| Flanges Types | Slip On, Weld Neck, Long Weld Neck, Threaded, Blind, Companion, Lap Joint |
|---|---|
| Class | 150 Lbs, 300 Lbs, 600 Lbs, 900 Lbs, 1500 Lbs, 2500 Lbs Asa 150, Asa 300, Pn 6, 10, 16, 25, 40, 64, 100, 160 |
| Size | 1/2″ (15 Nb), 48″ (1200nb) Dn10~dn5000 |
| Type | Raised Face (rf), Flat Face (ff), Ring Type Joint (rtj), Lap Joint Face (ljf), Large Male Female (lmf), Small Male Female (smf), Large Tongue & Groove, Small Tongue, Groove |
Stainless Steel Flanges Manufacturer in India used in chemical, petrochemical, oil gas, and industrial pipeline systems
Sagar Steel Corporation is a reputed Stainless Steel Flanges Supplier in India that provides a wide variety of flanges produced according to a variety of piping and pressure-system needs in industry. Our stainless steel flanges are manufactured in different sizes, pressure classes and facing types to assist in making reliable connections in piping systems that are deployed in oil and gas, petrochemical, chemical processing, marine, power generation, and heavy engineering industries.
We are a trusted supplier on a global B2B platform and we therefore guarantee that all the flanges of stainless steel are standard in line with accepted international standards like ASTM, ASME, ANSI, DIN, and EN. These flanges are prized due to their high corrosiveness, strength, dimensional precision and service life. They can be welded, bolted and assembled in both high-pressure and high-temperature systems, offering secure and leak-free joints in critical flow systems.
Stainless Steel Flanges – Material & Grade Table
| Material | Grade / Specification | UNS No. | Key Properties | Applicable Standards | Typical Applications |
|---|---|---|---|---|---|
| Stainless Steel | SS 304 / 304L | S30400 / S30403 | Corrosion resistance, good weldability | ASTM A182 / ASME B16.5 | Chemical, food processing, water pipelines |
| Stainless Steel | SS 316 / 316L | S31600 / S31603 | Superior corrosion resistance, high strength | ASTM A182 / ASME B16.5 | Marine, chemical, petrochemical pipelines |
| Stainless Steel | SS 321 | S32100 | Heat stabilized, good corrosion resistance | ASTM A182 / ASME B16.5 | High-temperature applications |
| Stainless Steel | SS 347 | S34700 | Excellent oxidation resistance | ASTM A182 / ASME B16.5 | Boilers, heat exchangers |
| Duplex Stainless Steel | Duplex 2205 | S32205 | High strength, excellent corrosion resistance | ASTM A182 / ASME B16.5 | Industrial, chemical, offshore pipelines |
Stainless Steel Flanges – Sizes & Availability Table
| Flange Type | Nominal Size (NPS) | Pressure Rating (PN / Class) | Minimum Order Quantity | Available Cities |
|---|---|---|---|---|
| Slip-On Flange | ½" – 24" | PN6 – PN40 / Class 150–300 | 200 Pcs | Mumbai, Delhi, Chennai |
| Weld Neck Flange | ½" – 36" | PN6 – PN40 / Class 150–300 | 200 Pcs | Pune, Ahmedabad, Hyderabad |
| Blind Flange | ½" – 36" | PN6 – PN40 / Class 150–300 | 200 Pcs | Kolkata, Bangalore, Jaipur |
| Socket Weld Flange | ½" – 12" | PN6 – PN40 / Class 150–300 | 200 Pcs | Surat, Coimbatore, Lucknow |
| Threaded Flange | ½" – 12" | PN6 – PN40 / Class 150–300 | 200 Pcs | Mumbai, Chennai, Pune |
Key Features of Stainless Steel Flanges
- Good corrosion, oxidation and chemical resistance.
- Good pressure and structural use mechanical strength.
- Proper dimensions and finish of the surface to ensure sealing.
- Applicable under high temperature, high pressure service environments.
- Extended service and minimized service needs.
All these features contribute to the reliability of stainless steel flanges as a safe and effective fluid and gas handling system.
Along with the regular stainless steel flanges, we also offer high-performance types such as Super Duplex Flanges, Alloy Steel Flanges and Duplex Flanges to address special industrial needs. Such materials have been extensively chosen on the basis of their increased strength, better resistance to corrosion and durability in high temperature, pressure and under offshore conditions.
Type of Sub-products

Ss Weld Neck Flange Ss Weld Neck Flange
Built with a tapered hub, SS weld neck flanges are ideal for high stress applications. They offer superior fatigue resistance and are commonly used in pressure vessels and heat exchangers.

Ss Slip On Flange Ss Slip On Flange
These flanges are easy to align and weld, offering cost effective connections for low pressure systems. Widely used in water supply, HVAC, and structural pipelines.
