Nickel Alloy ASTM B729 N08020 Alloy20 Seamless Pipe For Petrochemical
Nickel Alloy ASTM B729 N08020 Alloy20 Seamless Pipe For Petrochemical
What material is N08020?
Alloy 20 (UNS N08020) is an austenitic, nickel-iron-chromium based superalloy with additions of Copper and Molybdenum which provide resistance to hostile environments, pitting, and crevice corrosion. It is also stabilized with Columbium to minimize carbide precipitation during welding.
YUHONG Group has been operating stainless steel/duplex/nickel alloy seamless pipe for more than 30 years, and has been exporting more than 80,000 tons of stainless steel/duplex/nickel seamless steel pipe every year. Our clients have covered more than 75 countries.
Alloy 20 is designed to withstand sulfuric acid. Its nickel, chromium, molybdenum and copper content all provide excellent general corrosion resistance. Restricted carbon and columbium stabilization allows the use of welded fabrication in corrosive environments, usually without post-weld heat treatment. Alloy 20 with 33% nickel is practically immune to chloride stress corrosion cracking. This alloy is often chosen to solve the SCC problems that can arise with 316L stainless steel.
Chemical Composition of N08020
| Ni | C | Mo | Mn | Si | Fe | Cu | S | P | Cr |
| 32 - 38 | 0.02 max | 2 - 3 | 1 - 2 | 0.7 max | Bal | 3 - 4 | 0.005 max | 0.02 max | 19 - 21 |
ASTM B729 Alloy 20 Pipe Specifications
| Specifications | ASTM B 729 ASME SB 729 |
| Dimensions | ASTM, ASME and API |
| Size | O.D: 4 to 219mm W. T.: 0.5 to 20mm |
| Specialized in | Large Diameter Size |
| Schedule | SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
| Type | Seamless / ERW / Fabricated / LSAW Pipes |
| Form | Round, Square, Rectangular, Hydraulic Etc. |
| Length | Single Random, Double Random & Cut Length. |
| End | Plain End, Beveled End, Treaded |
N08020 Equivalent Material
| STANDARD | UNS | WERKSTOFF NR. | AFNOR | EN |
| Alloy 20 | N08020 | 2.4660 | Z2NCUD31-20AZ | NiCr20CuMo |
Physical Properties
|
Density |
Specific Heat |
Electrical Resistivity |
Thermal Conductivity |
|---|---|---|---|
|
g/cm³ |
J/kg.°C |
µΩ·m |
W/m.°C |
|
8.08 |
500 |
1.08 |
12.3 |
Mechanical Properties
| Material Grade | Tensile Strength Rm N/mm²(MPa) min |
Yield Strength Rp0.2% N/mm²(MPa) min |
Yield Strength Rp 1.0% N/mm²(MPa) min |
Elongation (%) |
Brinell Hardness HBW 2.5/62.5 max |
|
| Alloy 20 2.4660 | Annealed | 550 | 240 | 270 | 40 | 220 |
Applications:
-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
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.