Bright Surface ASTM B729 NO8020 Nickel Alloy Pipes for High-Pressure and High-Temperature Environments
ASTM B729 NO8020 ALLOY20 Bright Surface Nickel Alloy Pipes
ASTM B729 NO8020 is a specification for seamless pipes made from a nickel alloy known as NO8020. This alloy is a high-performance material that offers excellent corrosion resistance, high strength, and good thermal stability. The pipes manufactured according to this specification are commonly used in industries such as chemical processing, oil and gas, and marine engineering.
The ASTM B729 standard specifies the dimensions, mechanical properties, and testing requirements for NO8020 nickel alloy pipes. It ensures that the pipes meet the necessary quality standards for their intended applications. Manufacturers and suppliers of these pipes must adhere to the requirements of this specification to ensure the reliability and performance of the products.
ASME SB729 Alloy 20 Pipe Mechanical Properties
| Density | Melting Range | Yield Stress (0.2%Offset) | Tensile Stress | Elongation |
| 8.1 g/cm3 | 1443 °C (2430 °F) | Psi - 35000 , MPa - 241 | Psi - 80000 , MPa - 551 | 30 % |
Alloy WERKSTOFF NR. 2.4660 Pipe Chemical Composition
| 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 |
Carpenter 20 Equivalent
| STANDARD | UNS | WERKSTOFF NR. | AFNOR | EN | JIS | BS | GOST |
| Alloy 20 | N08020 | 2.4660 | Z2NCUD31-20AZ | NiCr20CuMo | - | - | - |
Applications including:
- Hydrocarbon cracking
- Industrial furnace and boiler components and equipment
- Equipment for Heat-Treating
- Pressure vessels and heat exchangers
- Chemical and Petrochemical processing
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