ASTM A570 Steel Flange, grade 36

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 A570 Steel Flange, grade 36 Product Information -:- For detailed product information, please contact sales. -: ASTM A570 Steel Flange, grade 36 Synonyms -:- For detailed product information, please contact sales. -:

ASTM A570 Steel, grade 36 Product Information -:- For detailed product information, please contact sales. -: ### **Product Introduction: ASTM A570 Grade 36 Steel** **ASTM A570 Grade 36** is a hot-rolled carbon steel sheet and strip specifically designed for structural applications, providing a minimum yield strength of **36 ksi (250 MPa)**. As one of the most widely used grades in the A570 series, it offers an optimal balance of strength, formability, and cost-effectiveness. This grade serves as a versatile structural steel suitable for various fabricated components where reliable performance and economical manufacturing are key considerations. --- #### **1. International Standards & Grades** **Primary Standard:** **ASTM A570/A570M** - "Standard Specification for Steel, Sheet and Strip, Carbon, Hot-Rolled, Structural Quality" **Grade Classification:** - **Grade 36** [250 MPa] - Minimum yield strength 36 ksi - Other grades in A570 series: 30, 33, 40, 45, 50, 55 **International Equivalents:** - **EN 10025-2**: S275JR/S275J0 - **JIS G3101**: SS400 - **GB/T 700**: Q275 - **ISO 630-2**: E275A-E275D --- #### **2. Chemical Composition** The chemical composition requirements for ASTM A570 Grade 36: | Element | Composition (Maximum %) | |---|---| | Carbon (C) | 0.25 | | Manganese (Mn) | 0.90 | | Phosphorus (P) | 0.04 | | Sulfur (S) | 0.05 | | Silicon (Si) | 0.40 (optional) | **Key Composition Features:** - **Carbon-Manganese Steel**: Simple, cost-effective composition - **Balanced Carbon Content**: Ensures good weldability and formability - **Manganese Contribution**: Provides solid solution strengthening - **Controlled Impurities**: Limited phosphorus and sulfur for improved ductility --- #### **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 (20-100°C) - **Electrical Resistivity**: 0.18 μΩ·m --- #### **4. Product Applications** **Construction & Building:** - Structural frames and supports - Roof and floor decking - Wall studs and framing members - Building purlins and girts **Transportation Equipment:** - Truck and trailer frames - Automotive chassis components - Railway car structural members - Vehicle body reinforcements **Industrial Machinery:** - Equipment frames and bases - Machine guards and enclosures - Conveyor system structures - Storage rack components **Infrastructure Projects:** - Highway guard rail supports - Signage support structures - Bridge approach panels - Temporary road plates **Commercial Applications:** - Storage shelving systems - Industrial work platforms - Equipment maintenance platforms - Material handling containers --- #### **5. Fabrication Characteristics** **Welding Performance:** - **Excellent Weldability**: All standard processes applicable - **Preheat Requirements**: Generally not required for thicknesses ≤ 1 inch - **Recommended Processes**: SMAW, GMAW, FCAW, Resistance welding - **Filler Metals**: E70XX series electrodes recommended **Forming & Machining:** - **Cold Forming**: Good formability with standard equipment - **Bend Radius**: Typically 1t to 1.5t for 90° bends - **Machinability**: Fair to good (approximately 60% of B1112 steel) - **Shearing & Punching**: Excellent performance with conventional tooling **Surface Quality:** - Standard hot-rolled surface with mill scale - Suitable for most coating systems after proper surface preparation - Pickled and oiled finish available for critical painting applications **Heat Treatment:** - Supplied in as-rolled condition - Stress relieving available when specified - Annealing possible for enhanced formability --- ### **Technical Summary** ASTM A570 Grade 36 represents a well-balanced structural steel that has become an industry standard for moderate-strength applications. Its popularity stems from the optimal combination of 36 ksi yield strength with excellent fabrication characteristics and cost-effectiveness. The grade provides sufficient strength for most general structural applications while maintaining the formability and weldability advantages of carbon steel. Its predictable performance and consistent quality make it a preferred choice for fabricators across multiple industries. While it doesn't offer the specialized properties of high-strength or weathering steels, its reliable performance and economical nature ensure its continued widespread use in construction, transportation, and general manufacturing applications. The material's versatility and proven track record make it an excellent choice for projects requiring dependable structural performance without premium material costs. -:- For detailed product information, please contact sales. -: ASTM A570 Steel, grade 36 Specification Dimensions Size： Diameter 20-1000 mm Length <4294 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 A570 Steel, grade 36 Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A570 Steel Flange, grade 36 -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A570 Steel Flange, grade 36 -:- For detailed product information, please contact sales. -:

Packing of ASTM A570 Steel Flange, grade 36 -:- 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 765 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