ASTM A709 Steel Flange, Grade 100 and 100W

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 A709 Steel Flange, Grade 100 and 100W, ≤ 64 mm Product Information -:- For detailed product information, please contact sales. -: ASTM A709 Steel Flange, Grade 100 and 100W, ≤ 64 mm Synonyms -:- For detailed product information, please contact sales. -:

ASTM A709 Steel, Grade 100 and 100W, ≤ 64 mm Product Information -:- For detailed product information, please contact sales. -: **Product Introduction: ASTM A709 Steel, Grade 100 & 100W, Thickness ≤ 64 mm** **1. Overview** ASTM A709 is the standard specification for structural steel for bridges, covering various grades of carbon, high-strength low-alloy (HSLA), and quenched and tempered alloy steel. Grades 100 and 100W within this specification represent high-strength, quenched and tempered alloy steel plates with a minimum yield strength of 100 ksi (690 MPa). The "W" designation indicates enhanced atmospheric corrosion resistance, approximately twice that of standard carbon steel. This product is supplied in the quenched and tempered condition with a maximum thickness of 64 mm, making it suitable for critical, weight-sensitive structural applications requiring superior strength and durability. **2. International Standard** The primary governing standard is **ASTM A709/A709M - Standard Specification for Structural Steel for Bridges**. Compliance with this standard ensures material quality and performance for bridge construction and other structural uses. For projects with welded fabrication, supplementary standards like AWS D1.5 (Bridge Welding Code) are typically referenced. **3. Chemical Composition (Heat Analysis)** The chemical composition is carefully balanced to achieve the required high strength, toughness, and weldability. Grade 100W includes added alloying elements like copper, chromium, and nickel for corrosion resistance. *Typical Composition Ranges (Weight %):* | Element | Grade 100 | Grade 100W | | :--- | :--- | :--- | | Carbon (C) | 0.10 - 0.20 | 0.10 - 0.20 | | Manganese (Mn) | 0.60 - 1.00 | 0.60 - 1.00 | | Phosphorus (P) | ≤ 0.030 | ≤ 0.030 | | Sulfur (S) | ≤ 0.006 | ≤ 0.006 | | Silicon (Si) | 0.15 - 0.30 | 0.15 - 0.30 | | Nickel (Ni) | 0.25 - 1.00 | 0.25 - 1.00 | | Chromium (Cr) | 0.40 - 0.70 | 0.40 - 0.70 | | Molybdenum (Mo) | 0.15 - 0.30 | 0.15 - 0.30 | | Vanadium (V) | 0.03 - 0.08 | 0.03 - 0.08 | | Copper (Cu) | 0.15 - 0.50 | **0.20 - 0.40** | | Boron (B) | 0.0005 - 0.005 | 0.0005 - 0.005 | | **Corrosion Index (Cu+Cr/3+Ni/4)** | - | **≥ 0.40%** | *Note: Specific limits may vary by thickness and manufacturer. The corrosion index is a key differentiator for 100W.* **4. Mechanical & Physical Properties (for material ≤ 64 mm thick)** *Guaranteed Minimum Mechanical Properties (Longitudinal Test):* | Property | Grade 100 | Grade 100W | | :--- | :--- | :--- | | Yield Strength (min) | 100 ksi (690 MPa) | 100 ksi (690 MPa) | | Tensile Strength | 110-130 ksi (760-895 MPa) | 110-130 ksi (760-895 MPa) | | Elongation in 2 in (min) | 19% | 19% | | **Charpy V-Notch Impact Energy** | | | | Test Temperature | -40°F (-40°C) | -40°F (-40°C) | | Minimum Avg. Energy | 35 ft-lbf (47 J) | 35 ft-lbf (47 J) | *Typical Physical Properties:* * Density: ~0.284 lb/in³ (7.85 g/cm³) * Modulus of Elasticity: 29,000 ksi (200 GPa) * Poisson's Ratio: 0.29 * Coefficient of Thermal Expansion: 6.5 x 10⁻⁶ /°F (11.7 x 10⁻⁶ /°C) **5. Product Applications** This high-performance steel is primarily engineered for demanding structural applications where reducing weight, increasing load capacity, and ensuring long-term integrity are paramount: * **Bridge Construction:** Primary members in long-span bridges (girders, trusses, arches), splice plates, and critical connections where high strength minimizes material use and dead load. * **Heavy-Duty Structures:** Frame components for high-rise buildings, offshore platforms, crane booms, and military bridges. * **Transportation Infrastructure:** Components for specialized heavy-haul vehicles and railway cars. * **Grade 100W Specific Use:** Ideal for bridge and architectural applications exposed to de-icing salts or marine environments (coastal bridges), often used in a bare (unpainted) condition or with protective coatings for extended service life. **6. Key Characteristics & Advantages** * **Exceptional Strength-to-Weight Ratio:** Enables lighter, more efficient structural designs. * **High Toughness:** Excellent impact resistance at low service temperatures, ensuring fracture-critical safety. * **Good Weldability:** Requires controlled welding procedures (preheat, low-hydrogen electrodes) but can be successfully welded for fabrication. * **Atmospheric Corrosion Resistance (100W):** Significantly longer service life in corrosive environments, reducing maintenance costs. * **Fabricability:** Can be sheared, punched, and formed with appropriate techniques considering its high strength. **Conclusion:** ASTM A709 Grades 100 and 100W (≤64 mm) represent the pinnacle of high-strength structural steel plate for bridge engineering. By offering a minimum yield strength of 690 MPa alongside guaranteed low-temperature toughness, they facilitate innovative, economical, and durable designs. The choice between Grade 100 and the weathering Grade 100W is dictated by the specific environmental exposure and lifecycle cost considerations of the project. -:- For detailed product information, please contact sales. -: ASTM A709 Steel, Grade 100 and 100W, ≤ 64 mm Specification Dimensions Size： Diameter 20-1000 mm Length <5698 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 A709 Steel, Grade 100 and 100W, ≤ 64 mm Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A709 Steel Flange, Grade 100 and 100W, ≤ 64 mm -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A709 Steel Flange, Grade 100 and 100W, ≤ 64 mm -:- For detailed product information, please contact sales. -:

Packing of ASTM A709 Steel Flange, Grade 100 and 100W, ≤ 64 mm -:- 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 2169 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