Stainless steel 321 is a popular material in various industries. It is known for its excellent corrosion resistance, high strength, and good weldability. Flanges are a crucial component in piping systems. They serve as a connecting point for pipes, valves, and pumps.
Stainless Steel 321 Flanges
Stainless steel 321 flanges are a fitting designed to connect pipes. They come in different shapes and sizes, commonly slip-on, welded, threaded, and socket-weld flanges. Stainless steel 321 flanges are made from an alloy that contains 17-19% chromium, 9-12% nickel, and 0.08% carbon. This alloy also contains titanium, which provides stabilization against the formation of chromium carbides during welding and maintains corrosion resistance.
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Stainless Steel 321 Flanges Features
Stainless steel 321 flanges have many features that suit various industries. They have high strength and weldability, making them perfect for high-pressure applications. They also have excellent corrosion resistance, making them ideal for use in harsh environments. Additionally, they can withstand high temperatures of up to 900°C without losing their structural integrity.
Stainless Steel 321 Flanges Corrosion Resistance
Stainless steel 321 flanges are highly resistant to corrosion. The addition of titanium stabilizes the alloy, preventing the formation of chromium carbides that can lower corrosion resistance. The alloy is also resistant to acids, bases, and organic compounds, making it perfect for chemical and petrochemical industries. Additionally, stainless steel 321 flanges are resistant to pitting and crevice corrosion.
Stainless Steel 321 Flanges Chemical Composition
Stainless steel 321 flanges have an alloy composition that contains 17-19% chromium, 9-12% nickel, 0.08% carbon, 2-3% manganese, 1% silicon, and 0.5% titanium. Adding these elements gives the alloy unique properties, such as corrosion resistance, high strength, and good weldability.
Stainless Steel 321 Flanges Heat Treatment
Heat treatment is crucial in improving the strength and hardness of stainless steel 321 flanges. After being formed, the flanges undergo a process of annealing, which involves heating them to 1050-1100°C, followed by air cooling or water quenching. This process helps to remove stress and improves the machinability of the flanges. After annealing, the flanges can be further heat-treated using a process known as solution annealing, which involves heating the flanges to 930-1050°C, followed by rapid cooling in water.
Forging or Forming & Machining
Hole Drilling & Surface Treatment
Quality Control & Marking, Identification
Final Inspection and Packaging
| Standard | ASTM A182 / ASME SA182 |
| Dimensions | 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 |
| Flange Size Chart | 1/2" (15 NB) to 48" (1200NB), DN10~DN5000 |
| Pressure Rating | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS |
| Pressure Calculation in DIN | 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 |
| JIS | 16 K, 5K, 10 K, 20 K, 30 K, 40 K, 63 K |
| Flange Connection / 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, Flange Pipe. |
| Origin | West Europe / Japan / Indian / USA / Korean |
| Types of Flanges | Threaded / Screwed / Forged / Plate |
| Coating | Yellow Transparent, Zinc Plated, Anti-rust Paint, Oil Black Paint, Cold and Hot Dip Galvanized |
| Test Of Flange | Direct-reading Spectrograph, Ultrasonic flaw detector, Magnetic particle detector, X-ray detector, Hydrostatic testing machine. |
| Production technique Used | Heat treated, Forged and Machined |
| Equipment | Press machine, Bending machine, Pushing Machine, Sand-blasting machine, electric bevelling machine etc. |
| Test Certificates | EN 10204/3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report, etc |
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321 Stainless Steel Slip On Flanges
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321 Stainless Steel Weld Neck Flanges
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Stainless Steel 321 Blind Flanges
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Stainless Steel 321 Socket weld Flanges
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321 Stainless Steel Threaded Flanges
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321 SS Lap Joint Flagnes
- 321 Stainless Steel Plate Flanges
- ASME SA182 Stainless Steel 321 Flange
- Stainless Steel 321 Flanges
- Stainless Steel 321 Long Weld Neck Flange
- 321 Stainless Steel Pipe Flanges
- 321 Stainless Steel Flanges
- SS 321 BLRF Flanges
- SS 321 Flanges
- 321 Stainless Steel SORF Flange
- UNS S32100 Flanges
- SS 321 Lapped Joint Flanges
- ASTM A182 Stainless Steel 321 Flange
- 321 Stainless Steel Spectacle Blind Flange
- SS 321 Flange Price List
- SS 321 BS 10 Table D Flange
- Stainless Steel 321 Industrial Flanges
- ASME B16.5 SS 321 Screwed Flanges
- Stainless Steel 321 Reducing Flanges
- ANSI B16.36 SS 321 Orifice Flange
- Stainless Steel 321 BS 4504 Flanges
- Stainless Steel 1.4541 Flange
- Stainless Steel 321 Flat Face Flange
- Stainless Steel 321 Ring Type Joint Flange
- SS 321 Plate Flanges
- 321 Stainless Steel LWN Flanges
- 321 Stainless Steel Forged Flange
- ASME SA182 Stainless Steel 321 SWRF Flanges
- Stainless Steel 321 RTJ Flange
- 321 Stainless Steel Raised Face Blind Flange
- 321 Stainless Steel Weld Neck Flanges
- 321 Stainless Steel JIS B2220 Flange
- 321 Stainless Steel Slip on Flanges
- ANSI B16.5 SS 321 WNRF FLange
- Stainless Steel 321 Reducing Flanges
| STANDARD | WERKSTOFF NR. | UNS | JIS | EN |
| SS 321 | 1.4541 | S32100 | SUS 321 | X6CrNiTi18-10 |
| 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 |
| 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 % |
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