Alloy flanges are essential components used in various industries to connect pipes, valves, pumps, and other equipment. These flanges offer superior strength, corrosion resistance, and durability , making them ideal for high-pressure and high-temperature applications. As a leading Alloy Pipe Flanges manufacturer in India, we provide a wide range of Alloy Steel Flanges that meet both international and domestic standards.
Our flanges are designed for industries such as oil & gas, petrochemical, power generation, marine, and construction — where strength and reliability matter the most. Whether you need Low Alloy Steel Blind Flanges, High Alloy Steel Socket Weld Flanges, or Alloy Slip On Flanges , we ensure top-notch quality, precision, and long service life.
What Are Alloy Flanges?
Alloy flanges are mechanical joints used to connect two sections of a pipe or equipment securely. They are made from alloy steels , which are combinations of iron with other elements like chromium, nickel, molybdenum, and vanadium. These additional elements enhance the flange’s properties — improving hardness, strength, wear resistance, and corrosion resistance
In simple terms, alloy flanges act as connectors that ensure safe fluid flow, easy maintenance, and seamless system integration in industrial piping systems.
Why Choose Stainless Steel Flange?
Compared to standard pipe connections,SS Flanges provide:
- Leak-proof joints
- High pressure and temperature resistance
- Easy maintenance and cleaning
- Reusability for long-term cost savings
This is why Stainless Steel Pipe Flanges are widely used in industries requiring corrosion resistance, strength, and reliability.
Types of Alloy Flanges We Manufacture
We manufacture and supply various types of Alloy Steel Pipe Flanges suitable for different connection methods and operational needs. Each type is carefully designed to provide excellent performance and reliability.
1. Alloy Slip On Flange
An Alloy Slip On Flange is easy to install and align, making it one of the most common flange types. The pipe simply slides into the flange bore before welding at both the inside and outside edges. These are perfect for low-pressure applications where frequent dismantling is required.
Applications: Water lines, oil & gas transport, shipbuilding, and chemical processing plants.
2. Alloy Welded Neck Flanges
Alloy Welded Neck Flanges are designed for high-pressure and high-temperature environments. They feature a long tapered hub that provides excellent stress distribution and reduces the risk of weld fatigue. Their robust design ensures leak-proof performance even under severe operating conditions.
Applications: Refineries, power plants, and heavy engineering industries.
3. Alloy Blind Flange
An Alloy Blind Flange is used to close or seal the end of a piping system or vessel opening. It allows easy access for inspection, cleaning, or future extension of the pipeline. These flanges are strong and can withstand high pressure from internal flow.
Applications: Petrochemical systems, hydraulic pipelines, and high-pressure vessels.
4. Alloy Socket Weld Flange
Alloy Socket Weld Flanges are used for small-bore piping systems where high leakage integrity is essential. The pipe is inserted into the socket and then fillet welded at the top, ensuring a smooth bore flow and minimizing turbulence.
Applications: Chemical and process industries, hydraulic lines, and steam systems.
5. Alloy Screwed (Threaded) Flange
An Alloy Screwed Flange connects pipes through threading instead of welding, which makes installation quick and convenient. These are particularly suitable for low-pressure, non-critical systems and areas where welding is not feasible.
Applications: Gas lines, water pipelines, and maintenance projects.
6. Alloy Lap Joint Flange
Alloy Lap Joint Flanges are used with a stub end and allow easy alignment and rotation after welding. These are ideal for systems that require frequent dismantling or cleaning.
Applications: Food processing, pharmaceutical industries, and low-pressure systems.
7. Alloy Reducer Flanges
An Alloy Reducer Flange connects pipes of different diameters while maintaining a strong, leak-proof connection. They are commonly used in systems requiring flow rate adjustment or pipe size transitions.
Applications: Oil & gas refineries, thermal plants, and chemical plants.
Grades of Alloy Steel Used in Flanges
Alloy flanges are available in low alloy and high alloy compositions, depending on their chemical makeup and the environment in which they are used.
- Low Alloy Steel Flanges: Excellent corrosion resistance, widely used in general industries.
- High Alloy Steel Flanges: High Alloy Steel Flanges are designed for extreme environments where resistance to oxidation, corrosion, and high temperature is crucial. They are commonly used in chemical plants, oil refineries, and marine applications.
Manufacturing Excellence and Quality Standards
As one of the trusted Alloy Steel Flanges Manufacturers in India Alloy Steel Flanges Manufacturers in India, we follow strict quality control at every production stage — from raw material sourcing to final inspection. Our flanges are produced using advanced forging and machining technologies to ensure precise dimensions and superior surface finish.
Every Alloy Steel Pipe Flange undergoes rigorous testing, including:
- Ultrasonic testing
- Radiographic inspection
- Pressure testing
- Chemical composition analysis
- Dimensional accuracy checks
This ensures our customers receive defect-free products that meet ASME, ASTM, ANSI, DIN, and BS standards.
Standards & Specifications
Our Alloy Steel Pipe Flanges conform to various international standards including:
- ASME/ANSI B16.5– Pipe Flanges and Flanged Fittings
- ASME B16.47– Large Diameter Steel Flanges
- MSS SP-44– Steel Pipeline Flanges
- BS 4504– British Standard for Flanges
- DIN– German Standard for Flanges
Pressure ratings: Class 150, 300, 600, 900, 1500, and 2500. Sizes available: ½” NB to 48” NB (custom sizes available upon request).
Applications of Alloy Steel Pipe Flanges
Alloy flanges are used across multiple sectors where high performance and corrosion resistance are essential. Some key industries include:
- Oil & Gas Industry:For pipelines, drilling, and offshore applications.
- Petrochemical Plants: For processing and transport of chemicals under pressure.
- Power Generation: In boilers, turbines, and heat exchangers
- Marine Industry: For shipbuilding and offshore structures.
- Construction & Engineering: In heavy machinery and high-pressure systems.
- Water Treatment & Desalination Plants: For corrosive and saline environments.
Advantages of Alloy Flanges
Choosing Alloy Steel Flanges provides several operational and cost-saving benefits:
- Excellent Strength: Capable of withstanding extreme pressure and temperature.
- Corrosion Resistance: Ideal for aggressive chemical and marine environments.
- Long Service Life: Reduced need for replacements or repairs.
- Versatility: Available in different designs, sizes, and pressure classes.
- Easy Maintenance: Facilitates quick assembly, disassembly, and inspection.
- Leak-Proof Connections: Especially with Alloy welded Neck Flanges and Alloy Socket Weld Flanges.
Why Choose Us as Your Alloy Steel Flange Supplier in India
As a reputed Alloy Steel Flange Supplier in India , we focus on quality, timely delivery, and customer satisfaction. Our experienced engineers ensure every product meets the latest industry norms and client requirements. Here’s why clients across the globe trust us:
- Decades of experience in manufacturing alloy fittings and flanges.
- Wide product range coveringSlip On, Weld Neck, Blind, Socket Weld, and Threaded Flanges
- In-house testing and inspection facilities for assured quality.
- Global export network serving the Middle East, Asia, Africa, and Europe.
- Custom manufacturing as per drawings and special material requirements.
We believe in building long-term relationships by delivering products that perform beyond expectations — both in quality and reliability.
This ensures our Stainless Steel Flanges meet the requirements of any global piping system.
Global Supplier – Stainless Steel Pipe Flange in India & Beyond
Though we are based in India, our reach is global. As a reliable steel Pipe Flanges Manufacturer & Supplier, we have served clients not just across India but also in countries like the UAE, Saudi Arabia, Australia, the USA, and more. Our logistics team ensures timely delivery and hassle-free shipping.
Get in Touch With Solitaire Fittings
Our Alloy Flanges are supplied and exported to various countries including UAE, Saudi Arabia, Kuwait, Singapore, Malaysia, South Africa, UK, and Germany. With an extensive supply network, we ensure timely delivery of Alloy Steel Pipe Flanges for both small and bulk orders.
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- Email Us for inquiries, product catalogs, and quotes.
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