ASTM A514 Steel Flange, grade L

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 A514 Steel Flange, grade L, plate thickness 19 - 64 mm Product Information -:- For detailed product information, please contact sales. -: ASTM A514 Steel Flange, grade L, plate thickness 19 - 64 mm Synonyms -:- For detailed product information, please contact sales. -:

ASTM A514 Steel, grade L, plate thickness 19 - 64 mm Product Information -:- For detailed product information, please contact sales. -: ### **Product Introduction: ASTM A514 Grade L Steel Plate (Thickness 19 - 64 mm)** **ASTM A514 Grade L** is a high-strength, quenched and tempered alloy steel plate specifically formulated to maintain exceptional mechanical properties in intermediate to heavy sections. As a member of the A514 family (commonly known as "T-1" type steels), Grade L delivers a minimum yield strength of 100 ksi (690 MPa) while providing excellent through-thickness properties and reliable weldability. The **19-64 mm thickness range** represents the core application thickness for primary structural components in heavy machinery and critical construction applications. --- #### **1. International Standards** **Primary Standard:** **ASTM A514/A514M** - "Standard Specification for High-Yield-Strength, Quenched and Tempered Alloy Steel Plate, Suitable for Welding" **International Equivalents:** - **EN 10025-6**: S690QL - **JIS G3128**: SHY685 - **ISO 4950-3**: EQ 690 **Note:** While these international grades share similar strength classifications, ASTM A514 Grade L maintains distinct chemical requirements, particularly in nickel content, that ensure consistent through-thickness performance in intermediate and heavy sections. --- #### **2. Chemical Composition** The chemical composition is engineered to maintain properties through thicker cross-sections: | Element | Composition (Maximum %) | |---------|-------------------------| | Carbon (C) | 0.10-0.20 | | Manganese (Mn) | 0.60-1.00 | | Phosphorus (P) | 0.025 | | Sulfur (S) | 0.025 | | Silicon (Si) | 0.15-0.35 | | Chromium (Cr) | 0.40-0.70 | | Molybdenum (Mo) | 0.15-0.25 | | Vanadium (V) | 0.03-0.08 | | Boron (B) | 0.001-0.005 | | Nickel (Ni) | 0.25-0.50 | **Key Composition Features:** - **Nickel Enhancement**: Critical for maintaining toughness in thicker sections - **Optimized Carbon**: Balances strength requirements with weldability - **Tight Impurity Control**: Lower phosphorus and sulfur for improved Z-direction properties - **Boron Treatment**: Ensures adequate hardenability through 64 mm thickness --- #### **3. Physical & Mechanical Properties** For plates in the 19-64 mm thickness range: | Property | Value | |----------|-------| | **Tensile Strength** | 770-930 MPa (112-135 ksi) | | **Yield Strength (min.)** | 690 MPa (100 ksi) | | **Elongation in 2" (min.)** | 16-18% | | **Reduction of Area (min.)** | 40% | | **Modulus of Elasticity** | 200 GPa (29,000 ksi) | | **Shear Modulus** | 77 GPa (11,200 ksi) | | **Poisson's Ratio** | 0.29 | | **Density** | 7.85 g/cm³ (0.284 lb/in³) | **Toughness Properties:** - **Charpy V-Notch Impact**: 40-54 J (30-40 ft-lbf) at -50°F (-45°C) - **Through-Thickness Properties**: Z-direction testing available per customer requirements - **Fracture Toughness**: Maintained through full thickness range --- #### **4. Product Applications** **Heavy Construction Equipment:** - Excavator main boom sections - Crawler crane upper structures - Bulldozer push frames and blade arms **Mining Machinery:** - Haul truck body structural members - Shovel dipper arms and handles - Crusher main frames and support structures **Material Handling Systems:** - Port crane main girders and booms - Stacker-reclaimer structural components - Heavy-duty forklift mast structures **Structural Applications:** - Bridge components for movable spans - Offshore platform structural modules - Power generation equipment supports **Special Applications:** - Heavy-duty trailer frames - Mining drill support structures - Large press frames and components --- #### **5. Fabrication Characteristics** **Welding Guidelines:** - **Preheat Temperature**: 200-300°F (95-150°C) depending on thickness and restraint - **Interpass Temperature**: 400°F (205°C) maximum - **Recommended Electrodes**: E11018, E12018 class or equivalent - **Post-Weld Heat Treatment**: Stress relieving at 1100-1150°F (595-620°C) recommended for highly restrained joints **Forming & Machining:** - **Cold Forming**: Moderate capability with appropriate tooling - **Hot Forming**: Recommended for severe deformation (1150-1200°F / 620-650°C) - **Machinability**: 40% of B1112 steel - requires carbide tooling and rigid setups - **Cutting Methods**: Plasma, laser, and waterjet cutting produce excellent results **Heat Treatment Status:** - Supplied in quenched and tempered condition - Maximum hardness: 302 HBW - Through-thickness hardness variation: ≤ 50 HBW points --- ### **Technical Summary** ASTM A514 Grade L in the 19-64 mm thickness range provides an optimal balance of high strength, excellent through-thickness properties, and reliable weldability for critical structural applications. The nickel-enhanced chemistry ensures consistent toughness through the entire thickness range, making it particularly suitable for highly stressed components in construction, mining, and material handling equipment. The material's robust performance characteristics, combined with its fabrication flexibility, make it a preferred choice for OEMs requiring reliable performance in demanding applications. Proper attention to welding procedures, including adequate preheat and potential post-weld heat treatment, is essential to maintain the material's excellent mechanical properties in finished components. -:- For detailed product information, please contact sales. -: ASTM A514 Steel, grade L, plate thickness 19 - 64 mm Specification Dimensions Size： Diameter 20-1000 mm Length <4286 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 A514 Steel, grade L, plate thickness 19 - 64 mm Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A514 Steel Flange, grade L, plate thickness 19 - 64 mm -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A514 Steel Flange, grade L, plate thickness 19 - 64 mm -:- For detailed product information, please contact sales. -:

Packing of ASTM A514 Steel Flange, grade L, plate thickness 19 - 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 757 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