Our Products
Duplex UNS S31803 Flanges
UNS S31803 Flange, DIN 1.4462 Flanges
We are Manufacturer, Supplier & Exporter of Duplex Steel UNS S31803 Pipe Flanges, which has better resistance to sea water then Stainless Steel 316. Concerning taciturn workability in these Duplex Steel UNS S31803 Flanges, and so care is being needed as resistant pressure is soaring and elongation is squat when compared by means of Alloy 304. Duplex S31083 Flanges through the web of our in-house production centre fabricating flanges in rare metal types. We have a long procedure of quality control, under which we carefully assess all our products on the basis of various parameters. We inspect and check the correctness and precision of our Duplex Steel UNS S31803 Blind Flanges, ensuring that they are suited to function as water-proof seals at pipe ends. They are resistant to general corrosion.
To meet the diverse needs of our customers, we provide these Duplex Steel UNS S31803 Flanges in a variety of specifications. These Super Duplex Steel UNS S31803 flanges are technologically advanced and use high-quality materials, as directed by knowledgeable specialists. UNS NO S31803 Flanges that are actually manufactured from High Quality of Standard Raw Materials and are designed as per with national and international standards. UNS S31803 Flanges is very well suited to a lot of industrial processes.
Specification Chart of Duplex Steel S31803 Flanges
| Specifications | ASTM A182 / ASME SA182 |
|---|---|
| Flanges size | 1/2" (15 NB) to 48" (1200NB) DN10~DN5000 |
| Flanges Dimensions | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flange, ASME Flange, BS Flange, DIN Flange, EN Flange, GOST Flange. |
| Class / Pressure | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Flange Face Type | Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
| Manufacturing Standards | 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, ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE, BS Flange, EN Flange, API 6A Flange etc 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) Any other specilised Flange DIN: DIN 2527, DIN 2566, DIN 2573, UNS S45367 Flange, 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 The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203;UNI2276 |
| Standard UNI | 6Bar 10Bar 16Bar 25Bar 40Bar |
| Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
| Flanges uses & application | Nuclear power (mostly seamless). Petrochemicals and acids. Bitumen upgraders. Heavy oil refineries. |
| Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175. | |
Equivalent Grades
| 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 |
Chemical Composition
| Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
| S31803 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
Mechanical Properties
| Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
| S31803 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |