Answer
A-286 (an iron-nickel-chromium based superalloy, ASTM A638) is prized for its ability to maintain high strength and oxidation resistance from cryogenic temperatures ($-423^{\circ}F$) up to $1300^{\circ}F$. د ځینو سټینلیس سټیلونو برخلاف چې په کریوجینک تودوخې کې ټوټه ټوټه کیږي، A-286 خپل نرموالی او سختۍ ساتي. د څپې په جریان کې، دا د مایع نایتروجن یا اکسیجن سمبالولو تجهیزاتو لپاره مثالی کوي. Its coefficient of thermal expansion is also relatively low, which helps maintain constant spring preload during the extreme thermal cycling common in rocket engine components. The processing involves an age-hardening step (typically $1325^{\circ}F$ for 16 hours) to precipitate the gamma-prime phase $(\text{Ni}_3(\text{Al, Ti}))$, which provides its strength.
