ʻO ke kila kila duplex super e like me ka duplex he microstructure i hui pū ʻia o ka austenite a me ka ferrite i hoʻomaikaʻi i ka ikaika ma luna o nā papa kila ferritic a me austenitic. ʻO ka ʻokoʻa nui, ʻo ka super duplex he molybdenum a me ka chromium kiʻekiʻe e hāʻawi ana i ka mea i ke kūpaʻa ʻana i ka corrosion. Loaʻa i ka Super duplex nā pono like me kona hoa - he haʻahaʻa nā kumukūʻai hana ke hoʻohālikelike ʻia me nā papa ferritic a me austenitic like a ma muli o nā mea i hoʻonui ʻia ka tensile a me ka ikaika yield, i nā manawa he nui hāʻawi kēia i ka mea kūʻai i ke koho i hoʻokipa ʻia e kūʻai i nā mānoanoa liʻiliʻi me ka ʻole o ka pono e hoʻokuʻu i ka maikaʻi a me ka hana.

Nā Hiʻohiʻona:
1. Ke kūpaʻa koʻikoʻi i ka pitting a me ka crevice corrosion i loko o ka wai kai a me nā wahi ʻē aʻe e loaʻa ana ka chloride, me ka mahana pitting koʻikoʻi ma mua o 50°C
2. Maikaʻi loa ka ductility a me ka ikaika hopena ma nā mahana ambient a me sub-zero
3. Kū'ē kiʻekiʻe i ka abrasion, ka erosion a me ka cavitation erosion
4. Kū'ē maikaʻi loa i ka haki ʻana o ka corrosion stress i nā wahi e loaʻa ana ka chloride
5. ʻAe ʻia ʻo ASME no ka noi ʻana o ka ipu kaomi