Ipayipi lensimbi engenamthungo liyinto esebenza kakhulu esetshenziswa kabanzi embonini nasekwakhiweni. Isici sawo esiyinhloko ukuthuthukisa izakhiwo zemishini, ukumelana nokugqwala nokumelana nokushisa okuphezulu kwamapayipi ensimbi ngokungeza izakhi ezihlukene zengxubevange, njenge-chromium, i-molybdenum, i-nickel, njll.

I-ASTM A335P series:

P5: Ipayipi lensimbi le-P5 liqukethe u-5% we-chromium no-0.5% molybdenum, linokumelana okuhle kwe-oxidation namandla okushisa aphezulu, futhi livame ukusetshenziswa kumapayipi okushisa aphezulu kanye nemboni ye-petrochemical.
P9: Ipayipi lensimbi le-P9 liqukethe i-chromium engu-9% ne-1% molybdenum, linokumelana ne-oxidation ephakeme nokumelana nokugqwala kune-P5, futhi ifanele izinga lokushisa eliphezulu kanye nemvelo yokucindezela okuphezulu.
P11: Ipayipi lensimbi le-P11 liqukethe i-chromium engu-1.25% kanye ne-0.5% molybdenum, linokusebenza okuphezulu okubanzi, futhi lisetshenziswa kabanzi kuma-boilers okushisa okuphezulu kanye nezishintshi zokushisa.
P22: Ipayipi lensimbi le-P22 liqukethe u-2.25% we-chromium no-1% we-molybdenum, linamandla okushisa aphezulu nokumelana ne-oxidation, futhi livame ukusetshenziswa ekushiseni okuphezulu kanye namapayipi okucindezela okuphezulu ezitshalweni zamandla nasembonini ye-petrochemical.
P91: Ipayipi lensimbi le-P91 i-chromium ephezulu nensimbi ephezulu ye-molybdenum, equkethe u-9% we-chromium no-1% we-molybdenum, futhi iqukethe amanani amancane e-vanadium ne-nitrogen. Inamandla okushisa aphakeme kakhulu namandla okukhasa futhi isetshenziswa kabanzi ezitshalweni zamandla eziphakeme kakhulu kanye ne-ultra-supercritical power.
I-ASTM A213T series:

T11: Ipayipi lensimbi le-T11 liqukethe i-chromium engu-1.25% ne-0.5% molybdenum, efana ne-P11, futhi isetshenziswa kakhulu ekushintsheni ukushisa okuphakeme kanye nama-boilers.
T22: Ipayipi lensimbi le-T22 liqukethe i-chromium engu-2.25% ne-1% molybdenum, ifanele izinga lokushisa eliphezulu kanye nezindawo zokucindezela okukhulu, futhi isetshenziswa kabanzi ezitshalweni zamandla nezimboni ze-petrochemical.
T91: Ipayipi lensimbi le-T91 liyafana ne-P91, liqukethe u-9% we-chromium no-1% we-molybdenum, futhi liqukethe i-vanadium ne-nitrogen. Inamandla amahle kakhulu okushisa aphezulu kanye nokumelana nokukhasa futhi ifanele izitshalo zamandla amakhulu kakhulu kanye ne-ultra-supercritical power.
I-EN 10216-2:
I-10CrMo9-10: Leli ipayipi lensimbi elivamile laseYurophu eliqukethe i-chromium ne-molybdenum, elinamandla amahle okushisa okuphezulu nokumelana nokugqwala, elivame ukusetshenziswa ezimbonini zamandla nezimboni ze-petrochemical.
Amapayipi ensimbi angenamthungo athuthukisa kakhulu ukusebenza okuphelele kwamapayipi ensimbi ngokwengeza izakhi ezithile ze-alloy ensimbi, futhi afanele izimo zokusebenza ezihlukahlukene ezidlulele. Uchungechunge lwe-P kanye nochungechunge lwe-T lwe-chromium ephezulu kanye namapayipi ensimbi e-molybdenum aphezulu, afana ne-P91 ne-T91, amele isiqondiso sokuthuthukiswa kwezinga lokushisa eliphezulu lesimanje nezinto ezicindezelayo futhi asetshenziswa kabanzi ezitshalweni zamandla eziphakeme kakhulu kanye ne-ultra-supercritical. Ukukhetha i-alloy efanelekile ye-seamless steel pipe impahla ayikwazi kuphela ukuqinisekisa ukuphepha nokusebenza okuzinzile kwephrojekthi, kodwa futhi kuthuthukisa kakhulu impilo yesevisi nokusebenza kahle kwemishini.