ASTM / ASME / DIN Certified

Stainless Steel Flanges Manufacturers in India

Unicorn Metal Industries is a leading Stainless Steel Flanges Manufacturers in India, offering high-quality flange solutions designed for piping systems, pressure applications, and industrial assemblies. Stainless Steel Flanges are widely used across industries due to their excellent corrosion resistance, strength, and durability in demanding operating environments.

Our product range includes slip-on flanges, weld neck flanges, blind flanges, socket weld flanges, and threaded flanges manufactured in accordance with ASTM, ASME, DIN, and other international standards. These Stainless Steel Flanges are part of our comprehensive industrial flanges manufacturers range and are extensively used in oil & gas, chemical processing, power generation, and construction industries. With advanced manufacturing capabilities, we produce both standard and custom Stainless Steel Flanges tailored to meet specific project requirements. Explore our complete industrial flanges manufacturers range to find suitable solutions.

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15–600 NBSize Range

150#–2500#Pressure Rating

304 / 316Core Grades

Stainless Steel Flanges Manufacturers in India

Overview

Stainless Steel Flanges Overview

Stainless Steel Flanges are essential piping components used to connect pipes, valves, pumps, and other equipment in industrial systems. Known for their high strength and corrosion resistance, Stainless Steel Flanges ensure leak-proof and secure connections in critical applications.

One of the key advantages of Stainless Steel Flanges is their ability to perform under high pressure and temperature conditions while maintaining structural integrity. These Stainless Steel Flanges are available in various pressure ratings and configurations, making them suitable for a wide range of industries. At Unicorn Metal Industries, Stainless Steel Flanges are manufactured using precision forging and machining processes to ensure dimensional accuracy and consistent quality, similar to high-performance solutions such as Duplex Steel flanges and Inconel flanges used in demanding industrial environments.

Datasheet

Stainless Steel Flanges Specifications

Full mill-standard specifications, material grades, chemical composition, and mechanical properties for our Stainless Steel Flanges range.

Stainless Steel Flanges — Specifications

SHEET 01

Specification	Details
Product	Stainless Steel Flanges
Size Range	15 NB to 600 NB
Pressure Rating	150# to 2500#
Standards	ASTM / ASME / DIN
Facing Types	RF, FF, RTJ
Finish	Machined / Polished

Stainless Steel Flanges Material Grades

SHEET 02

Grade	Standard	Application
304 / 304L	ASTM A182	General piping
316 / 316L	ASTM A182	Corrosive environments
321	ASTM A182	High temperature
347	ASTM A182	Stabilized applications

Chemical Composition

SHEET 03

Element	Range
Chromium	16–18%
Nickel	8–14%
Carbon	≤0.08%
Molybdenum	2–3% (for 316)

Mechanical Properties

SHEET 04

Property	Value	Unit
Tensile Strength	485–620	MPa
Yield Strength	170–300	MPa
Hardness	150–200	HB
Elongation	30–40	%

Product Types

Types of Stainless Steel Flanges We Manufacture

We manufacture a comprehensive range of Stainless Steel Flanges designed for strength, leak-proof connections, and long-term durability in industrial piping systems. These Stainless Steel Flanges are widely used across various industries requiring high performance and reliability.

TYPE / 01

Slip-On Stainless Steel Flanges

Designed for easy installation, these flanges slide over the pipe and are ideal for low to moderate pressure applications where alignment and cost-efficiency are important.

TYPE / 02

Weld Neck Stainless Steel Flanges

Engineered for high-pressure and high-temperature applications, these flanges provide excellent strength due to their long tapered hub and strong welded connection.

TYPE / 03

Blind Stainless Steel Flanges

Used to seal the end of piping systems, these flanges help in pressure testing and system isolation while ensuring leak-proof closure.

TYPE / 04

Socket Weld Stainless Steel Flanges

Suitable for small-diameter, high-pressure pipelines, these flanges offer strong connections and improved flow efficiency.

TYPE / 05

Threaded Stainless Steel Flanges

Designed for systems where welding is not possible, these flanges provide reliable connections through threaded joints.

TYPE / 06

Lap Joint Stainless Steel Flanges

Ideal for systems requiring frequent dismantling, these flanges offer flexibility and ease of alignment with stub ends.

TYPE / 07

Plate Stainless Steel Flanges

Commonly used in general industrial applications, these flanges provide a simple and cost-effective solution for low-pressure systems.

TYPE / 08

Custom Stainless Steel Flanges

Manufactured based on engineering drawings and specifications, these flanges are designed to meet unique project requirements and specialized applications.

Where They're Used

Applications of Stainless Steel Flanges

Stainless Steel Flanges are widely used in industries where reliable piping connections are essential. In oil & gas and chemical processing industries, Stainless Steel Flanges are used in pipelines, pressure vessels, and processing equipment.

In power generation and marine industries, Stainless Steel Flanges provide reliable performance under high temperature and corrosive conditions. They are also widely used in construction, water treatment, and industrial piping systems.

Our Commitment

Why Choose Our Stainless Steel Flanges

Selecting the right manufacturer is essential when sourcing Stainless Steel Flanges for critical applications. Unicorn Metal Industries provides Stainless Steel Flanges that meet strict engineering and quality standards.

Manufacturing focused on precision, traceability, and consistent quality
Custom Stainless Steel Flanges based on drawings and specifications
Reliable performance and timely delivery on every order

Quality Assurance

At Unicorn Metal Industries, strict quality control procedures are followed to ensure the reliability of Stainless Steel Flanges.

Raw Material Verification

The process begins with raw material verification to confirm grade and composition before production starts.

Dimensional Inspection

Followed by dimensional inspection and precision machining checks during production.

Mechanical Testing

Mechanical testing is conducted to confirm strength and performance against specification.

Final Inspection

Each flange undergoes final inspection before dispatch, ensuring compliance with international standards and consistent quality for industrial applications.

FAQ

Frequently Asked Questions

What are Stainless Steel Flanges used for?

Stainless Steel Flanges are used to connect pipes, valves, pumps, and other equipment in piping systems. They help create secure and leak-proof joints, making them essential in industries such as oil & gas, chemical processing, power generation, and water treatment.

Which grade is best for Stainless Steel Flanges?

The most commonly used grades are 304/304L and 316/316L. Grade 304 is suitable for general applications, while 316 is preferred in corrosive environments due to its higher resistance to chemicals and chlorides.

What are the different types of Stainless Steel Flanges?

Common types include slip-on, weld neck, blind, threaded, socket weld, and lap joint Stainless Steel Flanges. Each type is designed for specific applications based on pressure, temperature, and installation requirements.

Are Stainless Steel Flanges corrosion resistant?

Yes, Stainless Steel Flanges offer excellent corrosion resistance, especially in environments exposed to moisture, chemicals, and marine conditions. Grades like 316 provide enhanced resistance to aggressive media.

What is the difference between slip-on and weld neck flanges?

Slip-on Stainless Steel Flanges are easier to install and used in low-pressure systems, while weld neck flanges are designed for high-pressure and high-temperature applications due to their strong welded connection.