ASTM A240 UNS N08020 Alloy Plate 0.6 - 40.0mm Stainless Steel Plate Alloy 20
Products Specification
| Products | Alloy 20 / N08020 Stainless Steel Plate |
| Thickness | 0.6 - 40.0mm |
| Width | 1000mm 1219mm 1500mm or as request |
| Standard | ASTM A240/240M-18 |
| Brand | TISCO BAOSTEEL POSCO |
| Service | Cutting , bending , surface finishing |
| Other Grade | 201 202 304 304L 304H 309S 310S 316L 316Ti 317L 321 347 410 420 430 431 444 2205 2507 904L 254SMO 253MA N08020 C276 625 600 800 825 monel 400 500.etc |
| Standard Size | 1000*2000mm 1219*2438mm 1500*6000mm |
About N08020 / Alloy 20 material
UNS N08020, also known as Alloy 20 is one of the “super” stainless steels developed for maximum resistance to acid attack, because of this, there are various uses for it in both the stainless and nickel industries. Alloy 20 seems to fall in-between both the stainless and nickel categories, as it does contain characteristics of both; however, the unified numbering system (UNS) does ultimately recognize it as a nickel based alloy, hence the UNS N08020 number.
Alloy 20 is an austenitic nickel-iron-chromium based alloy with additions of copper and molybdenum. Its nickel content aids in its chloride ion stress and corrosion resistance. The addition of copper and molybdenum provides resistance to hostile environments, pitting and crevice corrosion. Chromium adds to its resistance of oxidizing environments, such as nitric acid, and columbium (or niobium) reduces the effects of carbide precipitation. Most welding methods can be used when working with Alloy 20, except for oxyacetylene welding. It can also be hot formed using the same forces required to hot work austenitic stainless steels. In terms of machineability, outstanding finishes are possible using the same set-up and process speeds used for austenitic stainless steels, such as Stainless Steels 316 or 317.
Grade Specification
| UNS | TYPE | AMS | ASTM | FEDERAL | CHARACTERISTICS |
| N08020 | Alloy 20 | – | A-473 | – | Excellent corrosion resistance & relatively easy fabrication. |
Chemical Compositon
| C | MN | P | S | SI | CR | NI | MO | CU | OTHER | M/NM |
| .07 Max | 2. Max | .045 Max | .035 Max | 1. Max | 19. – 21. | 32. – 38. | 2. – 3. | 3. – 4. | | NM |
Application of N08020 Alloy
- Chemical
- Flue gas desulfurization
- Food processing
- Industrial fluid handling
- Metal cleaning
- Mixing
- Petroleum
- Pharmaceuticals
- Pickling
- Plastics
- Process piping
- Solvents
- Synthetic fiber
- Synthetic rubber
Standard Specification of Alloy 20
| Alloy 20 Bars | ASTM B 473 |
| Alloy 20 Plate | ASME SB-463, ASME SB-464, ASTM B 463, ASTM B 464 |
| Alloy 20 Sheet | ASME SB-463, ASME SB-464, ASTM B 463, ASTM B 464 |
| Alloy 20 Strip | ASME SB-463, ASME SB-464, ASTM B 463, ASTM B 464 |
| Alloy 20 Wire | ASME SB-473 ASME SB-366, ASTM B 473, ASTM B 366 |
| Alloy 20 Weld Wire | AWS ER320LR, ASTM Weld Tube B468 |
| Alloy 20 Weld Pipe | ASTM B464 |
| Alloy 20 Other | UNS N08020, Werkstoff Nr. 2.4660, Covered Electrodes AWS E320LR, Fordings ASTM B462 |
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