ANSI/ASME B16.5 Carbon Steel Weld Neck Flanges Class 400LB WNRF A105 Raised Face RF FF

ANSI/ASME B16.5 Carbon Steel Weld Neck Flanges Class 400LB WNRF

Introduction:

We are Shaanxi Peter International Trade Co., Ltd., a reputable and well-established company of rich experience in the industry. As your reliable supplier, we have been providing high-quality ANSI CLASS 400 WELD NECK FLANGES for more than 20 years in the industry.

Our ANSI CLASS 400 weld neck flanges are designed to meet the specifications of ASME B16.5 and are made of durable materials, ensuring their high strength and resistance to corrosion. As one of the most widely used types of flanges, our weld neck flanges are suitable for use in various industries, including petroleum, natural gas, chemical, power generation, and more.

The ANSI CLASS 400 designation means that these flanges can withstand a maximum pressure of 740 psi, making them ideal for high-pressure applications. They also feature a long tapered hub and a beveled end that provides a smooth transition from the flange to the pipe, reducing turbulence and improving flow efficiency.

At Shaanxi Peter International Trade Co., Ltd., we prioritize customer satisfaction above all else. We understand the importance of providing reliable and durable products that meet the diverse needs of our clients. Our dedicated team of professionals works tirelessly to ensure that every weld neck flange leaving our facility meets the highest quality standards.

We pride ourselves on our commitment to continuous improvement and innovation. Our manufacturing process incorporates advanced technologies and techniques to ensure precise dimensions, excellent surface finishes, and superior corrosion resistance. By investing in state-of-the-art equipment and employing skilled technicians, we can guarantee the consistent quality of our ASME B16.5 Class 400 weld neck flanges.

ANSI/ASME B16.5 Class 400 Carbon Steel Weld Neck Flanges:

ANSI/ASME B16.5 Class 400 Carbon Steel Weld Neck Flanges are a specific type of flange that meets the dimensional and material requirements set by the American National Standards Institute (ANSI) and the American Society of Mechanical Engineers (ASME) for Class 400 flanges.

Here are some key features of ANSI/ASME B16.5 Class 400 Carbon Steel Weld Neck Flanges:

Design: The design of these flanges is weld neck, which means they have a long tapered hub with a circular rim that provides reinforcement and allows for easy welding to the pipe.

Material: These flanges are made from carbon steel, which is known for its strength, durability, and resistance to corrosion. Carbon steel is commonly used in various industrial applications due to its excellent mechanical properties.

Pressure Rating: ANSI/ASME B16.5 Class 400 Carbon Steel Weld Neck Flanges have a pressure rating of 400 pounds per square inch (PSI), making them suitable for high-pressure applications.

Size Range: These flanges are available in a range of sizes, typically from 1/2 inch up to 24 inches or larger, depending on the specific requirements of the application.

Dimensions and Tolerances: ANSI/ASME B16.5 Class 400 Carbon Steel Weld Neck Flanges follow the dimensions and tolerances specified in the ANSI/ASME B16.5 standard. This includes parameters such as outside diameter, overall height, bolt hole spacing, flange thickness, and other critical dimensions to ensure proper fit and compatibility with other components in the piping system.

Flange Facing: The flange facing for ANSI/ASME B16.5 Class 400 Carbon Steel Weld Neck Flanges typically follows the standard Raised Face (RF) or Ring Type Joint (RTJ) facing. This provides a reliable sealing surface for gaskets, ensuring effective sealing between flanges.

Testing and Certification: To ensure the quality and performance of these flanges, they may undergo various tests, such as hydrostatic testing, visual inspection, and dimensional checks. Manufacturers may provide certification documents, such as mill test reports, to verify compliance with the required standards.

ANSI/ASME B16.5 Weld Neck Flange Dimensions:

1.Dimensions are in millimeters(mm).

2.B1 can be specified by different purchasers.

3.For sizes 1/2’’-3.1/2’’, Dimensions of ASME B16.5 Class 400 Flanges are the same as ASME B16.5 Class 600 Flanges.

Advantages of Carbon Steel Weld Neck Flanges:

Carbon Steel Welding neck flanges have several characteristics that make them suitable for specific applications in piping systems. Some of the key characteristics of welding neck flanges include:

Strength and Durability: Carbon steel is known for its high strength and durability, making it an excellent material for weld neck flanges. These flanges can withstand high-pressure applications and provide long-lasting performance.

Corrosion Resistance: Carbon steel can be alloyed with other elements to enhance its resistance to corrosion. This makes carbon steel weld neck flanges suitable for use in environments where exposure to moisture, chemicals, or harsh conditions may occur.

Easy Welding and Installation: Weld neck flanges have a tapered hub and a beveled end, which allows for easy alignment and welding to the pipe. This design ensures a strong and secure connection, reducing the risk of leaks or failures.

Superior Sealing: The weld neck flange design provides a smooth transition from the flange to the pipe, resulting in better sealing capabilities. This helps prevent leakage and ensures efficient flow of fluids or gases.

Excellent Flow Characteristics: The long tapered hub of weld neck flanges promotes smooth fluid flow and minimizes turbulence. This improves overall system performance and reduces pressure drop.

Versatility: Carbon steel weld neck flanges are available in a wide range of sizes, pressure ratings, and specifications, making them suitable for various piping systems and applications. They can be used in industries such as oil and gas, petrochemical, power generation, water treatment, and more.

Cost-Effective: Carbon steel is a cost-effective material compared to other alloys, making carbon steel weld neck flanges a budget-friendly option for many projects.

Grades of Carbon Steel Flanges:

American standard carbon steel flanges are flanges made of carbon steel and are widely used in industries such as petroleum, chemical, natural gas, shipbuilding, construction, and water conservancy. Its carbon steel grades are usually divided into the following parts:

1.Q235: Q235 is a commonly used carbon structural steel grade specified in the Chinese national standard GB/T 700. It is often used in general engineering structures and manufacturing industries. In carbon steel flanges, Q235 material is commonly used for pipeline systems operating at low pressure, low temperature, and non-critical stress environments.

2.A105: A105 is a carbon steel material specified in the American ASTM standard, complying with ASTM A105/A105M requirements. A105 material has good weldability and mechanical properties, making it suitable for use in a wide temperature range from low to high temperatures. It is commonly used for pipeline systems and valve connections under high temperature and high-pressure conditions.

3.A350 LF2: A350 LF2 is also a carbon steel material specified in the ASTM standard, complying with ASTM A350/A350M requirements. LF2 indicates low-temperature service, and this material has good low-temperature toughness and crack resistance. It is commonly used for pipeline systems and valve connections under low-temperature conditions.

4.A694 F42/F52/F60/F65/F70: These material grades are specified in the ASTM A694 standard for carbon steel materials used in high-strength, low-temperature, or normal temperature high-pressure pipeline systems and valve connections. Different grades of materials have different strengths and corrosion resistance properties, suitable for various working conditions.

5.ASTM A181 Gr.1/Gr.2: These carbon steel flange material grades are suitable for pressure vessels, valves, and pipeline fittings under low pressure and low temperature conditions. They have good machinability and mechanical performance.

6.ASTM A516 Gr.70: Gr.70 is a commonly used medium carbon steel grade, known for its good weldability and machinability, suitable for manufacturing flanges and pipe fittings, among others.

7.A216 WCB: A216 WCB is a carbon steel casting material specified in the American ASTM standard, complying with ASTM A216/A216M requirements. WCB stands for cast carbon steel, and it is commonly used for carbon steel flanges that require casting in general engineering structures and manufacturing industries.

These material grades mentioned above are only a part of the commonly used ones, and there are other material grades in practical applications. When selecting the material grade for carbon steel flanges, it is necessary to consider engineering requirements, temperature, pressure, medium, and the requirements of relevant standards to ensure that the flange material meets the corresponding performance and safety requirements.

Applications of ASME B16.5 Class 400 Carbon Steel Weld Neck Flanges:

ASME B16.5 Class 400 Carbon Steel Weld Neck Flanges are designed for use in high-pressure and high-temperature applications where the ASME B16.5 standard and Class 400 pressure rating are specified. Here are some common applications of these flanges:

Oil and Gas Industry: Carbon steel weld neck flanges of Class 400 rating are commonly used in oil and gas processing facilities, refineries, and pipelines where high-pressure and high-temperature conditions are encountered. They are utilized for connecting piping systems, valves, and equipment that handle oil, gas, and related hydrocarbon products.

Petrochemical Industry: Weld Neck flanges of Class 400 find applications in petrochemical plants for connecting process equipment such as reactors, distillation columns, heat exchangers, and other high-pressure vessels.

Power plants: ASME B16.5 Class 400 weld neck flanges are used in power plants to connect key equipment such as boilers, steam pipes, and cooling water systems. These systems typically face high temperature and pressure conditions and require reliable pipeline connections to ensure safe and efficient operation. ASME B16.5 Class 400 weld neck flanges can meet these requirements and are widely used in thermal power plants, nuclear power plants, and other types of power plants.

Process Piping: ASME B16.5 Class 400 carbon steel weld neck flanges are commonly employed in various process piping systems where high-pressure ratings are required, such as in water treatment plants, pulp and paper mills, and food processing facilities.

Carbon steel weld neck flanges are pipeline connection components widely used in various industries. They play important roles in the petroleum and gas industry, chemical industry, power plants, and manufacturing industry, providing reliable pipeline connection solutions.