Stainless Steel 304 Weld Neck Flange Manufacturers In India

When it comes to robust and durable piping solutions, the choice of flange plays a crucial role in ensuring the safety and efficiency of your operations. One of the most sought-after options in the industry is the Stainless Steel 304 Weld Neck Flange. At Sachiya Steel International Private Limited, we are proud to be India’s leading manufacturer of top-quality Stainless Steel 304 Weld Neck WNRF Flanges. Our products are known for their superior performance, durability, and adherence to the highest international standards, making them an ideal choice for a wide range of applications.

Stainless Steel 304 Weld Neck Flange Specifications 

Specification	Details
Material	Stainless Steel 304
Flange Type	Weld Neck (WNRF)
Standards	ASTM A182, ASME SA182
Pressure Class	150#, 300#, 600#, 900#, 1500#, 2500#
Size Range	1/2″ to 48″
Face Type	Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ)
Application	Oil & Gas, Petrochemical, Marine, Power Generation
Manufacturing Process	Forged
Surface Finish	Plain, Serrated, Smooth

Understanding the Importance of Stainless Steel 304 Weld Neck Flange

The Stainless Steel 304 Weld Neck Flange is designed with a long, tapered hub that provides additional reinforcement, making it suitable for high-pressure environments. The term “Weld Neck” refers to the flange’s design, where it is welded directly to the pipe, providing a stronger and more durable connection. This is especially important in applications where pressure and temperature fluctuations are common, as it minimizes the risk of leaks and enhances the overall safety of the system.

Stainless Steel 304 is one of the most versatile and widely used grades of stainless steel, known for its excellent corrosion resistance, strength, and ability to withstand a variety of environmental conditions. This makes the Stainless Steel 304 Weld Neck WNRF Flange an ideal choice for a broad range of industries.

Key Features of Stainless Steel 304 Weld Neck WNRF Flange

1. Superior Corrosion Resistance: One of the primary advantages of using Stainless Steel 304 is its outstanding resistance to corrosion. It can withstand exposure to harsh chemicals, acids, and saline environments, making it ideal for use in industries like oil and gas, petrochemical, and marine.
2. High Strength and Durability: The unique design of the Weld Neck Flange provides enhanced strength and durability. The long neck serves as a reinforcement that distributes stress evenly from the flange to the pipe, reducing the risk of bending or warping under pressure.
3. Perfect for High-Pressure Applications: The Stainless Steel 304 Weld Neck WNRF Flange is specifically designed to withstand high-pressure and high-temperature environments. This makes it an excellent choice for applications where safety and reliability are paramount.
4. Ease of Fabrication and Welding: Stainless Steel 304 is known for its excellent weldability and formability. The Weld Neck Flange is easy to weld, ensuring a secure, leak-proof connection that enhances the integrity of the piping system.

Applications of Stainless Steel 304 Weld Neck WNRF Flange

The versatility and reliability of the Stainless Steel 304 Weld Neck WNRF Flange make it suitable for a wide range of industrial applications. Here are some detailed uses across various sectors:

• Oil and Gas Industry: In the oil and gas sector, pipelines must withstand extreme pressures, temperatures, and corrosive environments. The Stainless Steel 304 Weld Neck WNRF Flange is extensively used in transporting crude oil, natural gas, and refined petroleum products. Its corrosion resistance ensures longevity, while its strength supports high-pressure operations, making it a vital component in offshore platforms, refineries, and storage facilities.
• Chemical and Petrochemical Plants: In chemical processing plants, where pipes often carry highly corrosive substances, the Stainless Steel 304 Weld Neck Flange provides a reliable solution. It offers excellent resistance to acids and other chemicals, ensuring a longer lifespan and reducing the risk of contamination. The flange’s ability to withstand both high and low temperatures makes it ideal for various chemical processing applications, such as storage tanks, reactors, and distillation columns.
• Power Generation: Power plants, whether nuclear, thermal, or hydro, require components that can handle extreme conditions. The Weld Neck Flange is used in connecting pipes, turbines, boilers, and heat exchangers. Its robust construction ensures it can endure high temperatures and pressures, maintaining system integrity and preventing leaks that could disrupt power generation.
• Marine Applications: In marine environments, materials are constantly exposed to salty water, which can cause rapid corrosion. Stainless Steel 304 Weld Neck WNRF Flanges are an excellent choice for shipbuilding, repair, and offshore drilling applications. Their resistance to rust and corrosion ensures the safety and longevity of piping systems in these harsh conditions.
• Pharmaceutical Industry: In the pharmaceutical industry, maintaining cleanliness and avoiding contamination is crucial. Stainless Steel 304 is easy to clean and sterilize, making it suitable for piping systems that handle sensitive fluids. The Weld Neck Flange ensures leak-proof connections, reducing the risk of leaks and contamination.

Chemical Composition of Stainless Steel 304 Weld Neck Flange

Element	Content (%)
Carbon (C)	0.08 max
Manganese (Mn)	2.00 max
Silicon (Si)	0.75 max
Phosphorus (P)	0.045 max
Sulfur (S)	0.030 max
Chromium (Cr)	18.0 – 20.0
Nickel (Ni)	8.0 – 10.5
Nitrogen (N)	0.10 max

Mechanical Properties of Stainless Steel 304 Weld Neck Flange

Property	Value
Tensile Strength	515 MPa (min)
Yield Strength	205 MPa (min)
Elongation	40% (in 50 mm)
Hardness (Brinell)	201 max
Modulus of Elasticity	193 GPa

Dimensions of Stainless Steel 304 Weld Neck Flange

Nominal Pipe Size	Flange Diameter (mm)	Flange Thickness (mm)	Bolt Circle Diameter (mm)	Number of Bolts	Bolt Size
1/2″	90	11.2	60	4	M12
1″	115	14.2	79	4	M12
2″	150	17.4	120	4	M16
4″	230	23.9	190	8	M16
8″	345	27.7	298	8	M20
12″	485	30.2	394	12	M22

Countries Where We Export Stainless Steel 304 Weld Neck Flange

Region	Countries
North America	USA, Canada, Mexico
Europe	Germany, UK, France, Italy, Spain
Asia	India, China, Japan, South Korea, UAE
Africa	South Africa, Egypt, Nigeria
South America	Brazil, Argentina, Chile
Australia & Oceania	Australia, New Zealand

Why Choose Sachiya Steel International for Stainless Steel 304 Weld Neck Flanges?

At Sachiya Steel International Private Limited, we are dedicated to providing our customers with the highest quality Stainless Steel 304 Weld Neck Flanges. We are committed to excellence in manufacturing and adhere to stringent quality control measures to ensure that every product meets international standards. Our flanges are competitively priced, available in various sizes and pressure ratings, and tailored to suit the unique needs of our clients. We also offer fast and reliable delivery worldwide, ensuring that your projects remain on schedule.

Choosing the right flange is critical for any industrial application involving piping systems. The Stainless Steel 304 Weld Neck Flange from Sachiya Steel International Private Limited offers the perfect blend of strength, durability, and corrosion resistance. Whether you are in the oil and gas sector, chemical processing, power generation, or marine industry, our high-quality flanges are designed to meet your specific requirements and provide a long-lasting solution. Contact us today to learn more about our products and how we can meet your industrial needs.