Igwe anaghị agba nchara dị ka duplex bụ ngwakọta nke austenite na ferrite nke nwere ike ka mma karịa ígwè ferritic na austenitic. Isi ihe dị iche bụ na super duplex nwere ọdịnaya molybdenum na chromium dị elu nke na-enye ihe ahụ ike ka ukwuu. Super duplex nwere otu uru ahụ dịka nke ya - ọ nwere obere ọnụ ahịa mmepụta ma e jiri ya tụnyere ọkwa ferritic na austenitic ndị yiri ya, n'ihi na ihe ndị ahụ na-abawanye ike na ike mmepụta, n'ọtụtụ oge nke a na-enye onye zụrụ nhọrọ nke ịzụta obere ọkpụrụkpụ na-enweghị mkpa imebi mma na arụmọrụ.

Atụmatụ:
1. Nguzogide dị egwu megide mkpọda na nchara mgbawa n'ime mmiri oké osimiri na gburugburu ebe ndị ọzọ nwere chloride, yana okpomọkụ ọkpọkọ dị oke mkpa karịrị 50°C
2. Ike ductility na mmetụta dị mma na okpomọkụ gburugburu na nke dị n'okpuru efu
3. Nnukwu iguzogide nchacha, mbuze na mbuze cavitation
4. Ezigbo iguzogide mgbawa nchara na gburugburu ebe nwere chloride
5. Nkwado ASME maka itinye arịa nrụgide