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ASTM A182 F51 Duplex Steel Forged Flange Welding Neck RF B16.5
What is material F51?
F51 - Duplex Stainless Steel
F51 tensile and yield strength is higher than conventional austenitic or ferritic grades of stainless steel. It has good weldability and good formability. Duplex steels contain both ferritic and austenitic microstructures. They have a high chromium content and a moderate nickel content.
F51 Equivalent Grades
| GRADE | STANDARD | WERKSTOFF NR. | UNS |
|---|---|---|---|
| F51 | Duplex 31803 | 1.4462 | S31803 |
F51 Chemical Composition
| Chemical composition for ASTM A182 F51 flange, % | |
|---|---|
| Carbon | 0-0.03 |
| Chromium | 21.00-23.00 |
| Manganese | ≤2.00 |
| Silicon | ≤1.00 |
| Phosphorous | 0-0.03 |
| Sulfur | 0-0.02 |
| Nickel | 4.50-6.50 |
| Nitrogen | 0.08-0.20 |
| Molybdenum | 2.50-3.50 |
| Iron | Balance |
ASTM A182 F51 Flanges Mechanical Properties
Tensile Strength,min. | Yield Strength,min. | Elongation,min. | Hardness Brinell, max |
|---|---|---|---|
Mpa | Mpa | % | HB |
620 | 450 | 25 | 290 |
ASTM A182 F51 Flanges Pressure rating
ASME/ANSI B 16.5 | Welding Neck, Socket Weld, Slip on, Blind, Lap Joint, Threaded, High Hub Blind, Ring Type Joint |
PRESSURE CLASS | 150, 300, 400, 600, 900, 1500, 2500 |
ASME/ANSI B 16.36 | Threaded, Welding Neck, Slip on (SORF) |
PRESSURE CLASS | 300, 400, 600, 900, 1500, 2500 |
ASME/ANSI B 16.47 | Weld Neck, Blind Flange [Series A & B] |
PRESSURE CLASS | 75, 150, 300, 400, 600, 900 |
BS 4504 SEC 3.1 | Welding Neck, Hubbed Threaded, Blank, Hubbed Slip on, Lapped Pipe End, Plate, Loose Plate, Loose Plate With Weld Neck |
PRESSURE CLASS | PN 2.5 TO PN 40 |
BS 1560 BOSS | Welding Neck, Slip-On, Socket Welding, Blind, Lapped, Screwed Boss |
PRESSURE CLASS | 150, 300, 400, 600, 900, 1500, 2500 |
BS10 | Welding Neck, Blind, Plate Slip-On, Screwed Boss, Slip-On Boss |
TABLE | D, E, F, H |
DIN | DIN 2527, 2641, 2642, 2566, 2573, 2576, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637, 2638, 2673 |
PRESSURE CLASS | PN 6 TO PN 100 |
BS 4504[PART 1] | Welding Neck, Loose Plate With Weld On Plate Collar, Hubbed Slip-On Hubbed Threaded, Plate, Blank |
PRESSURE CLASS | PN 2.5 TO PN 400 |
Applications
-Power Stations
-Ship Wright
-Food Processing Plants
-Oil and Gas Industrial Systems
-Hydraulic Systems and Marine Systems
