Duplex Steel 31803 Flanges
What are Duplex Steel 31803 Flanges?
Duplex Steel 31803 Flanges are high-performance components crafted from a specialized type of stainless steel renowned for its exceptional strength and corrosion resistance. These flanges are widely used in industries such as chemical processing, oil and gas, and marine environments due to their superior performance in demanding applications.
Key Features of Duplex Steel 31803 Flanges
- Excellent Corrosion Resistance: Duplex Steel 31803 Flanges exhibit exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking, making them ideal for applications in harsh environments.
- Superior Strength: These flanges offer a higher yield strength and tensile strength compared to traditional austenitic stainless steel flanges, ensuring durability and reliability in demanding conditions.
- Good Weldability: Duplex Steel 31803 Flanges are known for their excellent weldability, simplifying fabrication processes and reducing costs.
| 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 |
| 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 |
Other Types Of Duplex Steel 31803 Flanges
| DSS S31803 Flanges | Duplex Steel S31803 Lap Joint Flange |
| Duplex Steel S31803 Long Weld Neck Flange | Duplex Steel S31803 Industrial Flanges |
| S31803 Duplex Steel Forged Flanges | Duplex Steel S31803 RTJ Flange |
| S31803 Duplex Stainless Steel Plate Flange | UNS S31803 Square Flange |
| F51 Duplex Stainless Steel Flanges | Duplex Stainless Steel F51 SORF Flange |
| DSS S31803 WNRF Flange | Duplex Steel S31803 SWRF Flanges |
| ASME SA182 Duplex Steel S31803 Pipe Flanges | ASTM A182 Duplex Steel S31803 Plate Flange |
| Duplex Stainless Steel S31803 Flat Face Flange | Duplex Steel S31803 BS 4504 Flanges |
| Duplex Steel S31803 Orifice Flange | S31803 Duplex Steel Groove & Tongue Flanges |
| ANSI B16.5 Duplex Steel S31803 Flanges | S31803 Duplex Steel Loose Flange |
31803 Flanges Equivalent Grade
| Grades | EN | UNS | ISO |
| S31803 | 1.4462 | S31803 | 4462-318-03-I |
Duplex Steel 31803 Flanges Chemical Composition
| UNS Designation | Type | Composition, % B | |||||||||
| C | Mn | P | S | Si | Cr | Ni | N | Mo | Other Elements C | ||
| S31803 | . . . | 0.030 | 2.00 | 0.030 | 0.020 | 1.00 | 21.0-23.0 | 4.5-6.5 | 0.08-0.20 | 2.5-3.5 | . . . |
Duplex Steel 31803 Flanges Mechanical Properties
| UNS Designation | Type | Condition | Tensile Strength, min, ksi [MPa] | Yield Strength,A min, ksi [MPa] | Elongation in 2 in. [50 mm] or 4D, min, % | Reduction of Area, min, %B,C | Brinell Hardness, max |
| S31803 | . . . | annealed | 90 [620] | 65 [450] | 25 | . . . | 290 |
APPLICATION
Duplex Steel and Engineering Company is a leading supplier of high-quality Duplex Steel 31803 Flanges. We offer a wide range of sizes and specifications to meet your specific project requirements. Our commitment to quality and customer satisfaction ensures that you receive products that exceed your expectations.
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