Incoloy 800 / 800H / 800HT (UNS N08800 / N08810 / N08811) super alloy good resistance to stress corrosion
General Overview:
Incoloy 800 is a non-magnetic alloy that offers good overall corrosion resistance, especially in acidic and caustic environments.
Incoloy 800H is a modification of Incoloy 800 with added aluminum and titanium, which allows for precipitation hardening.
Incoloy 800HT is designed for high-temperature applications and offers improved mechanical properties over Incoloy 800 and 800H.
Applications:
Suitable for applications in the aerospace industry, industrial furnaces, and power generation equipment where high-temperature strength and corrosion resistance are critical.
In summary, Incoloy 800, 800H, and 800HT are versatile alloys with a range of properties that make them suitable for a variety of high-temperature and corrosive applications. Their high performance and reliability have led to their widespread use in industries such as chemical processing, power generation, and aerospace.
Chemical Composition Wt.% | % | Ni | Cr | Fe | C | Mn | Si | Cu | S | Al | Ti | |
800 | Min | 30 | 19 | 0.15 | 0.15 | |||||||
Max | 35 | 23 | Bal. | 0.10 | 1.5 | 1 | 0.75 | 0.015 | 0.6 | 0.6 | ||
800H | Min | 30 | 19 | 0.05 | 0.15 | 0.15 | ||||||
Max | 35 | 23 | Bal. | 0.10 | 1.5 | 1 | 0.75 | 0.015 | 0.6 | 0.6 | ||
800HT | Min | 30 | 19 | 0.06 | 0.15 | 0.15 | ||||||
Max | 35 | 23 | Bal. | 0.10 | 1.5 | 1 | 0.75 | 0.015 | 0.6 | 0.6 |
Physical Constants | Density(g/cm³) | 8 | ||||||
Melting Range(℃) | 1350-1400 |
Minimum mechanical properties of alloy at room temperature | Alloy | Typical mechanical properties | Tensile strength Rm N/mm² | Yield strength RP 0.2 N/mm² | Elongation A5 % | ||||
800 | 500 | 210 | 35 | ||||||
800H | 450 | 180 | 35 |