Incoloy 20
Details
Lork Group high-quality Incoloy 20 (UNS N08020 / W.Nr. 2.4660) is a Fe-Ni-Cr alloy stabilised by niobium with alloying additions of copper and molybdenum. Shows very good resistance to sulphuric acid, phosphorus acid and organic acids.
Products Description
Lork Group high-quality Incoloy 20 (UNS N08020 / W.Nr. 2.4660) is a Fe-Ni-Cr alloy stabilised by niobium with alloying additions of copper and molybdenum. Shows very good resistance to sulphuric acid, phosphorus acid and organic acids. Usable up to about 500°C.
Characteristic
- Excellent general corrosion resistance to sulfuric acid
- Excellent resistance to chloride stress corrosion cracking
- Excellent mechanical properties and fabricability
- Minimal carbide precipitation during welding
- Excels in resisting corrosion to hot sulfuric acids
Product Form
Bar: ASTM B 473
Plate/Sheet/Strip: ASME SB-463, ASME SB-464, ASTM B 463, ASTM B464
Wire: ASME SB-473 ASME SB-366, ASTM B 473, ASTM B 366
Pipe: ASTM B464
UNS N08020, Werkstoff Nr. 2.4660, Covered Electrodes AWS E320LR, Fordings ASTM B462
Chemical Composition
|
Element |
Content (%) |
|
Nickel, Ni |
32-38 |
|
Iron, Fe |
35 |
|
Chromium, Cr |
19-21 |
|
Copper, Cu |
3-4 |
|
Molybdenum, Mo |
2-3 |
|
Manganese, Mn |
≤2 |
|
Niobium, Nb |
≤1 |
|
Silicon, Si |
≤1 |
|
Others |
Remainder |
Physical Properties
|
Properties |
Metric |
Imperial |
|
Density |
8.05 gm/cm³ |
0.291 lb/in³ |
Mechanical Properties
|
Properties |
Metric |
Imperial |
|
Tensile strength(annealed) |
620 MPa |
89.9 ksi |
|
Yield strength(annealed) |
300 MPa |
43.5 ksi |
|
Elongation at Break |
41% |
41% |
Applications
- Synthetic rubber manufacturing equipment
- Processing of pharmaceuticals, plastics and organic and heavy chemicals
- Tanks, piping, heat exchangers, pumps, valves, and other process equipment
- Acid cleaning and pickling equipment
- Chemical process piping, reactor vessels
- Bubble caps
- Petrochemical process equipment
- Food and dye production