022 66393751
Stainless Steel Expander Flanges – Manufacturer & Supplier in India
What is a Stainless Steel Expander Flange?
A Stainless Steel Expander Flange is a unique type of
flange designed to connect pipelines with different diameters by gradually
increasing the pipe size. This helps in improving flow dynamics and
reducing turbulence. Expander flanges serve as an alternative to reducers
and weld neck flanges, making them ideal for high-pressure and
high-temperature applications.
Key Features of Stainless Steel Expander Flanges
Gradual Size Expansion – Connects small pipes to larger ones smoothly.
Strong & Leak-Proof – Ideal for high-pressure environments.
Corrosion & Heat Resistance – Works well in extreme conditions.
Available in Multiple Pressure Ratings – Class 150, 300, 600, 900, 1500, 2500.
Compatible with Various Pipe Materials – Stainless steel, carbon steel, and alloy steel.
Types of Stainless Steel Expander Flanges
- Weld Neck Expander Flange
Provides high strength and is suitable for high-pressure applications.
- Slip-On Expander Flange
Allows easy installation and is preferred for low-pressure pipelines.
- Threaded Expander Flange
Suitable for non-welded connections, making it easy to install and remove.
Stainless Steel Expander Flange Manufacturer in India
We are a leading Stainless Steel Expander Flange manufacturer in India, offering:
Flanges in ASTM, ASME, ANSI, DIN, and EN standards.
Size range from ½” to 48” (DN15 to DN1200).
Multiple pressure ratings from Class 150 to Class 2500.
Custom & bulk orders available at competitive prices.
Specifications of Stainless Steel Expander Flanges
Specification | Details |
Material Grade | Stainless Steel 304, 304L, 316, 316L, 321, 347, 904L |
Standard | ASTM A182 / ASME SA182 |
Size Range | ½” to 48” (DN15 to DN1200) |
Pressure Ratings | 150#, 300#, 600#, 900#, 1500#, 2500# |
Face Type | RF (Raised Face), FF (Flat Face), RTJ (Ring Type Joint) |
Connection Type | Welded, Threaded, Slip-On |
Application | Oil & Gas, Chemical, Petrochemical, Power Generation, HVAC |
Chemical Composition of Stainless Steel Expander Flanges
Element | Composition (%) |
Carbon (C) | 0.03 max |
Manganese (Mn) | 2.00 max |
Phosphorus (P) | 0.045 max |
Sulfur (S) | 0.030 max |
Silicon (Si) | 1.00 max |
Chromium (Cr) | 16.0 – 18.0 |
Nickel (Ni) | 10.0 – 14.0 |
Molybdenum (Mo) | 2.00 – 3.00 |
Mechanical Properties of Stainless Steel Expander Flanges
Property | Value |
Tensile Strength | 485 MPa (min) |
Yield Strength | 170 MPa (min) |
Elongation | 40% (min) |
Hardness (Brinell) | 217 max |
Hardness (Rockwell B) | 95 max |
Common Applications of Stainless Steel Expander Flanges
Oil & Gas Pipelines – Facilitates gradual size expansion in fluid transport.
Chemical Processing Plants – Ensures corrosion resistance and smooth fluid flow.
Power Plants & Energy Sector – Handles high-pressure steam and fluids.
HVAC & Plumbing Systems – Used in air conditioning and ventilation pipelines.
Marine & Offshore Engineering – Resistant to saltwater and harsh environments.
Countries & Indian States We Supply Stainless Steel Expander Flanges To Global Export Destinations
Region | Countries |
Middle East | UAE, Saudi Arabia, Qatar, Oman, Kuwait, Bahrain |
Asia | Japan, South Korea, Singapore, Malaysia, Thailand, Vietnam |
North America | USA, Canada, Mexico |
Europe | Germany, UK, France, Italy, Spain, Russia |
South America | Brazil, Argentina, Chile, Colombia, Peru |
Africa | South Africa, Egypt, Nigeria, Kenya, Algeria |
Australia & Oceania | Australia, New Zealand |
Major Indian Cities & States for Stainless Steel Expander Flanges Supply
State | Major Cities |
Maharashtra | Mumbai, Pune, Nagpur, Nashik, Aurangabad |
Gujarat | Ahmedabad, Surat, Vadodara, Rajkot, Bhavnagar |
Tamil Nadu | Chennai, Coimbatore, Madurai, Tiruchirappalli |
Karnataka | Bengaluru, Mangalore, Mysuru, Hubli-Dharwad |
Delhi NCR | New Delhi, Noida, Gurugram, Faridabad, Ghaziabad |
West Bengal | Kolkata, Howrah, Durgapur, Asansol, Siliguri |
Uttar Pradesh | Kanpur, Lucknow, Agra, Varanasi, Meerut |
Telangana | Hyderabad, Warangal, Karimnagar, Nizamabad |
Andhra Pradesh | Visakhapatnam, Vijayawada, Guntur, Tirupati |
Rajasthan | Jaipur, Jodhpur, Udaipur, Kota, Ajmer |
Buy High-Quality Stainless Steel Expander Flanges in India
Looking for top-quality Stainless Steel Expander Flanges? Contact us today for bulk orders, competitive prices, and customized solutions!
1. What is the function of a Stainless Steel Expander Flange?
A Stainless Steel Expander Flange is used to connect pipes of different diameters, ensuring a smooth transition in fluid or gas flow while minimizing pressure loss.
2. What are the benefits of using Expander Flanges?
Ensures smooth flow transition between different pipe sizes.
Provides high strength & durability in high-pressure applications.
Reduces the need for separate reducers & weld neck flanges.
3. Which industries use Stainless Steel Expander Flanges?
These flanges are widely used in oil & gas, chemical processing, HVAC, power plants, and marine industries.
4. What pressure ratings are available for Expander Flanges?
They are available in Class 150, 300, 600, 900, 1500, and 2500 pressure ratings.
5. How do I choose the right Expander Flange for my application?
Consider pipe size, pressure rating, material grade, and application requirements before selecting a flange.