Stainlesss Steel 321 Flanges
Siddhagiri Metals and Tubes is a leading supplier, manufacturer and exporter of AISI 321 Stainless Steel Flanges with ASTM A182 UNS S32100 and F321, in forms like SS 321 Weld Neck Flanges, SS 321 Socket Weld Flanges, SS 321 Slip-On Flanges, SS 321 Blind Flanges, SS 321 Threaded Flanges, SS 321 Lap Joint Flange, etc.
Other Names: ASTM A182 F321, ASTM A182 UNS S32100, Stainlesss Steel 321 Flanges, 321 Stainlesss Steel Flanges, AISI 321 Flanges
Material: SS321, AISI 321, SUS321, INOX 321, Stainlesss Steel 321
Brand: Siddhagiri Metals and Tubes
Manufacturer: Siddhagiri Metals and Tubes
AISI 321 Stainless Steel Flanges • ASTM A182 F321 UNS S32100 • Stainless Steel 321 Flanges
AISI 321 Stainless Steel Flanges of premium quality is supplied by Siddhagiri Metals and Tubes as per ASTM A182 F321 Flanges. We also provide value-added services to meet your unique needs, including custom-lengths, cut and strip, custom labels, striping, printing, and more. We take pride in personal customer service, starting with a real person answering your calls and an individual representative working with you one-on-one to meet your pricing and delivery needs. Our entire range of product is tested on various parameters in order to deliver best quality output.
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 S32100 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.
Stainlesss Steel 321 Slip On Flange — Stainless Steel 321 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 321 Slip On Flange and 321 Stainlesss Steel Slip On Flange is in ready stock with Siddhagiri Metals and Tubes.
Stainlesss Steel 321 Blind Flange — Stainless Steel 321 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 321 Blind Flange and 321 Stainlesss Steel Blind Flange is in ready stock with Siddhagiri Metals and Tubes.
Stainlesss Steel 321 Weld Neck Flange — Stainless Steel 321 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 321 Weld Neck Flange and 321 Stainlesss Steel Weld Neck Flange is in ready stock with Siddhagiri Metals and Tubes.
Stainlesss Steel 321 Socket Weld Flange — Initially developed for small high-pressure piping systems a Stainless Steel 321 Socket Weld Flange is similar to Slip On Flange. The flange is installed by welding around the hub of the flange. AISI 321 Socket Weld Flange and 321 Stainlesss Steel Socket Weld Flange is in ready stock with Siddhagiri Metals and Tubes.
Stainlesss Steel 321 Threaded Flange — Stainless Steel 321 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 321 Threaded Flange and 321 Stainlesss Steel Threaded Flange is in ready stock with Siddhagiri Metals and Tubes.
Stainlesss Steel 321 Lap Joint Flange — Stainless Steel 321 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 321 Lap Joint Flange and 321 Stainlesss Steel Lap Joint Flange is in ready stock with Siddhagiri Metals and Tubes.
Siddhagiri Metals and Tubes supplies Stainlesss Steel 321 Flanges in different sizes and pressure ratings. Our production stock of 321 Stainlesss 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 AISI 321 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 F321, ASTM A182 UNS S32100, EN 1.4828
- 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: Stainlesss Steel 321 Weld-Neck Flanges, Stainlesss Steel 321 Socket-Weld Flange, Stainlesss Steel 321 Lap-Joint Flange, Stainlesss Steel 321 Orifice Flange, Stainlesss Steel 321 Tongue-Grove Flange, Stainlesss Steel 321 Blind Flange, Stainlesss Steel 321 Threaded Flange, Stainlesss Steel 321 Slip-On Flange, Stainlesss Steel 321 Spectacle Flange, Stainlesss Steel 321 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 321 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 Stainless Steel 321 Flanges in Stock
SS 321 Weld Neck Flange
321 Stainless Steel Weld Neck Flange available from class 150 to 2500
SS 321 Tongue Groove Flange
321 Stainless Steel Tongue Groove Flanges available from PN6 to PN 160 ratings
SS 321 Threaded Flange
321 Stainless Steel Threaded Flange available in ASME / ANSI B16.5 standards
SS 321 Spectacle Flange
321 Stainless Steel Spectacle Flange with ASTM A182
SS 321 Socket Weld Flange
321 Stainless Steel Socket Weld Flangewith ASTM A182
SS 321 Slip On Flange
321 Stainless Steel Slip On Flange ASTM A182
SS 321 Orifice Flange
321 Stainless Steel Orifice Flange available from PN6 to PN 160 ratings
SS 321 Lap Joint Flange
321 Stainless Steel Lap Joint Flange available in ASME B16.36 and ANSI B16.36 ASTM A182 Flanges
SS 321 Blind Flange
321 Stainless Steel Blind Flange available from class 150 to 2500LB
C Ni Mn P S Si Cr MIN - - - - - - - MAX 0.200 14.000 2.000 0.045 0.030 1.000 23.000
(% in 50mm)
MIN 310 620 45.00 MAX 85
Density lb/in³ 0.285 Melting Range °F 2650 °C 1455
Properties of AISI 321 Stainlesss Steel
321 Stainless Steel Cold Forming
The alloy is quite ductile and forms in a manner very similar to 316. Cold forming of pieces with long-term exposure to high temperatures is not recommended since the alloy is subject to carbide precipitation and sigma phase precipitants.
321 Stainless Steel Hot Forming
Heat uniformly at 1742 – 2192°F (950 – 1200°C). After hot forming a final anneal at 1832 – 2101°F (1000 – 1150°C) followed by rapid quenching is recommended.
321 Stainless Steel Welding
Stainless Steel 321 can be readily welded by most standard processes including TIG, PLASMA, MIG, SMAW, SAW and FCAW.
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.
Stainlesss 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.