Home Products Stainless Steel Flanges

Stainless Steel Flanges

Stainless Steel Flanges Manufacturer Supplier Exporter in India ASTM A182 ASME B16.5
Best Seller

Stainless Steel Flanges – Top Manufacturer, Supplier & Exporter | India’s #1 SS Flange Supplier

Product Description:
Are you in search of top-notch Stainless Steel Flanges? STAINLESS INDIA stands as one of the foremost manufacturers, stockists, and international exporters of SS 304/316/321/310 flanges in India, providing high-quality products to the oil & gas, petrochemical, marine, food processing, and engineering sectors.
Our stainless steel flanges are produced in accordance with ASTM, ASME, ANSI, EN, DIN, and API standards, guaranteeing durability, resistance to corrosion, and exceptional performance in demanding applications.

What are Stainless Steel Flanges?

Stainless Steel Flanges are forged or plate-manufactured components used to connect pipes, valves, pumps and pressure vessels in industrial piping systems. They provide a secure, leak-proof connection while allowing easy installation, inspection and maintenance. Stainless Steel Flanges are widely used in oil & gas, petrochemical, refineries, power plants, offshore platforms, marine engineering, food processing, pharmaceutical, chemical processing and water treatment industries because of their excellent corrosion resistance, high mechanical strength and long service life.

Why Stainless Steel Flanges are Preferred

Compared with carbon steel flanges, stainless steel flanges provide superior corrosion resistance, excellent weldability, better hygienic properties and longer operating life. Grades such as SS 304, SS 304L, SS 316, SS 316L, SS 321, SS 347, Duplex 2205 and Super Duplex are selected depending on pressure, temperature and corrosion requirements.

Available Stainless Steel Flange Types

  • Weld Neck Flanges (WNRF)
  • Slip-On Flanges (SORF)
  • Blind Flanges
  • Socket Weld Flanges
  • Threaded Flanges
  • Lap Joint Flanges
  • Long Weld Neck Flanges
  • Spectacle Blind Flanges
  • Orifice Flanges
  • Reducing Flanges
  • Ring Type Joint (RTJ) Flanges
  • Custom Forged Flanges

Available Materials

We manufacture Stainless Steel Flanges in ASTM A182 F304, F304L, F316, F316L, F321, F347, F904L, Duplex 2205, Super Duplex 2507 and other special grades according to customer requirements.

Manufacturing Standards

All flanges are manufactured according to internationally accepted standards including ASME B16.5, ASME B16.47 Series A & B, ASTM A182, EN 1092-1, DIN, BS 4504, MSS SP-44 and API specifications wherever applicable.

How to Select the Correct Stainless Steel Flange

  • Operating Pressure
  • Working Temperature
  • Pipe Schedule
  • Face Type (RF, FF or RTJ)
  • Pressure Class (150, 300, 600, 900, 1500, 2500)
  • Material Grade
  • Corrosion Resistance Requirement
  • Applicable International Standard

Industries We Serve

Our Stainless Steel Flanges are supplied to EPC contractors, refineries, petrochemical plants, fertilizer plants, offshore platforms, desalination plants, LNG terminals, nuclear projects, power generation plants, paper industries, sugar plants, breweries, food processing facilities, pharmaceutical companies, chemical industries, marine engineering projects and infrastructure developments across more than 70 countries.

Quality Assurance

Every Stainless Steel Flange is inspected for dimensional accuracy, material composition, surface finish and mechanical properties. Mill Test Certificates (EN 10204 3.1), Positive Material Identification (PMI), third-party inspection and complete traceability are available on request.

Why Buy Stainless Steel Flanges from Stainless India?

Stainless India is a trusted manufacturer, stockist and exporter of Stainless Steel Flanges supplying customers across India, the Middle East, Europe, Africa and Southeast Asia. We maintain ready stock in multiple grades and pressure classes, provide complete material traceability, Mill Test Certificates (EN 10204 3.1), third-party inspection, fast delivery and technical support for industrial projects.

Manufacturing Capabilities

  • Sizes from ½" to 60"
  • Pressure Classes 150 to 2500
  • Raised Face (RF)
  • Flat Face (FF)
  • Ring Type Joint (RTJ)
  • CNC Machining
  • PMI Testing
  • Hydro Testing
  • Third Party Inspection
  • Export Packaging

Related Stainless Steel Products

International Standards We Follow

ASTM A182 ASTM A240 ASME B16.5 ASME B16.47 MSS SP-44 API DIN EN 1092-1 BS 4504 ISO NACE PED

Export Markets

We regularly export Stainless Steel Flanges to UAE, Saudi Arabia, Qatar, Oman, Kuwait, Bahrain, Germany, Italy, France, United Kingdom, Netherlands, South Africa, Egypt, Singapore, Malaysia, Indonesia, Australia, New Zealand, Canada and the United States.

Product Range

Product Types Stainless Steel Flanges We Manufacture

Weld Neck Flange (WN)

Ideal for high-pressure & high-temperature pipelines.

Slip-On Flange (SO)

Easy to install and cost-effective; suitable for low-pressure applications.

Blind Flange (BL)

Used to seal pipe ends in petrochemical and oil & gas systems.

Threaded Flange (TH)

Perfect for piping systems where welding is not possible.

Socket Weld Flange (SW)

Preferred for small-bore, high-pressure pipelines.

Lap Joint Flange (LJ)

Great for systems requiring frequent dismantling.

Orifice Flanges

Used for flow measurement & instrumentation.

Material Specifications

Available Grades

Grade Family Available Specifications
Austenitic SS
SS 304 / 304L SS 316 / 316L SS 310S 321 / 347
Duplex Steel
Duplex 2205
Special Grades
SS 904L

Applications

Oil & Gas
Petrochemical Plants
Marine & Shipbuilding
Food & Dairy Processing
Power Generation
Chemical Industries
Water Treatment
Pharmaceutical Mfg

Standards & Certifications

  • ASTM A182 / A240
  • ASME B16.5
  • ASME B16.47 (Series A & B)
  • BS 4504
  • DIN / EN 1092-1
  • API 6A / API 605
Our Advantage

Why Choose STAINLESS INDIA as Your SS Flange Supplier?

Premium Material

Premium raw material sourced from approved mills.

Strict Accuracy

Strict dimensional accuracy & smooth finish.

Large Stock

Large ready stock available for urgent delivery.

Global Export

Global export with secure wooden box packaging.

Competitive Pricing

Competitive pricing for bulk orders.

Frequently Asked Questions – Stainless Steel Flanges

SS 304 and SS 316 are the most widely used due to excellent corrosion resistance.

Yes, we manufacture custom sizes, drilling patterns, and face types: FF / RF / RTJ .

Yes, we export to UAE, Saudi Arabia, Germany, UK, South Africa, Singapore, Malaysia, and 40+ countries.

Type of Stainless Steel Flanges Available

stainless steel flange manufacturer in India ss 304/316 flange supplier stainless steel flange exporter
weld neck flange manufacturer asme b16.5 flange supplier stainless steel slip-on flange
duplex steel flange exporter custom stainless steel flanges stainless steel blind flange price
best stainless steel flange manufacturer - -

Global Export Network

We export to more than 70+ countries:

USA • UK • Germany • Italy • UAE • Saudi Arabia • Qatar • Oman • Kuwait • Singapore • Malaysia • Indonesia • Australia • South Africa • Brazil • Mexico • India

All Shipments Include:
  • Packing List
  • Invoice
  • MTC 3.1 / 3.2
  • Third-Party Inspection (TUV/LR/BV) if required
  • Heat Number Traceability

Request a Quotation Today

Looking for a dependable Stainless Steel Flanges Supplier? We respond within 24 hours.