Chitsulo chosapanga dzimbiri - Giredi 253MA (UNS S30815)

253MA ndi kalasi yophatikizira ntchito zabwino kwambiri pa kutentha kwambiri komanso kupanga kosavuta. Imalimbana ndi oxidation pa kutentha mpaka 1150 ° C ndipo imatha kupereka ntchito yabwino kuposa Giredi 310 mu carbon, nitrogen ndi sulfure yokhala ndi atmospheres.

Dzina lina la eni ake omwe ali mgululi ndi 2111HTR.

253MA ili ndi nickel yotsika kwambiri, yomwe imapatsa mwayi wochepetsera mpweya wa sulphide poyerekeza ndi ma aloyi apamwamba a nickel ndi Grade 310. Kuphatikizidwa kwa silicon, nayitrogeni ndi cerium zambiri kumapangitsa chitsulo kukhala chokhazikika, kutentha kwapamwamba komanso kutentha kwambiri. kukana kugwa kwa sigma phase.

Mapangidwe a austenitic amapatsa kalasi iyi kulimba kwambiri, ngakhale mpaka kutentha kwa cryogenic.

Zofunika Kwambiri

Zinthu izi zimatchulidwira zinthu zopindika (mbale, pepala ndi koyilo) monga Gulu S30815 mu ASTM A240/A240M. Zofanana koma osati zofanana zimatchulidwa pazinthu zina monga chitoliro ndi bar m'mapangidwe awo.

Kupanga

Mitundu yodziwika bwino yazitsulo zosapanga dzimbiri 253MA imaperekedwa patebulo 1.

Table 1.Zopangidwa ndi zitsulo zosapanga dzimbiri za 253MA