ASTM B163 Incoloy 825 seamless pipe for chemical processing industry and acid production
ASTM B163 Incoloy 825 seamless pipe for chemical processing industry and acid production
ASTM B163 Incoloy 825 seamless pipe is an ideal choice for the chemical processing and acid production industries due to its excellent corrosion resistance, particularly to sulfuric and phosphoric acids, as well as its ability to withstand high temperatures and high stresses. Key properties include resistance to general and localized corrosion, high tensile strength, and suitability for applications such as sour piping, pickling tanks, and heat exchangers. When selecting pipe, it's important to consider its composition, the required mechanical properties such as strength and elongation, and the specific application, which may require high-temperature stress rupture performance.
Is Inconel 825 alloy magnetic?
Inconel 825 is generally not magnetic. The alloy is composed of a blend of nickel, iron, and chromium, with added molybdenum, copper, and titanium. These elements enhance its overall corrosion resistance and maintain its non-magnetic properties.
Chemical Composition of Incoloy Alloy 825 Pipe
| % | % | ||
| 38.0--46.0 | 0.05 max | ||
| 19.5--23.5 | 1.0 max | ||
| 2.5--3.5 | 0.03 max | ||
| 1.5 --3.0 | 0.5 max | ||
| 0.6--1.2 | 0.2 max | ||
| 22.0 min (~33%) |
Tensile Properties of Incoloy Alloy 825
| 0.2% Proof Stress |
% |
||||||
| 440 | 770 | 35 | |||||
| 880 | 1000 | 15 |
The outstanding performance of Incoloy 825 pipe lies in its corrosion resistance. Under both reducing and oxidizing conditions, Incoloy 825 pipe resists general corrosion, pitting and crevice corrosion, intergranular corrosion, and stress corrosion cracking. It is particularly suitable for use in sulfuric and phosphoric acid, sour flue gases, sour gas and oil wells, and seawater.
Incoloy 825 pipe can be easily hot- or cold-worked. Hot-working temperatures should be between 870 and 1180℃, and final working temperatures between 870 and 980℃. For optimal corrosion resistance, hot-worked parts should be stabilized and annealed before use. The alloy is more easily cold-formed than stainless steel.
Incoloy 825 pipe is stabilized and annealed at 940℃. The softest structure is achieved at 980℃. Components heavier than plate, strip, and wire should be quenched to avoid sensitization.
Incoloy 825 tubing is ideal for a variety of applications, with temperatures up to approximately 550℃ (1020℃F).
Gnee Steel specializes in the production and sale of various nickel-based alloys, including Nickel 201, Nickel 202, Hastelloy C-276, Hastelloy C-22, Hastelloy B, Hastelloy C-4, Inconel Alloy 600, Inconel 625, Inconel 718, Inconel X-750, Incoloy Alloy 800, Incoloy 800H/HT, Incoloy 825, Monel Alloy 400, Monel K500, and high-temperature alloys. Gnee Steel's products are widely used in aerospace, chemical, electric power, automotive, and nuclear energy applications. We also offer customized alloy solutions tailored to customer needs. For alloy pricing inquiries or customized alloy solutions, please contact us for a quote at ss@gneesteel.com.
