Alloy sumul karfe bututu ne high-yi abu yadu amfani da masana'antu da kuma yi. Its main alama ne don inganta inji Properties, lalata juriya da kuma high zafin jiki juriya na karfe bututu ta ƙara daban-daban gami abubuwa, kamar chromium, molybdenum, nickel, da dai sauransu Wadannan su ne wasu na kowa wakilin gami sumul karfe bututu kayan:

ASTM A335P jerin:

P5: P5 karfe bututu ƙunshi 5% chromium da 0.5% molybdenum, yana da kyau hadawan abu da iskar shaka juriya da kuma high zafin jiki ƙarfi, kuma ana amfani da sau da yawa a high zafin jiki tururi bututu da petrochemical masana'antu.
P9: P9 karfe bututu ya ƙunshi 9% chromium da 1% molybdenum, yana da mafi girma hadawan abu da iskar shaka juriya da kuma lalata juriya fiye da P5, kuma ya dace da high zafin jiki da kuma high matsa lamba yanayi.
P11: P11 karfe bututu ya ƙunshi 1.25% chromium da 0.5% molybdenum, yana da m m yi, kuma ana amfani da ko'ina a high zafin jiki boilers da zafi musayar.
P22: P22 bututun karfe ya ƙunshi 2.25% chromium da 1% molybdenum, yana da ƙarfin zafin jiki mai ƙarfi da juriya na iskar shaka, kuma ana amfani dashi sau da yawa a cikin babban zafin jiki da bututun matsa lamba a cikin masana'antar wutar lantarki da masana'antar petrochemical.
P91: P91 karfe bututu ne mai babban chromium da babban molybdenum karfe, dauke da 9% chromium da 1% molybdenum, kuma ya ƙunshi adadin vanadium da nitrogen. Yana da tsananin zafin zafin jiki da ƙarfi mai rarrafe kuma ana amfani dashi ko'ina a cikin masana'antar wutar lantarki mai ƙarfi da ultra-supercritical.
ASTM A213T jerin:

T11: T11 bututun karfe yana dauke da 1.25% chromium da 0.5% molybdenum, kwatankwacin P11, kuma an fi amfani dashi a cikin manyan masu musayar zafi da tukunyar jirgi.
T22: T22 karfe bututu ya ƙunshi 2.25% chromium da 1% molybdenum, dace da high zafin jiki da kuma high matsa lamba yanayi, kuma ana amfani da ko'ina a cikin wutar lantarki da kuma petrochemical masana'antu.
T91: T91 karfe bututu iri daya ne da P91, dauke da 9% chromium da 1% molybdenum, kuma ya ƙunshi vanadium da nitrogen. Yana da kyakkyawan ƙarfin zafin jiki mai ƙarfi da juriya mai rarrafe kuma ya dace da shuke-shuken wutar lantarki na supercritical da ultra-supercritical.
TS EN 10216-2:
10CrMo9-10: Wannan ƙaƙƙarfan bututun ƙarfe ne na Turai wanda ke ɗauke da chromium da molybdenum, tare da kyakkyawan ƙarfin zafin jiki da juriya na lalata, wanda aka saba amfani dashi a cikin masana'antar wutar lantarki da masana'antar petrochemical.
Alloy sumul karfe bututu ƙwarai inganta m yi na karfe bututu ta ƙara musamman gami abubuwa zuwa karfe, kuma sun dace da daban-daban matsananci yanayin aiki. P jerin da T jerin high chromium da high molybdenum karfe bututu, kamar P91 da T91, wakiltar ci gaban shugabanci na zamani high zafin jiki da kuma high matsa lamba kayan da ake amfani da ko'ina a supercritical da matsananci-supercritical ikon shuke-shuke. Zaɓin kayan aikin bututun da ya dace ba zai iya tabbatar da aminci da kwanciyar hankali na aikin ba, amma har ma inganta rayuwar sabis da ingancin kayan aiki.