Siddhagiri Metals and Tubes, an ISO Certified supplier, exporter and manufacturer of Stainless Steel 304 and 304L Flnages. We have a huge inventory of ASTM A182 F304 and ASTM A182 F304L Flanges.
Other Names: ASTM A182 F304, ASTM F, Stainless Steel Flanges, 304/304L Pipe Flanges, Stainless Steel Alloy Flanges
Material: 304/304L Alloy
Brand: Siddhagiri Metals and Tubes
Manufacturer: Siddhagiri Metals and Tubes
ASTM A182 F304 • 304 Pipe Flange · 304L Pipe Flange • Stainless Steel Flanges • 304 Flange Supplier · 304L Flange Supplier
Stainless Steel 304/304L Flange supplied by Siddhagiri Metals and Tubes are of best quality and highly corrosion-resistant. Our ASTM A182 F304 Flange inventory is available in random lengths or cut to specific lengths to meet your exact requirements. Over the years, we have gained unique experience with pipes for different applications. We control the manufacturing process from raw material to finished product, with a constant focus on quality to meet demanding specifications.
A flange joint is a connection of pipes, where the connecting pieces have flanges by which the parts are bolted together. The principle of a flange is to apply a mechanical force by using bolts to preload the gasket until contact stress between flanges and gasket is sufficient to maintain a seal. Connection to the pipe is by welding or threading. To allow easy functionality and inter-changeability, these ASTM A182 Flanges are designed to have standardised dimensions which include ANSI, ASME, DIN, EN, BS, JIS. Flanges have major applications in Oil, Gas, Petrochemical, Ship-Building, Marine, Food, Dairy, Railways and other associated industries were piping systems are required.
Stainless Steel Slip On Flange — Alloy Slip-On Flanges is slightly larger than the outer diameter of the pipe it is to be used with. The pipe is slipped into the Flange prior to welding both inside and outside. We supply a wide range of slip-On Flanges in different dimensions and sizes.
Stainless Steel Blind Flange — Alloy Flange with no borehole are known as Blind Flange and used to close the end of the pipe. Blind Flanges are supplied as threaded or welded from class 150lb to 2500lb.
Stainless Steel Weld Neck Flange — Alloy Weld Neck Flanges are widely used in high-pressure piping systems and can be easily recognised by the long tapered hub. The size of the bore hole is usually equal to the size of the pipe.
Stainless Steel Socket Weld Flange — Initially developed for small high-pressure piping systems a Socket Weld Flange is similar to Slip On Flange. The flange is installed by welding around the hub of the flange.
Stainless Steel Threaded Flange — Threaded Flanges are used for special application where the flange can be assembled to the piping system by without welding. We specialise in all forms of threaded flanges and can supply it in multiple size range.
Stainless Steel Lap Joint Flange — Lap-Joint Flanges are similar to Slip-On flanges and are generally used with Lap-Joint Stubs. This type of flange is highly used where the piping systems are disassembled from time to time.
Siddhagiri Metals and Tubes supplies Stainless Steel Flanges in different sizes and pressure ratings. Our production stock of Stainless Steel Flanges includes size range from 1/2” to 24”, 26” to 60”, 1” to 24”, 1/2” to 24”, 12” to 60”, 26” to 48”, 21/16” to 30”, DN10 to DN3600. We have an inventory of flanges rating from Class 150 to 2500 Lbs, Class 300 to 2500 Lbs, Class 150 to 2500 Lbs, Class 150 to 900 Lbs, Class 150 to 600 Lbs, 2000 Psi to 20000 Psi, PN6 to PN 160. Our flanges conform to international dimension standards such as ASME / ANSI B16.5, ASME B16.47 / API 605, ASME / ANSI B16.36, ASME B16.48 / API 590, MSS-SP-44, BS 3293, API 6A and DIN. We stock various types of flanges which include Slip On Flange, Blind Flange, Weld Neck Flange, Socket Weld Flange, Threaded Flange, Lap Joint Flange.
We have an extensive inventory of multiple stainless steel flanges and alloy flanges to compliment our pipe products. Most of our high quality, flanges and gasket kits are ready to ship upon request. Speak to one of our specialists and find out which flanges to meet your flange and piping specifications. We have partnered with the best flange brands around the world to meet your flange requirements. We also stock flanges from Ulma — Spain, Metalfar — Italy, Mellesi — Italy, Massoti — Italy. Moreover, we are SAUDI ARAMCO approved supplier of flanges and provide all documents including Mill Certificate along with the shipment.
Our primary export destinations include Russia, Australia, UK, Germany, US, Saudi Arabia, Qatar, Jordan, South Africa, Thailand, Canada, Mexico, Brazil and much more.
- Flange Specification: ASTM A182 F304, ASME SA182 UNS S30400 & EN 1.4301
- Dimension Standard: ASME / ANSI B16.5, ASME B16.47 / API 605, ASME B16.48 / API 590, MSS-SP-44, BS 3293, API 6A, DIN DN10 to DN3600
- Size Range: 1/2” to 24”
- Rating: Class 150 to 2500 Flanges | PN 6, PN 10, PN 16, PN 25, PN 40, PN 64 upto PN 160
- Type of Flanges: 304/304L Weld-Neck Flanges, 304/304L Socket-Weld Flange, 304/304L Lap-Joint Flange, 304/304L Orifice Flange, 304/304L Tongue-Grove Flange, 304/304L Blind Flange, 304/304L Threaded Flange, 304/304L Slip-On Flange, 304/304L Spectacle Flange, 304/304L Plate Flanges
- Form: SORF, BLRF, WNRF, SWRF, LJRF, LWNRF, RTJ, Flat Face, Ring Type, Raised Face
- Origin: Indian Origin, European Origin, Japanese Origin
- Testing and Documents: Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, Destructive Test Report, Non Destructive Test Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports
- Packing: Packed in Wooden Boxes, Bubble wraps, Steel Strips Bundled, or as per Customers Requests
304 and 304L Alloy Flanges in Stock
|Dimension Standard||Size Range||Rating|
|ASME / ANSI B16.5 Flanges||1/2” to 24”||Class 150 to 2500 Lbs|
|ASME B16.47 / API 605 Flanges||26” to 60”||-|
|ASME / ANSI B16.36 Flanges||1” to 24”||Class 300 to 2500 Lbs|
|ASME B16.48 / API 590 Flanges||1/2” to 24”||Class 150 to 2500 Lbs|
|MSS-SP-44 Flanges||12” to 60”||Class 150 to 900 Lbs|
|BS 3293 Flanges||26” to 48”||Class 150 to 600 Lbs|
|API 6A Flanges||2 1/16” to 30”||2000 Psi to 20000 Psi|
|DIN Flanges||DN10 to DN3600||PN6 to PN 160|
Forms of ASTM A182 F304 in Stock
Weld Neck Flange
304/304L Weld Neck Flange available from class 150 to 2500
Tongue Groove Flange
304/304L Tongue Groove Flanges available from PN6 to PN 160 ratings
304/304L Threaded Flange available in ASME / ANSI B16.5 standards
ASTM A182 304/304L Spectacle Flange
Socket Weld Flange
ASTM A182 Socket Weld Flange
Slip On Flange
304/304L Slip On Flange ASTM A182
304/304L Orifice Flange available from PN6 to PN 160 ratings
Lap Joint Flange
304/304L Lap Joint Flange available in ASME B16.36 and ANSI B16.36 ASTM A182 Flanges
ASTM A182 304/304L Blind Flange available from class 150 to 2500LB
C P Mn Ni S Si Cr MIN - - - 8.000 - - 18.000 MAX 0.080 0.045 2.000 10.500 0.030 0.750 20.000 C Mn Si P S Cr Ni MIN - - - - - 18.000 8.000 MAX 0.030 2.000 0.750 0.045 0.030 20.000 12.000
(% in 50mm)
MIN 205 515 40.00 MAX 92 Yield Strength
(% in 50mm)
MIN 485 170 40.00 - MAX - - - 92
Density lb/in³ 0.285 kg/dm³ 7.9 Modulus of Elasticity psi 29 x 10-6 GPa 200 Thermal Conductivity Btu/ft hr°F 8.7 W/m°C 15 Heat Capacity Btu/lb°F 0.12 J/kg°C 500 Electrical Resistivity Ω-inch 27.6 x 10-6 µΩm 0.73 Poissons ratio 0.3 Density lb/in³ 0.285 kg/dm³ 7.9 Modulus of Elasticity psi 29 x 10-6 GPa 200 Thermal Conductivity Btu/ft hr°F 8.7 W/m°C 15 Heat Capacity Btu/lb°F 0.12 J/kg°C 500 Electrical Resistivity Ω-inch 27.6 x 10-6 µΩm 0.73 Poissons ratio 0.3
Properties of 304/304L alloy
304/304L Cold Forming
Type 304/304L is readily formed and fabricated through a full range of cold working operations. It can be used in heading, drawing, bending, and upsetting. Any cold working operations will increase the strength and hardness of the material, and may leave it slightly magnetic.
304/304L Hot Forming
Type 304/304L can be forged in the 1700-2200°F range. For maximum corrosion resistance, forgings should be annealed at 1900°F minimum and water quenched or rapidly cooled by other means after hot working operations.
Type 304/304L is a tough austenitic stainless steel subject to work hardening during deformation and, unless modified for improved machining response, is resistant to chip breaking. The best machining results are achieved with slower speeds, heavier feeds, excellent lubrication, sharp tooling, and powerful, rigid equipment.
Type 304/304L is readily welded by a full range of conventional welding procedures (except oxyacetylene). AWS E308L/ER308L filler metals should be used with Type 304/304L steel, but the molybdenum-containing austenitic stainless steel filler metals may also be considered.
304/304L Heat Treatment
Annealing: Type 304/304L should be heated to 1900ºF minimum and water quenched or rapidly cooled by other means.
Hardening: Type 304/304L cannot be hardened by heat treatment. However, Type 304/304L can be hardened by cold working.
Services We Offer
Documentation is a very important part of the products we supply, and we work continuously to enhance the efficiency of the document-handling process without compromising quality of the product. Documents provided along with the shipment include Certificate of Origin, Material Test Certificate as per EN 10204 3.1 and 10204 3.2, NACE MR10103 and NACE MR0175 certified Test Certificates.
Stainless Steel Flanges and Fittings are manufactured and controlled to international standards such as ASTM, ASME, BS, MSS, EN, DIN or WERKSTOFFE. Our products undergo stringent quality tests before they are dispatched.
PMI Testing, Ultrasonic Test, Mechanical Testing, Spectro Tests for Chemical Analysis of the grade, Flaring Test, IGC, etc. are some of the tests conducted at our facility. We welcome stage wise inspection from any of your representative or third party inspection agencies.
Packing and Delivery
The product is wrapped and packed in wooden crates or carton boxes. Our primary goal is to deliver quality products in time, no matter where the client is located.