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What is a Stainless Steel Blind Flange?
A Blind Flange is a solid, circular plate used to seal the end of a pipe, valve, or pressure vessel. Unlike other flanges, it has no bore (opening), effectively blocking the flow of fluids or gases in a pipeline.
Made from high-grade stainless steel such as SS 304, SS 316, SS 321, SS 347, SS 310, and SS 904L, blind flanges provide high strength, corrosion resistance, and leak-proof sealing for high-pressure and high-temperature applications.
Why Choose Stainless Steel Blind Flanges?
High-Pressure Resistance
Designed to withstand extreme pressure, making them ideal for industrial pipelines.
Superior Corrosion Resistance
Manufactured from stainless steel, these flanges resist rust, oxidation, and chemical corrosion.
Leak-Proof Sealing
Provides a secure closure, preventing leaks in pipelines carrying oil, gas, chemicals, and water.
Versatile Applications
Used in oil & gas, petrochemical, power plants, and water treatment facilities.
Available in Multiple Pressure Ratings
Blind flanges come in class 150#, 300#, 600#, 900#, 1500#, and 2500#, ensuring suitability for various high-pressure systems.
Stainless Steel Blind Flanges Manufacturer in India
As a trusted SS Blind Flanges Manufacturer in India, we provide:
Premium quality stainless steel blind flanges in different grades & sizes.
Precision machining for accurate sealing.
Third-party quality testing for high reliability.
Bulk supply & global export with timely delivery.
Applications of Stainless Steel Blind Flanges
Oil & Gas Industry – Used to close off pipelines during maintenance.
Chemical Processing Plants – Resists corrosion from acids and aggressive chemicals.
Power Plants – Ensures safe isolation of steam and water pipelines.
Water & Wastewater Treatment – Blocks unused pipe sections to prevent contamination.
Petrochemical & Refining – Ideal for high-temperature and high-pressure applications.
Key Features of Stainless Steel Blind Flanges
Completely Blocks Fluid/Gas Flow – Ideal for shutdowns and pressure testing.
High-Temperature & Corrosion Resistant – Withstands extreme conditions.
Suitable for Various Pipe Systems – Works with stainless steel, carbon steel, and alloy steel pipes.
Available in Different Sizes & Pressure Ratings – Ranging from ½” to 60” and up to 2500# pressure class.
Specifications of Stainless Steel Blind Flanges
Specification | Details |
Material Grade | Stainless Steel 304, 316, 321, 347, 310, 904L |
Standard | ASTM A182 / ASME SA182 |
Size Range | ½” to 60” (DN15 to DN1500) |
Pressure Ratings | 150#, 300#, 600#, 900#, 1500#, 2500# |
Face Type | RF (Raised Face), FF (Flat Face), RTJ (Ring Type Joint) |
Connection Type | Bolted |
Temperature Resistance | Suitable for high-temperature applications |
Corrosion Resistance | High resistance to rust, pitting, and chemical exposure |
Chemical Composition of Stainless Steel Blind Flanges
Element | Composition (%) |
Carbon (C) | 0.08 max (varies by grade) |
Manganese (Mn) | 2.00 max |
Phosphorus (P) | 0.045 max |
Sulfur (S) | 0.030 max |
Silicon (Si) | 1.00 max |
Chromium (Cr) | 16.0 – 21.0 |
Nickel (Ni) | 8.0 – 28.0 |
Molybdenum (Mo) | 2.00 – 5.00 (varies by grade) |
Copper (Cu) | 1.0 – 2.0 (in 904L) |
Mechanical Properties of Stainless Steel Blind Flanges
Property | Value |
Tensile Strength | 485 – 590 MPa (varies by grade) |
Yield Strength | 170 – 300 MPa |
Elongation | 30 – 40% |
Hardness (Brinell) | 217 max |
Hardness (Rockwell B) | 95 max |
Countries We Export Stainless Steel Blind Flanges To Global
Continent | Countries |
Asia | India, China, Japan, South Korea, UAE, Saudi Arabia, Qatar, Oman, Kuwait, Malaysia, Singapore, Indonesia, Thailand, Vietnam, Philippines |
Europe | Germany, UK, France, Italy, Spain, Netherlands, Belgium, Poland, Russia, Sweden, Switzerland, Norway |
North America | USA, Canada, Mexico |
South America | Brazil, Argentina, Chile, Colombia, Peru |
Africa | South Africa, Egypt, Nigeria, Kenya, Algeria, Morocco |
Australia & Oceania | Australia, New Zealand |
Major Indian States for Stainless Steel Blind Flanges Supply
Region | Indian States |
North India | Delhi, Uttar Pradesh, Haryana, Punjab, Rajasthan, Uttarakhand, Himachal Pradesh, Jammu & Kashmir |
South India | Tamil Nadu, Karnataka, Kerala, Andhra Pradesh, Telangana |
West India | Maharashtra, Gujarat, Goa |
East India | West Bengal, Odisha, Bihar, Jharkhand |
Central India | Madhya Pradesh, Chhattisgarh |
Northeast India | Assam, Arunachal Pradesh, Nagaland, Manipur, Meghalaya, Mizoram, Tripura, Sikkim |
Major Indian Cities for Stainless Steel Blind 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 |
Punjab | Ludhiana, Amritsar, Jalandhar, Patiala |
Madhya Pradesh | Indore, Bhopal, Jabalpur, Gwalior |
Odisha | Bhubaneswar, Cuttack, Rourkela |
Kerala | Kochi, Thiruvananthapuram, Kozhikode |
Chhattisgarh | Raipur, Bilaspur, Bhilai |
Jharkhand | Ranchi, Jamshedpur, Dhanbad |
Buy High-Quality Stainless Steel Blind Flanges in India
Looking for top-quality SS Blind Flanges? We offer a wide range of blind flanges with certified quality, corrosion resistance, and durability. Contact us today for competitive pricing and bulk orders!
1️. What is the purpose of a Stainless Steel Blind Flange?
A blind flange is used to close off the end of a pipe, valve, or pressure vessel, preventing fluid or gas flow. It is commonly used for pipeline isolation and pressure testing.
2️. Which industries commonly use SS Blind Flanges?
Industries such as oil & gas, petrochemical, power plants, water treatment, and chemical processing frequently use stainless steel blind flanges to block off pipelines.
3️. How do I choose the right Stainless Steel Grade for Blind Flanges?
- SS 304 – Best for general industrial applications.
- SS 316 – Excellent for marine and chemical environments.
- SS 321 & SS 347 – Ideal for high-temperature resistance.
- SS 310 & SS 904L – Best for extreme temperature and corrosion resistance.
4️.What pressure ratings are available for SS Blind Flanges?
Blind flanges are available in 150#, 300#, 600#, 900#, 1500#, and 2500# pressure classes, making them suitable for various pressure applications.
5️.Can Stainless Steel Blind Flanges be reused?
Yes, blind flanges can be reused, especially in temporary or maintenance applications where pipeline sections need to be opened and closed frequently.
6️.Where can I buy Stainless Steel Blind Flanges in India?
As a leading SS Blind Flanges Manufacturer in India, we provide high-quality blind flanges with certifications, competitive prices, and on-time global delivery. Contact us today!