ASTM B575-17
The ASTM B575 Standard Specification outlines the requirements for low-carbon alloys that contain nickel, chromium, molybdenum, and other elements such as copper, tantalum, and tungsten. These alloys are commonly used in high-temperature applications that require resistance to corrosion and oxidation.
The standard covers several low-carbon alloy grades, including nickel-chromium-molybdenum-copper, nickel-chromium-molybdenum-tantalum, and nickel-chromium-molybdenum-tungsten. These alloys must meet specific chemical composition, physical, and mechanical properties, including tensile strength, yield strength, and elongation.
The ASTM B575 Standard Specification also outlines the preferred methods for testing and evaluating these alloys, including chemical analysis, mechanical testing, and nondestructive testing. The standard includes several annexes and appendices that provide additional information on testing methods and acceptance criteria.
Overall, the ASTM B575 Standard Specification is an essential reference for anyone involved in the design, manufacture, or use of low-carbon nickel alloys in high-temperature applications. Compliance with this standard ensures that these alloys meet the necessary requirements for performance and durability in harsh conditions.
The ASTM B575 and ASME SB 575 specifications outline the requirements for plates, sheets, and strips made from low-carbon nickel-chromium-molybdenum alloys such as ASTM B575 UNS N10276, N06022, N06455, N06035, UNS N06058, and UNS N06059. These materials are specifically designed for use in corrosive environments. Additionally, the specifications also cover low carbon nickel-chromium-molybdenum-copper alloy (ASME SB 575 UNS N06200), which is suitable for general corrosive service applications. It is essential to adhere to these guidelines when manufacturing or using these alloys to ensure their quality and performance in corrosive environments.
ASTM B575 Material Specification:
The ASTM B575 standard outlines the various product forms for Hastelloy alloys. These product forms include sheet, plate, coil, and strip. Specifically, when it comes to the ASTM B575 UNS N06022 alloy, plate production involves a hot rolling process, resulting in thicker walls. On the other hand, the production of Hastelloy C276 sheet primarily relies on cold rolling, which contributes to the formation of relatively thin walls.
Furthermore, nickel alloy C22 strip is also created through cold rolling, but with a focus on narrower widths. Consequently, this strip is supplied in coil form for convenience and ease of use. It is worth noting that these production processes and forms cater to different requirements and applications within the realm of Hastelloy alloys.
Hot or cold rolled sheet and strip are subjected to solution annealing and descaling, unless a bright finish can be achieved by conducting the solution annealing process in an atmosphere.
The hot or cold rolled ASTM B575 Plate is meticulously processed to ensure the highest quality. It undergoes solution annealing to achieve optimal strength and durability. Additionally, the plate is meticulously descaled to remove any impurities and surface imperfections. Rest assured, this plate will meet your exacting standards and provide reliable performance for your specific applications.
| Alloy | Tensile Strength, min, psi (MPa) |
Yield Strength (0.2 % Offset), min, psi (MPa) |
Elongation in 2 in. (50.8 mm) or 4D min, % |
Rockwell Hardness, max |
|---|---|---|---|---|
| Hastelloy C-276 (N10276) | 100 000 (690) | 41 000 (283) | 40 | 100 HRB |
| Hastelloy C-22 (N06022) | 100 000 (690) | 45 000 (310) | 45 | 100 HRB |
| Hastelloy C-4 (N06455) | 100 000 (690) | 40 000 (276) | 40 | 100 HRB |
| Hastelloy G-35 (N06035) | 85 000 (586) | 35 000 (241) | 30 | 100 HRB |
| N06058 | 110 000 (760) | 52 000 (360) | 40 | 100 HRB |
| N06059 | 100 000 (690) | 45 000 (310) | 45 | 100 HRB |
| Hastelloy C-2000 (N06200) |

