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What is a Stainless Steel Threaded Flange?
A Threaded Flange (Screwed Flange) is a type of pipe flange with internal threads, allowing pipes to be connected without welding. These flanges are ideal for low-pressure and non-critical applications where welding is impractical or not allowed.
Made from high-quality stainless steel such as SS 304, SS 316, SS 321, SS 347, SS 310, and SS 904L, threaded flanges provide excellent corrosion resistance, durability, and leak-proof connections.
Why Choose Stainless Steel Threaded Flanges?
No Welding Required
Threaded flanges are perfect for highly flammable or explosive environments, eliminating welding risks.
High Corrosion Resistance
Made from premium stainless steel, they resist rust, oxidation, and chemical corrosion.
Easy Installation & Maintenance
Threaded design allows for quick installation and removal, making them ideal for repair and maintenance.
Suitable for Low-Pressure Systems
Perfect for low-pressure applications, such as water supply, fire protection, and oil & gas pipelines.
Available in Various Pressure Ratings
Threaded flanges are available in class 150#, 300#, 600#, 900#, 1500#, and 2500# to meet different application needs.
Stainless Steel Threaded Flanges Manufacturer in India
As a trusted SS Threaded Flanges Manufacturer in India, we offer:
High-quality stainless steel threaded flanges in multiple grades & sizes.
Precision machining for perfect thread alignment.
Strict quality checks & third-party testing for reliability.
Bulk supply & global export with on-time delivery.
Applications of Stainless Steel Threaded Flanges
Threaded flanges are used in industries where welding is restricted or not feasible, including:
Oil & Gas Industry – Used in pipelines carrying flammable substances.
Chemical Processing Plants – Resists corrosion from harsh chemicals.
Fire Protection Systems – Ensures leak-free water supply in fire suppression systems.
Water & Wastewater Treatment – Ideal for non-welded pipe connections.
Power Generation – Used in steam and cooling water pipelines.
Key Features of Stainless Steel Threaded Flanges
Easy Installation & Removal – Ideal for temporary or quick repairs.
Leak-Proof Threaded Connection – Ensures secure & reliable pipe joints.
High-Temperature & Corrosion Resistant – Perfect for harsh environments.
Compatible with Different Pipe Materials – Works with stainless steel, carbon steel, and alloy steel pipes.
Available in Multiple Sizes & Pressure Ratings – Ranging from ½” to 24” and up to 2500# pressure class.
Specifications of Stainless Steel Threaded Flanges
Specification | Details |
Material Grade | Stainless Steel 304, 316, 321, 347, 310, 904L |
Standard | ASTM A182 / ASME SA182 |
Size Range | ½” to 24” (DN15 to DN600) |
Pressure Ratings | 150#, 300#, 600#, 900#, 1500#, 2500# |
Face Type | RF (Raised Face), FF (Flat Face), RTJ (Ring Type Joint) |
Thread Type | NPT, BSPT, BSPP |
Connection Type | Threaded |
Temperature Resistance | Suitable for high-temperature applications |
Corrosion Resistance | High resistance to rust, pitting, and chemical exposure |
Chemical Composition of Stainless Steel Threaded 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 Threaded 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 |
Buy High-Quality Stainless Steel Threaded Flanges in India
Looking for top-quality SS Threaded Flanges? We offer a wide range of threaded flanges with certified quality, corrosion resistance, and durability. Contact us today for competitive pricing and bulk orders!
1.What is the main advantage of Stainless Steel Threaded Flanges?
Threaded flanges eliminate the need for welding, making them perfect for flammable or hazardous environments. They also allow for easy installation and removal.
2.Which industries commonly use SS Threaded Flanges?
Industries such as oil & gas, chemical processing, fire protection, power generation, and water treatment frequently use stainless steel threaded flanges.
3.How do I choose the right Stainless Steel Grade for Threaded Flanges?
- SS 304 – General-purpose applications with moderate corrosion resistance.
- SS 316 – Enhanced corrosion resistance, ideal for marine and chemical industries.
- SS 321 & SS 347 – Best for high-temperature applications.
- SS 310 & SS 904L – Superior resistance to extreme temperatures and acids.
4.What pressure ratings are available for SS Threaded Flanges?
Threaded flanges are available in 150#, 300#, 600#, 900#, 1500#, and 2500# pressure classes, making them suitable for various pressure requirements.
5.Can Stainless Steel Threaded Flanges be used in high-pressure applications?
Threaded flanges are generally used for low to medium-pressure applications. For high-pressure systems, weld neck or socket weld flanges are recommended.
6.Where can I buy Stainless Steel Threaded Flanges in India?
As a leading SS Threaded Flanges Manufacturer in India, we provide high-quality threaded flanges at competitive prices with on-time global delivery. Contact us today!