ASTM A715 Steel Flange, grade 50, type 1

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 A715 Steel Flange, grade 50, type 1 Product Information -:- For detailed product information, please contact sales. -: ASTM A715 Steel Flange, grade 50, type 1 Synonyms -:- For detailed product information, please contact sales. -:

ASTM A715 Steel, grade 50, type 1 Product Information -:- For detailed product information, please contact sales. -: # **Product Introduction: ASTM A715 Grade 50 Type 1 HSLA Steel** **ASTM A715 Grade 50 Type 1** is a **high-strength, low-alloy (HSLA) structural steel** supplied in the **hot-rolled condition without subsequent heat treatment**. It achieves its specified mechanical properties primarily through **microalloying with columbium (niobium) and/or vanadium** in combination with **controlled rolling** practices. This grade is designed to provide **enhanced strength and atmospheric corrosion resistance** compared to traditional carbon steels, while maintaining good weldability and formability. The "Type 1" designation specifically indicates a chemical composition intended to achieve a **minimum yield strength of 50 ksi (345 MPa)** in thicknesses up to and including 3/4 inch (19 mm), making it a cost-effective choice for lightweight, high-strength structural components. --- ## **International Standard & Key Specifications** * **Primary Standard:** **ASTM A715 / A715M** - Standard Specification for Steel Sheet and Strip, High-Strength, Low-Alloy, Hot-Rolled, and Cold-Rolled, with Improved Formability. * **Key Feature:** This standard emphasizes **improved formability** for grades 50 and 60, distinguishing it from other HSLA specifications that focus solely on strength. This is achieved through specific chemical controls and processing. * **Related Specifications:** * **ASTM A941** - Terminology relating to steel, stainless steel, related alloys, and ferroalloys. * **SAE J1392** - HSLA Steel - Hot Rolled Sheet and Strip. * **AWS D1.3** - Structural Welding Code - Sheet Steel (often applicable for thinner gauges). --- ## **Chemical Composition (Weight %, max unless range specified)** The composition is carefully balanced to achieve strength through precipitation hardening (via microalloys) while maintaining low carbon content for formability and weldability. Grade 50, Type 1 has the following typical composition limits: | Element | Composition (%) | Role in Performance | | :--- | :--- | :--- | | **Carbon (C)** | 0.15 max | Kept low to maximize weldability and formability. | | **Manganese (Mn)** | 1.65 max | Primary solid-solution strengthener. | | **Phosphorus (P)** | 0.035 max | Impurity, kept low for toughness. | | **Sulfur (S)** | 0.04 max | Impurity, kept low for weldability. | | **Silicon (Si)** | 0.60 max | Deoxidizer and strengthener. | | **Columbium (Cb/Nb)** | **0.005 - 0.15** | **Primary microalloying element.** Forms fine precipitates (NbC/NbCN) that inhibit grain growth and provide precipitation strengthening. | | **Vanadium (V)** | **0.01 - 0.15** | Alternative/complementary microalloy. Provides precipitation strengthening via V(C,N). | | **Copper (Cu)** | 0.20 min (when specified) | Added for enhanced atmospheric corrosion resistance when required. | **Note:** The steel is produced to achieve specified mechanical properties. The manufacturer may adjust the balance of Cb, V, and N within the specified ranges to optimize the strength-formability balance. --- ## **Typical Physical & Mechanical Properties** Properties are for hot-rolled sheet/strip, typically under 19 mm (0.75 in) thick. Thicker products may have lower yield strength due to reduced cooling rates. | Property | Value / Description | | :--- | :--- | | **Tensile Strength** | 415 - 550 MPa (60,000 - 80,000 psi) | | **Yield Strength (min)** | **345 MPa (50,000 psi)** | | **Elongation in 2-in (50 mm) (min)** | **22%** (This relatively high elongation reflects the "improved formability" focus of the spec.) | | **Yield-to-Tensile Ratio (max)** | Typically ≤ 0.75 | This limit ensures a margin of safety before ultimate failure and good formability. | | **Modulus of Elasticity** | ~200 GPa (29 x 10⁶ psi) | | **Density** | ~7.85 g/cm³ (0.284 lb/in³) | | **Atmospheric Corrosion Resistance** | Approximately **2 times** that of plain carbon steel (when Cu-bearing). | | **Formability** | Excellent for its strength level, suitable for moderate bending and stamping operations. | --- ## **Product Applications** ASTM A715 Grade 50 Type 1 is favored for applications requiring a combination of **reduced weight, higher strength, good formability, and moderate durability**, often where painting is used for final corrosion protection. **Primary Industries and Products:** 1. **Transportation Equipment:** * **Heavy Truck & Trailer:** Frame rails, crossmembers, suspension components, bumper reinforcements. * **Agricultural & Construction Machinery:** Roll-over protective structures (ROPS), cab frames, loader arms, chassis components. * **Rail Car:** Structural components and underframe parts. 2. **Storage & Material Handling:** * **Storage Racks** (selective, drive-in/drive-thru pallet racking). * **Heavy-duty shelving** and industrial lockers. * **Lifting equipment** frames and booms. 3. **Construction & Infrastructure:** * **Light structural supports** and framing in pre-engineered metal buildings. * **Bridge decking forms** and construction plates. * **Sign and signal support structures** (poles, brackets). 4. **General Fabrication:** * **Bases and frames** for industrial machines and presses. * **Platforms, walkways, and safety cages.** --- ## **Advantages and Fabrication Considerations** * **Advantages:** * **High Strength-to-Weight Ratio:** Enables lighter, more material-efficient designs. * **Superior Formability:** The "improved formability" designation means it can withstand more severe bending and stamping than conventional HSLA steels of similar strength. * **Good Weldability:** Low carbon equivalent (CE) allows welding with common processes (GMAW, GTAW, RW) without stringent preheat requirements for thinner gauges. * **Cost-Effective:** Achieves high strength without costly heat treatment. * **Fabrication Considerations:** * **Bend Radius:** While formability is improved, a minimum bend radius of approximately **2x material thickness** is generally recommended for 90-degree cold bending perpendicular to the rolling direction. * **Welding:** Standard low-hydrogen practices are recommended. Matching or under-matching strength filler metals can be used depending on the joint design and service requirements. * **Thermal Effects:** Exposure to temperatures above approximately **600°F (315°C)** can alter the precipitation-hardened microstructure, potentially lowering strength. This is critical if post-forming hot-dip galvanizing is planned; strength loss should be evaluated. * **Corrosion Protection:** For exterior use, painting or galvanizing is required for long-term corrosion protection unless a Cu-bearing grade is specified and the design leverages weathering steel principles. **In summary, ASTM A715 Grade 50 Type 1 is a technologically advanced, microalloyed HSLA steel that delivers a favorable combination of 50 ksi yield strength, excellent formability, and good weldability. It is an ideal material choice for engineers and fabricators designing and manufacturing weight-sensitive structural components that require complex forming operations, particularly in the transportation and heavy equipment sectors.** -:- For detailed product information, please contact sales. -: ASTM A715 Steel, grade 50, type 1 Specification Dimensions Size： Diameter 20-1000 mm Length <4517 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 A715 Steel, grade 50, type 1 Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A715 Steel Flange, grade 50, type 1 -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A715 Steel Flange, grade 50, type 1 -:- For detailed product information, please contact sales. -:

Packing of ASTM A715 Steel Flange, grade 50, type 1 -:- 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 988 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