildings, and for general structural purposes. --- #### **1. International Standards & Classification** **Primary Standard:** **ASTM A36/A36M** - "Standard Specification for Carbon Structural Steel" **Product Forms:** - Round bars - Square bars - Flat bars - Hexagonal bars **International Equivalents:** - **EN 10025-2**: S235JR - **JIS G3101**: SS400 - **GB/T 700**: Q235 - **ISO 630-2**: E235 --- #### **2. Chemical Composition** The chemical composition requirements for ASTM A36 bars: | Element | Composition (Maximum %) | |---|---| | Carbon (C) | 0.26 | | Manganese (Mn) | 0.80-1.20 | | Phosphorus (P) | 0.04 | | Sulfur (S) | 0.05 | | Silicon (Si) | 0.40 | | Copper (Cu) | 0.20 (when specified) | **Key Composition Features:** - **Moderate Carbon Content**: 0.26% maximum for weldability - **Manganese Enhancement**: 0.80-1.20% for strength - **Standard Impurity Limits**: Typical commercial quality - **Optional Copper**: For enhanced atmospheric corrosion resistance --- #### **3. Physical & Mechanical Properties** **Mechanical Properties:** | Property | Value | |---|---| | **Tensile Strength** | 400-550 MPa (58-80 ksi) | | **Yield Strength (min.)** | 250 MPa (36 ksi) | | **Elongation in 2" (min.)** | 20% | | **Elongation in 8" (min.)** | 23% | **Physical Properties:** - **Density**: 7.85 g/cm³ (0.284 lb/in³) - **Modulus of Elasticity**: 200 GPa (29,000 ksi) - **Poisson's Ratio**: 0.29 - **Thermal Conductivity**: 51.9 W/m·K - **Coefficient of Thermal Expansion**: 11.7 × 10⁻⁶/°C - **Specific Heat Capacity**: 486 J/kg·K --- #### **4. Product Applications** **Structural Construction:** - Building frames and supports - Bridge components - Structural connections - Base plates and brackets **Industrial Manufacturing:** - Machinery frames and bases - Equipment supports - Industrial brackets - Machine components **General Fabrication:** - Fabricated structural parts - Support structures - Fastener components - General hardware **Infrastructure Projects:** - Construction accessories - Temporary structures - Reinforcement elements - Utility supports --- #### **5. Fabrication Characteristics** **Machining Performance:** - **Good Machinability**: 65-70% of B1112 steel - **Turning Operations**: Excellent with standard tools - **Drilling Performance**: Good with HSS tools - **Surface Finish**: Adequate for structural applications **Welding Characteristics:** - **Excellent Weldability**: All common processes applicable - **No Preheat Required**: For most thicknesses and applications - **Recommended Processes**: SMAW, GMAW, FCAW - **Filler Metals**: E6013, E7018 or equivalent **Forming & Cutting:** - **Good Formability**: Suitable for cold bending - **Bend Radius**: Typically 1.5t for 90° bends - **Cutting Methods**: All standard methods applicable - **Shearing Quality**: Good with proper equipment **Surface Treatment:** - **Painting Compatibility**: Excellent with proper surface preparation - **Galvanizing Suitability**: Good performance - **Surface Preparation**: Abrasive blasting typically used - **Coating Adhesion**: Good for various coating systems --- ### **Technical Summary** ASTM A36 steel bar represents the workhorse material of the structural steel industry, offering reliable performance and excellent fabrication characteristics at an economical cost. The 36 ksi minimum yield strength provides adequate load-bearing capacity for most structural applications while maintaining good ductility and impact resistance. The balanced chemical composition ensures good weldability without requiring special precautions in most applications, making A36 particularly suitable for fabricated structures and construction projects. The material's consistent mechanical properties and widespread availability have established it as the default choice for general structural applications across multiple industries. A36 bars demonstrate excellent manufacturing characteristics, including good machinability, formability, and weldability, allowing for efficient fabrication and modification on-site. The material's predictable behavior and reliable performance have made it the preferred choice for structural engineers, fabricators, and construction professionals worldwide. The versatility of ASTM A36 bars, available in various shapes and sizes, combined with their cost-effectiveness and proven performance history, ensures their continued dominance in structural applications ranging from building construction and bridge components to industrial machinery and general fabrication projects where reliable structural performance and economic considerations are paramount. -:- For detailed product information, please contact sales. -: ASTM A36 Steel, bar Specification Dimensions Size： Diameter 20-1000 mm Length <4359 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 A36 Steel, bar Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A36 Steel Flange, bar -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A36 Steel Flange, bar -:- For detailed product information, please contact sales. -:

Packing of ASTM A36 Steel Flange, bar -:- 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 830 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