Flanges
Earth Steel (India) is a trusted manufacturer, supplier, and exporter of a wide range of industrial flanges in all ASTM-grade materials. We offer slip-on, weld neck, blind, socket weld, lap joint, and threaded flanges designed to ensure secure and leak-proof connections in piping systems. Our flanges are engineered for high strength, dimensional accuracy, and long-lasting durability, making them ideal for industries such as oil & gas, petrochemical, power generation, and more. Every product is manufactured in compliance with international standards including ANSI, ASME, DIN, and EN, ensuring consistent quality, performance, and reliability.
Stainless Steel Flanges Manufacturer in India
Table of Contents
Stainless Steel Flanges Manufacturers, Suppliers & Stockists in India – Earth Steel (India)
Flanges Specification, Grades, Size, & Materials
Top Most Selling SS Flanges Types
- Slip-On Flanges
- Weld Neck Flanges
- Blind Flanges
- Screwed/Threaded Flanges
- Socket Weld Flanges
- Lap Joint Flanges
- Long Weld Neck Flanges
- Ring Type Joint Flanges
- Spectacle Blind Flanges
Earth Steel (India) is India’s most trusted Stainless Steel Flanges Manufacturer & Supplier in India.
Additional Information
Stainless Steel Flanges Price List
SS Flanges Application & Uses
Contact Us
ASTM / ASME / AISI Flanges Dimension & Sizes
ASTM / ASME / AISI Flanges Weight Chart
Stainless Steel Flange Pressure Rating
Other Related Products
Stainless Steel Flanges, ASME SA182 SS Pipe Flange, ANSI B16.5 Stainless Steel Slip On Flange Price in India
We offer Stainless Steel Flanges in various grades such as ASTM A182 F304, F304L, F304H, F316, F316L, F316Ti, F321, F321H, F347, F347H, and F904L. These flanges are available in ANSI B16.5, B16.47, and other international standards. The composition of stainless steel, containing chromium and nickel, provides excellent corrosion resistance and high durability. The Stainless Steel Slip On Flange allows pipes to fit precisely and ensures a strong, leak-proof connection in diverse industrial applications.
Alloy Steel Blind Flanges, ASME SA 182 AS Pipe Flange, ANSI B16.5 Alloy Steel Slip On Flange Price in India
The flanges also come in B16.5, B16.47 and other standards and dimensions. The Alloy Steel Flange Material can vary according to the chemical composition. The grade 304 flanges are the most commonly used flanges and they have 18% chromium and 8% nickel in the composition. The ANSI B16.5 Alloy Steel Slip On Flange is a flange type that allows the pipes to slip onto the flange and makes the connection in a precise locations.
Flanges Come In Various Types
Slip On Flanges
Weld Neck Flanges
Blind Flanges
Screwed Threaded Flanges
Socket Weld Flanges
Lap Joint Flanges
Long Weld Neck Flanges
Ring Type Joint Flanges
Spectacle Blind Flanges
Carbon Steel Weld Neck Flanges
Carbon Steel Slip On Flanges
Carbon Steel Blind Flanges
Stainless Steel Flanges Price List
| Stainless Steel Screwed Flanges | Per Unit (INR) | SS ASTM A182 Flange (UAE Dirham) | SS Flange Material (Saudi Riyal) |
|---|---|---|---|
| Flanges SS A182 Gr F304/304L Flange WN 150 RF 304/304L SS IOS Bore Item Flange - Weld Neck - ASME Class (35 pcs) | 323 | 16.69 | 17.05 |
| SS Seamless Butt-Welded Flange / Fittings (Pipe Fittings) Grade 904L | 1,336 | 69.05 | 70.53 |
| Flanges SS A182 Gr F304/304L Flange WN 150 RF 304/304L SS IOS Bore Item Flange - Weld Neck - ASME Class (59 pcs) | 385 | 19.90 | 20.32 |
| Flange SS Gr SA182 F316 ANSI B16.5 DN 20, 300# Sch 40s, Weld Neck RF (12 pcs) | 476 | 24.60 | 25.13 |
| Flanges SS A182 Gr F304/304L Flange WN 150 RF 20B462 40/S Bore Item Flange - Type - Weld Neck (3 pcs) | 811 | 41.92 | 42.81 |
| Flange SS Gr SA182 F316 ANSI B16.5 DN25, 150# Sch 10s, Weld Neck RF (60 pcs) | 487 | 25.17 | 25.71 |
Carbon Steel Flanges Specifications
| Parameter | Details |
|---|---|
| Specifications | ASTM A105 / ASME SA105, A105N |
| Size Range | 1/2" (15 NB) to 48" (1200 NB), DN10 ~ DN5000 |
| Flange Standards | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS10, EN 1092-1, DIN, JIS, GOST |
| ANSI Pressure Class | 150, 300, 600, 900, 1500, 2500 LBS |
| DIN Pressure Rating | PN6, PN10, PN16, PN25, PN40, PN64 |
| JIS Pressure Rating | 5K, 10K, 16K, 20K, 30K, 40K, 63K |
| UNI / EN Rating | 6Bar, 10Bar, 16Bar, 25Bar, 40Bar |
| Main Types | Forged, Threaded, Screwed, Plate |
| Supporting Materials | Gasket, Ring Joint, Flange Bolts |
| Production Technique | Forged, Heat Treated & Machined |
| Flange Face Types | RF, RTJ, FF, LMF, SMF, LJF, Tongue & Groove |
| Common Flange Types | Weld Neck, Slip-On, Blind, Socket Weld, Threaded, Lap Joint, RTJ, Orifice |
| Manufacturing Size Range | 15 NB (1/2") to 200 NB (8"), Equal & Reducing |
| Testing | Spectro Analysis, Hydrostatic Test, Radiography (RT), Ultrasonic Test (UT), Magnetic Particle Test (MPT) |
| Inspection & Certificates | EN 10204 3.1 / 3.2, Raw Material Certificate, 100% Radiography, Third Party Inspection, NACE MR0103, NACE MR0175 |
| Manufacturing Equipment | Press Machine, Bending Machine, Pushing Machine, Beveling, Sand Blasting |
| Origin | India, Western Europe, Japan, USA, Korea |
| Specialized Products | RTJ Flanges, PN16 Flanges, DIN 2566, Large Diameter Flanges, Weld Neck, Slip-On, Blind, Socket Weld, Threaded, Plate & Loose Flanges |
| Additional Standards | AS2129, AWWA C207, API 6A, MSS SP44, EN1092-1, SABS1123, NFE29203, UNI2276 |
| Key Industries | Oil & Gas, Petrochemical, Nuclear Power, Heavy Oil Refineries, Bitumen Upgraders |
| Applications | Petroleum, Power Plants, Chemical Industry, Construction, Gas, Shipbuilding, Metallurgy |
| Export Markets | USA, Canada, Saudi Arabia, UAE, Oman, Spain, Singapore, Thailand, Korea, Brazil, Iran, Egypt, India |
| Special Design | As per Customer Drawing & Specifications |
Flanges Application & Uses
- Flanges used in connecting pipes, valves, and pumps for easy assembly
- Stainless Steel Flanges used in chemical and pharmaceutical industries
- Flanges used in oil & gas pipelines for high-pressure connections
- Carbon Steel Flanges used in water supply and sewage systems
- Alloy Steel Flanges used in power plants and high-temperature environments
- Duplex & Super Duplex Flanges used in marine and offshore applications
- Flanges used in food processing and beverage industries
- Blind Flanges used for pipeline maintenance and safety sealing
- Slip-on and Weld Neck Flanges for industrial equipment and piping systems
ASTM / ASME / AISI Flanges Dimension & Sizes
| FLANGE NPS | Outside Diameter | Bolt Circle (BC) | Raised Face (R) | Raised Face (RF) | Raised Face Thickness (T) | Flat Face Thickness (T2) | Bolt Hole (B) | No. of Bolt Holes |
|---|---|---|---|---|---|---|---|---|
| 1/2″ | 3.50″ | 2.38″ | 1.38″ | .063″ | .44″ | .38″ | .62″ | 4 |
| 3/4″ | 3.88″ | 2.75″ | 1.69″ | .063″ | .50″ | .44″ | .62″ | 4 |
| 1″ | 4.25″ | 3.12″ | 2.00″ | .063″ | .56″ | .50″ | .62″ | 4 |
| 1-1/4″ | 4.62″ | 3.50″ | 2.50″ | .063″ | .62″ | .56″ | .62″ | 4 |
| 1-1/2″ | 5.00″ | 3.88″ | 2.88″ | .063″ | .68″ | .62″ | .62″ | 4 |
| 2″ | 6.00″ | 4.75″ | 3.62″ | .063″ | .75″ | .69″ | .75″ | 4 |
| 2-1/2″ | 7.00″ | 5.50″ | 4.12″ | .063″ | .88″ | .82″ | .75″ | 4 |
| 3″ | 7.50″ | 6.00″ | 5.00″ | .063″ | .94″ | .88″ | .75″ | 4 |
| 3-1/2″ | 8.50″ | 7.00″ | 5.50″ | .063″ | .94″ | .88″ | .75″ | 8 |
| 4″ | 9.00″ | 7.50″ | 6.19″ | .063″ | .94″ | .88″ | .75″ | 8 |
| 5″ | 10.00″ | 8.50″ | 7.31″ | .063″ | .94″ | .88″ | .88″ | 8 |
| 6″ | 11.00″ | 9.50″ | 8.50″ | .063″ | 1.00″ | .94″ | .88″ | 8 |
| 8″ | 13.50″ | 11.75″ | 10.62″ | .063″ | 1.12″ | 1.06″ | .88″ | 8 |
| 10″ | 16.00″ | 14.25″ | 12.75″ | .063″ | 1.19″ | 1.13″ | 1.00″ | 12 |
| 12″ | 19.00″ | 17.00″ | 15.00″ | .063″ | 1.25″ | 1.19″ | 1.00″ | 12 |
| 14″ | 21.00″ | 18.75″ | 16.25″ | .063″ | 1.38″ | 1.32″ | 1.12″ | 12 |
| 16″ | 23.50″ | 21.25″ | 18.50″ | .063″ | 1.44″ | 1.38″ | 1.12″ | 16 |
| 18″ | 25.00″ | 22.75″ | 21.00″ | .063″ | 1.56″ | 1.50″ | 1.25″ | 16 |
| 20″ | 27.50″ | 25.00″ | 23.00″ | .063″ | 1.69″ | 1.63″ | 1.25″ | 20 |
| 22″ | 29.50″ | 27.25″ | 25.25″ | .063″ | 1.81″ | 1.75″ | 1.38″ | 20 |
| 24″ | 32.00″ | 29.50″ | 27.25″ | .063″ | 1.88″ | 1.82″ | 1.38″ | 20 |
Carbon Steel Flanges Weight Chart
| Standard | Class | Diameter (mm) | Bolt Circle Diameter (mm) | No. of Bolts | Bolt Size | Bolt Hole Diameter (mm) |
|---|---|---|---|---|---|---|
| AS 4087 | PN14 | 95 | 67 | 4 | M12 | 14 |
| AS 2129 Flanges | Table C | 95 | 67 | 4 | 13 | 14 |
| Table D | 95 | 67 | 4 | 13 | 14 | |
| Table E | 95 | 67 | 4 | 13 | 14 | |
| Table F | 95 | 67 | 4 | 13 | 14 | |
| Table H | 114 | 83 | 4 | 16 | 17 | |
| Table J | 114 | 83 | 4 | 16 | 17 | |
| ANSI B16.5 | ANSI 150 | 89 | 60 | 4 | 13 | 16 |
| ANSI 300 | 95 | 67 | 4 | 13 | 16 | |
| ANSI 600 | 95 | 67 | 4 | 13 | 16 | |
| ANSI 900 | 121 | 83 | 4 | 19 | 22 | |
| ANSI 1500 | 121 | 83 | 4 | 19 | 22 | |
| ISO 7005 / DIN | PN6 | 80 | 55 | 4 | M10 | 11 |
| PN10 | 95 | 65 | 4 | M12 | 14 | |
| PN16 | 95 | 65 | 4 | M12 | 14 | |
| PN20 | 90 | 60.5 | 4 | M14 | 16 | |
| PN25 | 95 | 65 | 4 | M12 | 14 | |
| PN40 | 95 | 65 | 4 | M12 | 14 |
ASTM / ASME / AISI Flanges Weight Chart
| Nominal Pipe Size | “A” (O.D.) | “B” (Thk.) | “C” (RF Dia.) | “D” (B.C.D.) | # Bolt Holes | Dia. of Bolt Holes | Approx. Weight |
|---|---|---|---|---|---|---|---|
| 1/2″ | 3-3/4 | 9/16 | 1-3/8 | 2-5/8 | 4 | 5/8 | 2 |
| 3/4″ | 4-5/8 | 5/8 | 1-11/16 | 3-1/4 | 4 | 3/4 | 3 |
| 1″ | 4-7/8 | 11/16 | 2 | 3-1/2 | 4 | 3/4 | 4 |
| 1-1/4″ | 5-1/4 | 3/4 | 2-1/2 | 3-7/8 | 4 | 3/4 | 6 |
| 1-1/2″ | 6-1/8 | 13/16 | 2-7/8 | 4-1/2 | 4 | 7/8 | 7 |
| 2″ | 6-1/2 | 7/8 | 3-5/8 | 5 | 8 | 3/4 | 8 |
| 2-1/2″ | 7-1/2 | 1 | 4-1/8 | 5-7/8 | 8 | 7/8 | 12 |
| 3″ | 8-1/4 | 1-1/8 | 5 | 6-5/8 | 8 | 7/8 | 16 |
| 3-1/2″ | 9 | 1-3/16 | 5-1/2 | 7-1/4 | 8 | 7/8 | 21 |
| 4″ | 10 | 1-1/4 | 6-3/16 | 7-7/8 | 8 | 7/8 | 28 |
| 5″ | 11 | 1-3/8 | 7-5/16 | 9-1/4 | 8 | 7/8 | 37 |
| 6″ | 12-1/2 | 1-7/16 | 8-1/2 | 10-5/8 | 12 | 7/8 | 48 |
| 8″ | 15 | 1-5/8 | 10-5/8 | 13 | 12 | 1 | 79 |
| 10″ | 17-1/2 | 1-7/8 | 12-3/4 | 15-1/4 | 16 | 1-1/8 | 122 |
| 12″ | 20-1/2 | 2 | 15 | 17-3/4 | 16 | 1-1/4 | 183 |
| 14″ | 23 | 2-1/8 | 16-1/4 | 20-1/4 | 20 | 1-1/4 | 241 |
| 16″ | 25-1/2 | 2-1/4 | 18-1/2 | 22-1/2 | 20 | 1-3/8 | 315 |
| 18″ | 28 | 2-3/8 | 21 | 24-3/4 | 24 | 1-3/8 | 414 |
| 20″ | 30-1/2 | 2-1/2 | 23 | 27 | 24 | 1-3/8 | 515 |
| 24″ | 36 | 2-3/4 | 27-1/4 | 32 | 24 | 1-5/8 | 800 |
| 1/16″ raised face included in flange thickness. | |||||||
Stainless Steel Flange Pressure Rating
| Standard | Flange Types | Pressure Class |
|---|---|---|
| ASME/ANSI B 16.36 | Welding Neck Flange, Slip-on Flange, Threaded Flange | 300, 400, 600, 900, 1500, 2500 |
| ASME/ANSI B 16.5 | Welding Neck Flange, Slip-on Flange, Blind Flange, High Hub Blind Flange, Socket Weld Flange, Lap Joint Flange, Threaded Flange, Ring Type Joint Flange | 150, 300, 400, 600, 900, 1500, 2500 |
| ASME/ANSI B 16.47 | Welding Neck Flange, Blind Flange [Series A & B] | 75, 150, 300, 400, 600, 900 |
| BS 4504 SEC 3.1 | Welding Neck Flange, Hubbed Slip-on Flange, Hubbed Threaded Flange, Lapped Pipe End Flange, Plate Flange, Loose Plate Flange, Loose Plate With Weld Neck Flange, Blank Flange | PN 2.5 TO PN 40 |
| BS 4504 [PART 1] | Welding Neck Flange, Hubbed Slip-On Hubbed Threaded, Plate Flange, Loose Plate With Weld-On Plate Collar, Blank Flange | PN 2.5 TO PN 400 |
| BS 1560 BOSS | Welding Neck Flange, Socket Welding Flange, Slip-On Flange, Blind Flange, Screwed Boss Flange, Lapped Flange | 150, 300, 400, 600, 900, 1500, 2500 |
| BS10 | Welding Neck Flange, Plate Slip-On Flange, Screwed Boss Flange, Slip-On Boss Flange, Blind Flange | TABLE D, E, F, H |
| DIN FLANGES | DIN 2527, 2566, 2573, 2576, 2641, 2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637, 2638, 2673 | PN 6 TO PN 100 |
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