HOME → Our Products → Flanges → Stainless Steel Products → 321/321H Flanges Manufacturer
A182 Gr F321 / 321H Flange Size Chart | 1/2″ (15 NB) to 48″ (1200 NB) DN10~DN5000 |
Stainless Steel 321 / 321H Flange Standards | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092 |
SS Grade F321 / 321H Flange Pressure Rating ANSI | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS |
ASTM A182 F321 / 321H Stainless Steel Flanges Pressure Calculation in DIN | 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 |
ASME SA 182 F321 / 321H Flange | 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K |
ASME SA182 321 / 321H Stainless Steel Flange UNI | 6Bar 10Bar 16Bar 25Bar 40Bar |
A182 F321 / 321H Flange EN | 6Bar 10Bar 16Bar 25Bar 40Bar |
Coating | Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized |
Most common types of ASTM A182 F321 / 321H Stainless Steel Flange | Forged / Threaded / Screwed / Plate |
Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
ASME SA182M SS 321 / 321H Flange Production technique | Forged, Heat treated and machined |
A182 Grade F321 / 321H Flange Connect Type/ Flange Face Type | Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, Groove |
Special design | As per your drawing AS, ANSI, BS, DIN and JIS 15 NB (1/2″) to 200 NB (8″) Equal and Reducing Configurations |
ASME A182 SS 321 / 321H Flange Test | Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI ultrasonic flaw detector, Magnetic particle detector |
ASTM A182 SS 321 / 321H Flange Equipment | Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc |
SS 321 / 321H Flange Origin | Indian / West Europe / Japan / USA / Korean |
Manufacturer of Stainless Steel ASTM A182 F321 / 321H Flange | ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc. ASTM A182 F321 / 321H Flange: -BS Flange, EN Flange, API 6A Flange, ANSI Flange, ASME Flange, DIN Flange, EN1092-1 Flange, UNI Flange, JIS/ KS Flange, BS4504 Flange, GB Flange, AWWA C207 Flange, GOST Flange, PSI Flange B.S: BS4504 , BS3293, BS1560, BS10 AS 2129: Table D; Table E; Table H ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings ANSI : ANSI B16.5, ANSI B16.47(API605), MSS SP44, ANSI B16.36, ANSI B16.48 ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48 American standard (ANSI) German (DIN) British standard (BS) DIN: DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636, DIN 2637, DIN 2638 ASTM A182 F316 Stainless Steel Flanges The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276 |
ASME SA182M Stainless Steel 321 / 321H Flange Uses & application | Bitumen upgraders. Heavy oil refineries. Nuclear power (mostly seamless). Petrochemicals and acids. |
SS 321 / 321H EN 1092-1 Flange Export to | Ireland, Singapore, Indonesia, Ukraine, Saudi & Arabia, Spain, Canada, USA, Brazil, Thailand, Korea, Iran, India, Egypt, Oman, Dubai, Peru, etc |
Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175 |
Grade | C | Mn | Si | P | S | Cr | N | Ni | Ti |
SS 321 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 5(C+N) – 0.70 max |
SS 321H | 0.04 – 0.10 | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 4(C+N) – 0.70 max |
Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
8.0 g/cm3 | 1457 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Products | Size | |
ASTM B182 SS 904L Slip-On Flanges | ASTM B182 SS 904L Threaded Flanges | Sizes 1/8″ – 36″ Raised Face or Flat Face |
ASTM B182 SS 904L Weld Neck Flanges | ASTM B182 SS 904L Socket Weld Flanges | |
ASTM B182 SS 904L Blind Flanges | ASTM B182 SS 904L Reducing Flanges | |
ASTM B182 SS 904L Lap Joint Flanges | ASTM B182 SS 904L Plate Flanges | |
ASTM B182 SS 904L Orifice Flanges | ASTM B182 SS 904L Forged Flanges | |
ASTM B182 SS 904L Ring Type Joint Flanges | ASTM B182 SS 904L Square Flanges |
Products | Size | |
ASTM A182 SS F321 / 321H Slip-On Flanges | ASTM A182 SS F321 / 321H Threaded Flanges | Sizes 1/8″ – 36″ Raised Face or Flat Face |
ASTM A182 SS F321 / 321H Weld Neck Flanges | ASTM A182 SS F321 / 321H Socket Weld Flanges | |
ASTM A182 SS F321 / 321H Blind Flanges | ASTM A182 SS F321 / 321H Reducing Flanges | |
ASTM A182 SS F321 / 321H Lap Joint Flanges | ASTM A182 SS F321 / 321H Plate Flanges | |
ASTM A182 SS F321 / 321H Orifice Flanges | ASTM A182 SS F321 / 321H Forged Flanges | |
ASTM A182 SS F321 / 321H Ring Type Joint Flanges | ASTM A182 SS F321 / 321H Square Flanges |
STANDARD | WERKSTOFF NR. | UNS | JIS | EN |
SS 321 | 1.4541 | S32100 | SUS 321 | X6CrNiTi18-10 |
SS 321H | 1.4878 | S32109 | SUS 321H | X12CrNiTi18-9 |
American Steel Flanges Standard | |
Standard Code | Standard Name |
ANSI ASME SA-182 | Forged Flanges |
ANSI ASME B16.5 | Slip on flange, Welding neck flange, Blind flange, Threaded flange, Lap joint flange, RTJ flange |
ASME – B 16.47 | Welding neck flange, Blind flange |
ASME – B 16.36 | Welding neck flange Slip on flange |
German Steel Flanges Standard | |
DIN 2527 | Steel Blind Flanges, BLRF |
DIN 2573 / 2576 | Flat Flange for Welding (Slip On) |
DIN 2673 | Loose Flanges and Rings for Welding (Slip On Flanges and Plain Collars) |
DIN 2641 / 2642 | Lapped / Loose (Lap Joint) Flanges Plain Collars |
DIN 28115 | Long Neck Welding Flanges |
DIN PN10, PN16 | SS 321 PN10 Flanges, 321H SS DIN PN 10 Flanges, 321 SS PN16 Flange |
DIN PN20, PN25 | SS 321 PN20 Flanges, 321H SS DIN PN 25 Flanges |
DIN PN40, PN50 | SS 321 PN40 Flanges, 321H SS DIN PN 50 Flanges |
Japanese Steel Flanges Standard | |
JIS B2220 | Slip On plate flange (SOP), Slipon Hub (SOH), Socket Welding flange (SW), Welding neck flange (WN), Lap Joint (LJ), Threaded flange (TR)/ Integral flange (IT) Blank flange (BL) |
JIS B2291 | Slip On plate flange (SOP), Slipon Hub (SOH), Socket Welding flange (SW), Welding neck flange (WN), Lap Joint (LJ), Threaded flange (TR)/ Integral flange (IT) Blank flange (BL) |
JIS 5K, 10K | SS 321 5K SORF Flanges, 321H SS 10K SOFF Flanges |
JIS 16K, 20K | SS 321 16K Blind Flanges, 321H SS 20K BLRF Flanges |
JIS 30K, 40K | SS 321 30K Slip on Flanges, 321H SS 40K Blind Flanges |
Italian Flanges Standard | |
UNI FLANGES | Plan flanges (2276, 2277, 2278, 6083, 6084) Welding neck (2280, 2281, 2282, 2283, 2284, 2285, 2286) Lapped flanges (6088, 6089, 6090, 2999, 2300) Blind flanges (6091, 6092, 6093, 6094, 6095, 6096, 6097) threaded flanges (2253, 2254) |
British Standard Pipe Flanges Standard | |
BS 10 Table D | SS 321 BS 10 Table D Flanges, 321H Table D Pipe Flange |
BS 10 Table E | SS 321 BS 10 Table E Flanges, 321H Table E Pipe Flange |
BS 10 Table F | SS 321 BS 10 Table E Flanges, 321H Stainless Steel Table E Flanges |
BS 10 Table H | SS 321 BS 10 Table E Flanges, Stainless Steel 321H Table E Pipe Flanges |
Flange Schedule/Class | Pipe Size – Pipe Flanges | Flange Connection Type | Flange Material | Max. Pressure |
ASME B16.5 Class 150 | 1/2″ | FNPT | Stainless Steel 321 / 321H Flanges | 150 psi |
ASME B16.5 Class 150 | 1/2″ | Socket Weld | Stainless Steel 321 / 321H Flanges | 275 psi |
ASME B16.5 Class 150 | 1/2″ | Welded | Stainless Steel 321 / 321H Flanges | 150 psi |
ASME B16.5 Class 150 | 3/4″ | FNPT | Stainless Steel 321 / 321H Flanges | 150 psi |
ASME B16.5 Class 150 | 3/4″ | Socket Weld | Stainless Steel 321 / 321H Flanges | 275 psi |
ASME B16.5 Class 150 | 1-1/4″ | Socket Weld | Stainless Steel 321 / 321H Flanges | 275 psi |
ASME B16.5 Class 150 | 1-1/2″ | Socket Weld | Stainless Steel 321 / 321H Flanges | 275 psi |
ASME B16.5 Class 150 | 2″ | FNPT | Stainless Steel 321 / 321H Flanges | 150 psi |
ASME B16.5 Class 150 | 2″ | Socket Weld | Stainless Steel 321 / 321H Flanges | 275 psi |
ASME B16.5 Class 150 | 2-1/2″ | Socket Weld | Stainless Steel 321 / 321H Flanges | 275 psi |
ASME B16.5 Class 150 | 3″ | Socket Weld | Stainless Steel 321 / 321H Flanges | 275 psi |
ASME B16.5 Class 150 | 4″ | FNPT | Stainless Steel 321 / 321H Flanges | 150 psi |
ASME B16.5 Class 150 | 4″ | Socket Weld | Stainless Steel 321 / 321H Flanges | 275 psi |
ASME B16.5 Class 300 | 1/2″ | Slip On | Stainless Steel 321 / 321H Flanges | 720 psi |
ASME B16.5 Class 300 | 1/2″ | Slip On | Stainless Steel 321 / 321H Flanges | 720 psi |
ASME B16.5 Class 300 | 1″ | Slip On | Stainless Steel 321 / 321H Flanges | 720 psi |
ASME B16.5 Class 300 | 1″ | Slip On | Stainless Steel 321 / 321H Flanges | 720 psi |
ASME B16.5 Class 300 | 1-1/4″ | FNPT | Stainless Steel 321 / 321H Flanges | 720 psi |
ASME B16.5 Class 300 | 1-1/4″ | Slip On | Stainless Steel 321 / 321H Flanges | 720 psi |
ASME B16.5 Class 300 | 1-1/2″ | Slip On | Stainless Steel 321 / 321H Flanges | 720 psi |
ASME B16.5 Class 300 | 1-1/2″ | Slip On | Stainless Steel 321 / 321H Flanges | 720 psi |
ASME B16.5 Class 300 | 2″ | Slip On | Stainless Steel 321 / 321H Flanges | 720 psi |
ASME B16.5 Class 300 | 2″ | Slip On | Stainless Steel 321 / 321H Flanges | 720 psi |
ASME B16.5 Class 300 | 2-1/2″ | Slip On | Stainless Steel 321 / 321H Flanges | 720 psi |
ASME B16.5 Class 300 | 2-1/2″ | Slip On | Stainless Steel 321 / 321H Flanges | 720 psi |
ASME B16.5 Class 300 | 3″ | Slip On | Stainless Steel 321 / 321H Flanges | 720 psi |
ASME B16.5 Class 300 | 3″ | Slip On | Stainless Steel 321 / 321H Flanges | 720 psi |
ASME B16.5 Class 300 | 4″ | Slip On | Stainless Steel 321 / 321H Flanges | 720 psi |
ASME B16.5 Class 300 | 4″ | Slip On | Stainless Steel 321 / 321H Flanges | 720 psi |
Stainless steel is widely and extensively used in the industrial sector for its anti-corrosive properties. Stainless Steel 321/321H – a metal alloy of chromium (Cr), nickel (Ni), and molybdenum (Mo) that resists corrosion from most acids, alkalis, salts, seawater, and other agents.
Stainless Steel 321/321H Flanges
There are many different types of flanges available on the market today, but when it comes to choosing the right type for your project, it is important to consider the benefits of each. Stainless steel 321/321H flanges are a great option for many applications, thanks to their excellent corrosion resistance and high temperature strength. Here, we take a closer look at the features and benefits of this type of flange to help you make an informed decision.
Corrosion Resistance
One of the biggest advantages of using stainless steel 321/321H flanges is their excellent resistance to corrosion. This material is highly resistant to most types of corrosive environments, including those with high temperatures and pressures. Thanks to this property, these flanges are ideal for use in a wide range of industries, including chemical processing, oil and gas, and power generation.
High Temperature Strength
Another key benefit of stainless steel 321/321H flanges is their high temperature strength. This material is able to withstand temperatures up to 1500 degrees Fahrenheit without losing its structural integrity. This makes it an ideal choice for applications that require high temperature resilience, such as in boiler systems or exhaust systems.
What are Stainless Steel 321/321H Flanges?
A Stainless Steel 321/321H Flange is a device that is used to connect two pipes or tubes together. It is usually welded or screwed onto the pipe or tube. There are many different types of flanges, but the most common type is the Slip-On flange. This type of flange is easy to install and does not require welding.
Uses of the Steel 321/321H Flanges
There are many different types of flanges available on the market today, each with their own unique set of benefits and drawbacks. The Steel 321/321H Flanges is one type of flange that has become increasingly popular in recent years due to its many advantages. Some of the key benefits of this type of flange include:
-Exceptional resistance to corrosion: One of the most important benefits of the Steel 321/321H Flanges is its excellent resistance to corrosion. This makes it an ideal choice for applications where durability and long-term performance are critical.
-Superior strength: The Steel 321/321H Flanges also offer superior strength when compared to other types of flanges. This makes it an ideal choice for use in high-pressure applications.
-Ability to withstand high temperatures: Another benefit of the Steel 321/321H Flanges is its ability to withstand high temperatures without losing its structural integrity. This makes it an ideal choice for use in high-temperature environments.