Product Overview
The Welding Neck Flange is a vital component widely used in piping systems to ensure secure and leak-proof connections. Manufactured with precision and designed to meet stringent industry standards, this flange type is renowned for its superior performance, particularly in high-pressure and high-temperature environments. Our Welding Neck Flanges are available in a comprehensive size range from 1/2 inch to 48 inches, making them suitable for various applications across different industries including oil and gas, chemical processing, power generation, and marine engineering.
One of the key attributes of our Welding Neck Flanges is their exceptional corrosion resistance, which largely depends on the material grade used in production. We offer flanges made from premium China materials such as ER 309L Mo and ER 316L Si (F316), ensuring outstanding durability and longevity in corrosive environments. These materials provide excellent resistance to oxidation and various chemical agents, making them ideal for use in aggressive media and harsh operating conditions.
The thickness specification for our Welding Neck Flanges is SCH 40S, which guarantees adequate mechanical strength and stability while maintaining compatibility with standard piping components. SCH 40S schedule thickness strikes a balance between robustness and operational efficiency, allowing the flange to withstand significant pressure without compromising the integrity of the connection.
Specialized Flange Variants
Our product range also includes specialized flanges like the duplex 2205 EN 1092-1 weld neck flange, known for its exceptional mechanical properties and resistance to stress corrosion cracking. Duplex 2205 stainless steel combines the benefits of austenitic and ferritic stainless steels, offering enhanced strength and superior corrosion resistance, particularly in chloride-rich environments. This makes it a preferred choice for demanding applications where reliability and performance are critical.
In addition to the duplex 2205 weld neck flange, we provide the Duplex 2507 Blind Flange (1.4501) EN 1092-1 | Super Duplex PN40, which is engineered to handle extremely high pressures and aggressive environments. The Super Duplex PN40 flange is designed according to EN 1092-1 standards, ensuring compatibility and interchangeability with other piping components. Its robust construction and superior corrosion resistance make it suitable for offshore and chemical industries where safety and durability are paramount.
For applications requiring high-temperature resistance and strength, we also offer the 13CrMo4-5 (1.7335) Weld Neck Flange | EN 1092-1 Type 11 PN25. This alloy flange is specifically designed to perform under elevated temperatures and moderate pressures, making it ideal for power plants, refineries, and other industrial settings that demand reliable performance under thermal stress. The EN 1092-1 Type 11 PN25 specification ensures that this flange meets rigorous European standards for quality and safety.
Design & Engineering Advantages
Our Welding Neck Flanges are manufactured with precision welding necks that provide a smooth transition from flange thickness to pipe thickness, reducing stress concentration and improving fatigue resistance. The beveled end allows for seamless welding to the pipe, enhancing the integrity and strength of the joint. This design is particularly advantageous in applications where cyclic loading and vibration are concerns, as it minimizes the risk of flange failure.
In summary, our Welding Neck Flange product line offers a versatile, durable, and high-performance solution for piping systems across diverse industries. With a broad size range from 1/2 inch to 48 inches, SCH 40S thickness, and availability in high-grade corrosion-resistant materials like ER 309L Mo and ER 316L Si (F316), these flanges are engineered to meet the toughest operational demands. Whether you require the specialized duplex 2205 EN 1092-1 weld neck flange, the robust Duplex 2507 Blind Flange (1.4501) EN 1092-1 | Super Duplex PN40, or the high-temperature resistant 13CrMo4-5 (1.7335) Weld Neck Flange | EN 1092-1 Type 11 PN25, our products guarantee quality, reliability, and compliance with international standards.
Key Features
- Product Name: Welding Neck Flange
- Thickness: SCH 40S
- Material Number: P245GH flange
- Flange thickness: Varies by size and pressure class
- China Material: ER 309L Mo + ER 316L Si (F316)
- Standard Compliance: ASME B16.5, ASME B16.47, API 6A
- Compatible with EN 1092-1 Stainless Steel Flange Set | 1.4404 / 1.4541 / 1.4571 Full Range
- Includes 1.4571 (316Ti) Lap Joint Flange EN 1092-1 | Loose Flange PN10
Technical Parameters
| Flange Standard |
ASME B16.9 |
| Material Number |
P245GH |
| Standard |
ASME B16.5, ASME B16.47, API 6A |
| Flange Face |
FF, RF |
| Manufacturing Process |
Forged and Machined |
| Thickness |
SCH 40S |
| Flange Thickness |
Varies by Size and Pressure Class |
| Application |
Piping Systems, Pressure Vessels, Petrochemical Industry |
| Corrosion Resistance |
High (depending on material grade) |
| Flange Type |
Slip On Flange |
This Welding Neck Flange is suitable for various industrial applications such as piping systems, pressure vessels, and the petrochemical industry. It is manufactured according to the ASME B16.9 flange standard, using high-quality material P245GH with a forged and machined process. The flange thickness varies by size and pressure class, typically SCH 40S. The flange face options include FF and RF, ensuring compatibility and performance in diverse conditions.
Additionally, this product aligns with standards including ASME B16.5, ASME B16.47, and API 6A, offering high corrosion resistance depending on the material grade. It serves as a reliable component in pressure systems, embodying characteristics similar to those found in P355GH Slip-On Flange EN 1092-1 Type 21 PN40 Raised Face, P355GH Slip-On Flange EN 1092-1 Type 21 PN40 Raised Face, and P355GH flange EN 1092-1, ensuring robust performance and durability.
Applications
The Welding Neck Flange is an essential component widely used in various industrial applications due to its excellent strength, durability, and reliable performance. Manufactured through a precise forged and machined process, this flange conforms to stringent standards including ASME B16.5, ASME B16.47, and API 6A, ensuring compatibility and safety across diverse piping systems. With a thickness of SCH 40S and available in flange faces such as Flat Face (FF) and Raised Face (RF), it is designed to provide secure and leak-proof connections in high-pressure environments.
Typically made from high-quality material number P245GH, the Welding Neck Flange offers exceptional resistance to heat and corrosion, making it highly suitable for use in power plants, petrochemical industries, oil and gas pipelines, and chemical processing plants. The flange's robust construction allows it to withstand extreme temperatures and pressures, which is critical for applications involving steam, water, oil, and other fluids under demanding conditions.
In addition to P245GH, similar flanges such as 13CrMo4-5 weld neck flange EN 1092-1, X5CrNi18-10 flange, and EN 1092-1 weld neck flanges in P265GH, 16Mo3, 13CrMo4-5, 316L & duplex 2205 materials are also widely used in various industrial settings. These variants are available with pressure ratings ranging from PN6 to PN160 and usually feature a raised face to enhance sealing efficiency. The versatility of these flanges makes them ideal for applications spanning from general industrial piping to specialized fields requiring corrosion-resistant alloys.
[Company] supplies EN 1092-1 flanges with 3.1 Material Test Certificates (MTC), ensuring traceability and compliance with international quality standards. These certificates provide assurance regarding the mechanical and chemical properties of the flange material, which is crucial for quality control and regulatory compliance in critical industries.
Overall, the Welding Neck Flange is indispensable in scenarios demanding strong, reliable, and high-integrity connections. Whether it is for new construction projects, maintenance, or retrofitting of existing pipelines, this flange type is preferred for its superior mechanical properties and compatibility with a wide range of materials and standards. Its application occasions include high-pressure steam lines, chemical reactors, offshore platforms, and other environments where safety and performance are paramount.
Customization Options
Our Welding Neck Flange product offers extensive customization services to meet your specific requirements. Manufactured with a thickness of SCH 40S and adhering to standards such as ASME B16.5, ASME B16.47, and API 6A, these flanges ensure robust performance and reliability.
We provide flanges with different face types, including Flat Face (FF) and Raised Face (RF), tailored to your application needs. With high corrosion resistance dependent on the selected material grade, our range includes specialized products such as the 13CrMo4-5 flange, known for its durability in demanding environments.
Additionally, we offer EN 1092-1 Type 11 Weld Neck Flanges made from P265GH (1.0425) with PN16 Raised Face, ensuring compliance with European standards. For more demanding applications, our Duplex 2507 Blind Flange (1.4501) EN 1092-1 | Super Duplex PN40 provides superior corrosion resistance and strength.
All our welding neck flanges are compatible with the 1.0038 keyword specification, ensuring precise material identification and quality assurance. Customize your flange dimensions, material grade, and flange face type to perfectly fit your project requirements.
Support & Services
Our Welding Neck Flange product is backed by comprehensive technical support and services to ensure optimal performance and customer satisfaction. We provide detailed installation guides, material specifications, and maintenance recommendations to help you achieve the best results in your welding projects. Our technical team is available to assist with product selection, compatibility questions, and troubleshooting to address any challenges you may encounter. Additionally, we offer customized solutions and value-added services to meet specific application requirements. Trust our expertise and commitment to quality for all your Welding Neck Flange needs.