Steel card
2.4660/Alloy 20
VALBRUNA GRADE
AV20
STEEL TYPE
Corrosion Resistant Alloys
Profile shapes
- Round EN 10060 / EN 10278
- Flat EN 10058 / EN 10278
- Square EN 10059 / EN 10278
- Hexagonal EN 10278
- Angle EN 10056
- Bar steel, bright steel, wire, wire rod, billets, ingots, semi-finished products
Description of material
AV20 is a Niobium stabilized alloy with additions of Nickel, Chromium, Molybdenum and Copper with excellent resistance in acid aggressive environments.
Applications
The structure and composition of AV20 offers an excellent resistance to corrosive environments typical of the processing and production of acids. AV20 is widely used in chemical industries, in pharmaceutical, plastic and food processes and is suitable for the fabrication of many product such as flanges, valves, bolting, pump shafts, chains, fittings, tanks, handling acid, pickling plants, oil and gasoline production systems, petrochemical industries and several marine applications.
Designations
| Commercial name | Alloy 20 |
| International Designation | NiCr20CuMo |
| W.N. | 2.4660 |
| UNS | N08020 |
Chemical composition
| Chemical element | C | Mn | Si | S | P | Ni | Cr | Mo | Cu | Ta+Nb |
| Minimum value % | - | - | - | - | - | 32% | 19% | 2% | 3% | - |
| Maximum value % | 0,07% | 2% | 1% | 0,035% | 0,045% | 38% | 21% | 3% | 4% | 1% |
Mechanical properties
| Condition | Subtype | Rm [N/mm²] | Rm [Ksi] | Rp0,2% [N/mm²] | Rp0,2% [Ksi] | E4d [%] | HBW |
| Solution Annealed | A | 551 min | 80 min | 241 min | 35 min | 30 min | 325 max |