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PyrometŪ Alloy 31

(U.S. Patent No. 3,972,713)
(UNS N07031)

Nominal Analysis
0.04 C, 0.20 Mn, 0.20 Si, 0.015 P, 0.015 S, 22.7 Cr, 55.5 Ni, 2.0 Mo, 2.5 Ti, 1.5 Al, 1.1 Cb, 0.005 B, Bal. Fe

Precipitation-hardenable superalloy exhibits corrosion resistance and strength to 1500°F (816°C). Resistant to sour brines and hot sulfidation attack. Has been used for many demanding applications, including hardware in coal gasification units.


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