Stainless Steel 304H Flanges
Siddhagiri Metals and Tubes is leading suppliers and distributor of Stainless Steel 304H Flange. ASTM A182 F304H is available in a variety of sizes and configurations.
Other Names: ASTM A182 F304H, ASTM A182 UNS S30409, Stainless Steel 304H Flanges, 304H Stainless Steel Flanges, AISI 304H Flanges
Material: SS304H, AISI 304H, SUS304H, INOX 304H, Stainless Steel 304H
Brand: Siddhagiri Metals and Tubes
Manufacturer: Siddhagiri Metals and Tubes
AISI 304H Stainless Steel Flanges • ASTM A182 F304H UNS S30409 • Stainless Steel 304H Flanges
Stainless Steel 304H Flange of high quality and strength is supplied by Siddhagiri Metals and Tubes. We stock ASTM A182 F304H Flange in many different sizes. Siddhagiri Metals and Tubes looks at all aspects of our business to find ways we can improve. That includes processes, products and our relationship with the clients. Our commpany is ISO 9001:2015 Certified.
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 UNS S30409 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 304H Slip On Flange — Stainless Steel 304H 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. AISI 304H Slip On Flange and 304H Stainless Steel Slip On Flange is in ready stock with Siddhagiri Metals and Tubes.
Stainless Steel 304H Blind Flange — Stainless Steel 304H 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. AISI 304H Blind Flange and 304H Stainless Steel Blind Flange is in ready stock with Siddhagiri Metals and Tubes.
Stainless Steel 304H Weld Neck Flange — Stainless Steel 304H 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. AISI 304H Weld Neck Flange and 304H Stainless Steel Weld Neck Flange is in ready stock with Siddhagiri Metals and Tubes.
Stainless Steel 304H Socket Weld Flange — Initially developed for small high-pressure piping systems a Stainless Steel 304H Socket Weld Flange is similar to Slip On Flange. 304H Stainless Steel flange is installed by welding around the hub of the flange. AISI 304H Socket Weld Flange and 304H Stainless Steel Socket Weld Flange is in ready stock with Siddhagiri Metals and Tubes.
Stainless Steel 304H Threaded Flange — Stainless Steel 304H 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. AISI 304H Threaded Flange and 304H Stainless Steel Threaded Flange is in ready stock with Siddhagiri Metals and Tubes.
Stainless Steel 304H Lap Joint Flange — Stainless Steel 304H 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. AISI 304H Lap Joint Flange and 304H Stainless Steel Lap Joint Flange is in ready stock with Siddhagiri Metals and Tubes.
Siddhagiri Metals and Tubes supplies Stainless Steel 304H Flanges in different sizes and pressure ratings. Our production stock of AISI 304H 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.
Siddhagiri Metals and Tubes 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 Flanges Italy, Mellesi — Italy, Massoti — Italy. Moreover, we are SAUDI ARAMCO approved suppliers 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 F304H, ASTM A182 UNS S30409, EN 1.4948
- 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: Stainless Steel 304H Weld-Neck Flanges, Stainless Steel 304H Socket-Weld Flange, Stainless Steel 304H Lap-Joint Flange, Stainless Steel 304H Orifice Flange, Stainless Steel 304H Tongue-Grove Flange, Stainless Steel 304H Blind Flange, Stainless Steel 304H Threaded Flange, Stainless Steel 304H Slip-On Flange, Stainless Steel 304H Spectacle Flange, Stainless Steel 304H 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
AISI 304H 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 304H Stainless Steel Flanges in Stock
SS 304H Weld Neck Flange
304H Stainless Steel Weld Neck Flange available from class 150 to 2500
SS 304H Tongue Groove Flange
304H Stainless Steel Tongue Groove Flanges available from PN6 to PN 160 ratings
SS 304H Threaded Flange
304H Stainless Steel Threaded Flange available in ASME / ANSI B16.5 standards
SS 304H Spectacle Flange
304H Stainless Steel Spectacle Flange with ASTM A182
SS 304H Socket Weld Flange
304H Stainless Steel Socket Weld Flangewith ASTM A182
SS 304H Slip On Flange
304H Stainless Steel Slip On Flange ASTM A182
SS 304H Orifice Flange
304H Stainless Steel Orifice Flange available from PN6 to PN 160 ratings
SS 304H Lap Joint Flange
304H Stainless Steel Lap Joint Flange available in ASME B16.36 and ANSI B16.36 ASTM A182 Flanges
SS 304H Blind Flange
304H Stainless Steel Blind Flange available from class 150 to 2500LB
C Ni Mn P S Si Cr MIN 0.040 8.000 - - - - 18.000 MAX 0.100 10.500 2.000 0.045 0.030 0.750 20.000
(% in 50mm)
MIN 205 515 40.00 MAX 92
Density lb/in³ 0.285 Modulus of Elasticity psi 29 x 10-6 Thermal Conductivity Btu/ft hr°F 8.7 Heat Capacity Btu/lb°F 0.12 Electrical Resistivity ohm-inch 28.7 x 10-6
Properties of AISI 304H Stainless Steel
304H Stainless Steel Cold Forming
AISI 304H 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.
304H Stainless Steel Hot Forming
AISI 304H 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.
304H Stainless Steel Machining
AISI 304H 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.
304H Stainless Steel Welding
AISI 304H is readily welded by a full range of conventional welding procedures (except oxyacetylene). AWS E308H/ER308H filler metals should be used with Type Stainless Steel 304H. After welding Type Stainless Steel 304H it may be necessary to fully anneal to restore the corrosion resistance lost by sensitization to intergranular corrosion when chromium carbides were precipitated in the grain boundaries in the weld heat-affected zone.
304H Stainless Steel Heat Treatment
Annealing: Type Stainless Steel 304H should be heated to 1900ºF minimum and water quenched or rapidly cooled by other means.
Hardening: Type Stainless Steel 304H cannot be hardened by heat treatment. However, Type Stainless Steel 304H 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.