Official Answer
Answer
A-286 (ASTM A453) wani babban ƙarfe ne na ƙarfe wanda ke kula da ductility na musamman da ƙarfin tasiri a yanayin zafi na cryogenic (har zuwa $-423 ^ ° F $). Ba kamar daidaitattun 300-jerin bakin karfe ba, A-286 ba ya jujjuya canjin lokaci zuwa martensite lokacin sanyi yayi aiki ko sanyaya, wanda ke hana abu daga zama magnetic da gaggautsa. Don maɓuɓɓugan ruwa a cikin bawuloli na LNG ko tsarin oxygen ruwa na sararin samaniya, A-286 yana ba da ingantaccen ƙimar bazara da juriya mai ƙarfi. Kayan yana yawanci tsufa a $1325 ^ ° F$ don haɓaka lokacin Ni3 (Al, Ti), yana haifar da ƙarfin amfanin gona kusan 100 ksi a cikin ɗaki, wanda a zahiri yana ƙaruwa a yanayin zafi na cryogenic.
