UNS N08020 steel pipe, Alloy 20 Pipe, 2.4660 Pipe
Alloy 20, also known as Carpenter 20, is a Nickel-iron-chromium Austenitic alloy that was developed for maximum resistance to acid attack, specifically sulfuric acid. This superalloy has excellent resistance to general corrosion, pitting, and crevice corrosion in chemicals containing chlorides and sulfuric, phosphoric, and nitric acids. It also contains niobium for stabilization against sensitization and resultant intergranular corrosion. At 33% nickel, Alloy 20 has practical immunity to chloride stress corrosion cracking. This alloy is often chosen to solve SCC(stress corrosion cracking) problems, which may occur with 316L stainless.
Alloy 20 Pipe Chemical Composition
| Grade |
UNS |
C≤ |
Mn≤ |
P≤ |
S≤ |
Si≤ |
Ni |
Cr |
Mo |
Cu |
| Alloy 20 |
N08020 |
0.07 |
2 |
0.045 |
0.035 |
1 |
32.0-38.0 |
19.0-21.0 |
2.0-3.0 |
3.0-4.0 |
Alloy 20 Pipe Mechanical Properties
| Mechanical properties |
Tensile, min, ksi[MPa] |
Yield, min, ksi[MPa] |
Elongation, %(min) |
| Alloy 20 |
80[551] |
35[241] |
30 |
Alloy 20 Physical Properties
| Properties |
Metric |
Imperial |
| Density |
8.05 g/cm3 |
0.291 lb/in3 |
| STANDARD |
WERKSTOFF NR. |
UNS |
AFNOR |
EN |
| Alloy 20 |
2.4660 |
N08020 |
Z2NCUD31-20AZ |
NiCr20CuMo |
| ASTM B729 /ASME SB729 |
Specification for Seamless UNS N08020, UNS N08026, and UNS N08024 Nickel-Alloy Pipe and Tube |
| Material Grade |
UNS N08020 |
UNS N08026 |
UNS N08024 |
|
|
| Size |
1/2''~48'' |
| Thickness |
SCH5~SCHXXS |
| End |
Beveled End,Plain End |
| Length |
As per your requirement. |
| Packing |
Export Standard packing or as per your requirements. |
Alloy 20 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
