10 Piece (MOQ)
| Business Type | Manufacturer, Exporter, Retailer, Trader |
| Product Name | Weld Neck Flanges, WN Flange, WNFF Flange, WNRF Flange |
| Size Range | 1/2 inch (15 NB) to 48 inch (1200NB) |
| Class / Pressure Rating | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 |
| Click to view more | |
Product Details
Dimensions
ANSI B16.5, ANSI B16.47 Series A & B, ASA, API-605, MSS SP44, AWWA, Custom Drawings
Custom Design
As per your drawing, AS, BS, ANSI, DIN, JIS, Equal and Reducing Configurations
Applications/Usage
Offshore, Oil Field, Shipbuilding, Water System, Natural Gas, Pipe Projects, Electric Power, etc.
Premium Weld Neck Flange Manufacturer
When your pipeline systems demand absolute reliability under extreme pressure and temperature, you need a weld neck flange manufacturer you can trust. At Rising Star Steel Industries Private Limited, we engineer flanges that become the strongest link in your critical infrastructure. Our weld neck flanges are designed for butt-welding directly to pipes, providing unmatched stress distribution and long-term durability.
Product Overview
A weld neck flange is easily recognized by its long, tapered hub that transitions smoothly into the pipe wall. This unique geometry minimizes stress concentration at the joint—making it the preferred choice for high-pressure, high-temperature applications like oil refineries, chemical plants, power generation, and offshore drilling. We manufacture these flanges in multiple material grades, pressure classes, and dimensions to match your exact project specifications.
Key Features & Benefits
- Superior Stress Resistance: The tapered hub distributes mechanical load evenly, reducing the risk of joint failure near the weld.
- Leak-Proof Performance: Ideal for severe cycling conditions where vibration or thermal expansion is a concern.
- Full Material Traceability: Every flange comes with mill test certificates for complete quality assurance.
- Corrosion-Resistant Options: Available in stainless steel, carbon steel, and alloy grades for aggressive environments.
Why Choose Rising Star Steel Industries Private Limited?
We are not just another supplier; we are a partner in your project’s success. Unlike generic manufacturers, we combine decades of metallurgical expertise with modern precision forging and machining. Every weld neck flange we produce meets or exceeds ASTM, ASME, and ANSI standards. Our in-house quality team conducts rigorous dimensional, positive material identification (PMI), and non-destructive testing (NDT) before dispatch. When you choose us, you get consistent lead times, competitive pricing, and responsive technical support—no runarounds, no delays.
Conclusion
From high-pressure steam lines to corrosive chemical transfers, our flanges deliver safety and performance where it matters most. Ready to strengthen your pipeline system with a dependable weld neck flange manufacturer? Contact Rising Star Steel Industries Private Limited today for a quote, or request your custom size and material specification. Let’s build something that lasts.
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Weld Neck Flange FAQs
A Weld Neck Flange is a type of flange with a long tapered hub that is butt‑welded to a pipe. This design provides high strength, excellent stress distribution, and minimal turbulence in flow, making it ideal for high‑pressure and high‑temperature applications.
Weld Neck Flanges are widely used in industries such as oil & gas, petrochemical, power generation, chemical processing, shipbuilding, and water treatment, especially where safety and leak‑free connections are critical.
Weld Neck Flanges are manufactured using various materials including carbon steel, stainless steel, alloy steel, duplex and super duplex steel, and other corrosion‑resistant alloys depending on the application and industry standards
Reliable manufacturers adhere to international standards like ASME/ANSI, ASTM, DIN, EN, and API to ensure product quality, dimensional accuracy, and compatibility with global piping systems.
Choose manufacturers with strong industry experience, quality certifications (ISO, API), advanced machining capabilities, thorough inspection/testing processes, and ability to supply customized sizes and grades per project needs.
