Duplex steel flanges are solidified Duplex’s and, furthermore, particularly erosion-safe. The microstructures of this steel are composed of ferrite and austenite stages' combinations. Thus, they comprise the elements of both ferritic and austenitic-treated steel. It has high strength and phenomenal protection from erosion. Duplex-hardened steel flanges have astounding intergranular erosion. It has remarkable high protection from erosion, breaking pressure even in sulphide and chloride conditions.
At temperatures in excess of 300 degrees Celsius, duplex steel flanges are not yet shielded from the erosion that causes embrittlement. Conduit capacity is fantastic in low temperatures, too. The creation work is done exclusively through the instruments appointed for materials made of treated steel. Before they are utilized, they should be cleaned appropriately. Saving the hardened steel from cross-pollution from the eroded metals is finished.
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These flanges can be solidified by intense treatment. Duplex steel flanges are utilized in seaward oil boring organizations, utilized in aeroplane ventilation systems, involved in petrochemicals, in power generation, in gas handling, in drugs, involved in specialty synthetic substances, twisting welded tube for burner lines and fills, drug hardware, heat exchangers, and furthermore in seawater gear. Twofold steel flanges are accessible in many ways, like slip-on, weld-neck, visually impaired, strung, lap joint, and attachment weld.
The test authentication is as per EN 10204/31B. Material testing incorporates intergranular consumption (IGC) tests, erupting tests, pitting obstruction tests, miniature and large-scale tests, levelling tests, positive material ID tests, Duplex examinations, hardness tests, and mechanical testing, for example, in tractable regions. The bundling is in wooden beds and cases to stay away from the harm of the material during its conveyance and to keep up with the trust of the clients.
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S31803/S32205 Duplex Stainless Steel Flanges Equivalent Grades
| STANDARD | WNR. |
|---|---|
| Duplex S31803 / S32205 | 1.4462 |
Specification of Duplex Stainless Steel S31803/S32205 Flanges
Duplex Stainless Steel Flanges Specification : ASTM A182 / ASME SA182
Dimension Standard : ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Standard : ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Size : 1/2" (15 NB) to 48" (1200NB)
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)
DIN Flanges : DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673.
JIS Flanges : JIS B2220 5K, JIS B2220 10K, JIS B2220 16K, JIS B2220 20K
BS Flanges : BS4504 PN 6, BS 4504 PN 10, BS4504 PN 16, BS4504 PN 25, BS4504 PN 40, BS 4504 PN 64, BS 4504 PN 100, BS 4504 PN 160, BS 4504 PN 250, BS 10, BS Table D, BS Table E, BS Table F, BS Table H.
Chemical Properties of Duplex Steel S31803/S32205 Flanges
| Grade | Common Name | C% | Mn% | Si% | P% | S% | Cr% | Ni% | Mo% | N% |
|---|---|---|---|---|---|---|---|---|---|---|
| 2205 | S31803 | 0.030 | 2.00 | 1.00 | 0.030 | 0.020 | 21.0-23.0 | 4.5-6.5 | 2.5-3.5 | 0.08-0.20 |
| 2205 | S32205 | 0.030 | 2.00 | 1.00 | 0.030 | 0.020 | 22.0-23.0 | 4.5-6.5 | 3.0-3.5 | 0.14-0.20 |
Mechanical Properties Of Duplex Steel S31803/S32205 Flanges
| Tensile strength | 620MPa min | Density | 7,805kg/m3 |
|---|---|---|---|
| Yield strength | 450MPa mi | Elastic modulus | 200GPa |
Physical Properties of S31803/S32205 Duplex Steel Flanges
| Elongation | 25% min | Mean coefficient of thermal expansion | |
|---|---|---|---|
| Brinell hardness | 293 HB max | 0-100oC | 13.7µm/m/oC |
| Rockwell hardness | 31 HR C max | 0-315oC | |
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