Duplex Steel F51 / 31803 / 1.4462 Flanges are widely used in various industries because of their exceptional characteristics and features. These flanges are made from duplex steel, which is a special kind of stainless steel that comprises two-phase microstructures. Combining two phases makes duplex steel an excellent choice for different applications.
Duplex Steel F51 Flanges Features:
Duplex Steel F51 Flanges are among various industries' most commonly used flanges. These flanges have several features that make them unique, including high strength, excellent corrosion resistance, and exceptional durability. Duplex Steel F51 Flanges are also highly resistant to stress corrosion cracking, further enhancing their reliability. The material used in these flanges is cost-effective, which makes it a popular choice for various applications.
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Duplex Steel 31803 Flanges Corrosion Resistance:
Duplex Steel 31803 Flanges are highly resistant to corrosion. They are used in several applications where corrosion resistance is essential. These flanges exhibit exceptional resistance to pitting and crevice corrosion, making them an ideal choice for harsh environments. The chromium and molybdenum content in Duplex Steel 31803 Flanges give them high corrosion resistance.
Duplex Steel 1.4462 Flanges Chemical Composition:
Duplex Steel 1.4462 Flanges are made of an alloy combining several elements. This alloy comprises chromium, nickel, molybdenum, and nitrogen, which give it exceptional characteristics and features. The high chromium content in Duplex Steel 1.4462 Flanges makes them highly corrosion-resistant. The nickel and molybdenum content improves strength, while the nitrogen content enhances flexibility.
Duplex Steel F51 Flanges Heat Treatment:
Heat treatment is a vital process in manufacturing Duplex Steel F51 Flanges. These flanges undergo heat treatment to attain specific properties. The heat treatment involves heating the flanges to a specific temperature and then cooling them down slowly to room temperature. This process helps to improve the mechanical properties of Duplex Steel F51 Flanges, such as strength, flexibility, and toughness.
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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Duplex Steel S31803 Slip On Flanges
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Duplex Stainless Steel S31803 Weld Neck Flanges
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Duplex S31803 Blind Flanges
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S31803 Duplex Steel Socket weld Flanges
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Duplex S31803 Threaded Flanges
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Duplex Steel S31803 Lap Joint Flagnes
- S31803 Duplex Steel SORF Flange
- Duplex Steel S31803 Industrial Flanges
- UNS S31803 Flanges
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- DSS S31803 Lapped Joint Flanges
- Duplex Steel S31803 Long Weld Neck Flange
- Duplex S31803 Flanges
- Duplex Steel Gr.F51 BLRF Flanges
- S31803 Duplex Steel Spectacle Blind Flange
- Duplex Steel S31803 Flat Face Flange
- Duplex Steel Gr.F51 Flange HSN Code
- ASME SA182 Duplex S31803 Flange
- Duplex Steel S31803 Pipe Flanges
- ASTM A182 Duplex Steel S31803 Flange
- Duplex Steel Gr.F51 Flanges
- Duplex Stainless Steel S31803 BS 10 Table D Flange
- Duplex Steel Grade F51 Flanges
- Duplex Stainless Steel S31803 Flange Price List
- Duplex Steel S31803 Weld Neck Flanges
- UNS S31803 Duplex Stainless Steel Flanges
- ASME B16.5 DSS S31803 Screwed Flanges
- S31803 Duplex Steel JIS B2220 Flange
- ANSI B16.5 DSS S31803 WNRF FLange
- Duplex Steel S31803 Forged Flange
- Duplex S31803 Ring Type Joint Flange
- Duplex Stainless Steel S31803 Reducing Flanges
- Duplex Steel Gr.F51 Plate Flanges
- ANSI B16.36 DSS S31803 Orifice Flange
- S31803 Duplex Steel Slip on Flanges
- Duplex Stainless Steel Gr.F51 Flanges
- Duplex Steel S31803 Plate Flanges
- Duplex Stainless Steel S31803 Flange
- S31803 Duplex Steel Raised Face Blind Flange
- Duplex Steel S31803 BS 4504 Flanges
- Duplex Steel S31803 RTJ Flange
- ASME SA182 Duplex Steel S31803 SWRF Flanges
| STANDARD | WERKSTOFF NR. | UNS |
| Duplex 31803 | 1.4462 | S31803 |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| S31803 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 22.0 – 23.0 | 3.0 – 3.5 | 4.50 – 6.50 | 0.14 – 0.20 | 63.72 min |
| Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
| S31803 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
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