Ukwenzela ukuphucula ukusebenza kwe-thermal ye-teeay pipeling ye-team ye-teipe yesityalo samandla, amaqondo obushushu e-reheat anokuyilwa ukuba ngu-621, oko kukuthi, ubushushu obukhulu. I-United States yaqala i-ATTM A335 P92 ALTIDY intsimbi ngasekupheleni kweminyaka yee-1980 ukuya kudibana neemfuno zokuxhathisa ubushushu ngeli sityalo siphezulu sombane. I-Aloby Steel P92 yinguqulelo ephuculweyo ye-ASTM A335 P91 ALTRICS ye-Tungsten, i-Niobium, inciphise umlinganiso we-\ / kwaye ilawulwa ngononophelo kwi-\ / kwaye ilawulwa ngononophelo kwi-nitrogen kunye ne-nitrogen yomxholo we-netrogen.
I-alloy synges
Ngenxa yokuqulunqwa kwemichiza ye-molybdenum (mo) kunye neChromium (CR), i-A335 idla ngokubizwa ngokuba yiChromium Mlybdenum Tube. I-MolybDenum inyusa amandla entsimbi kunye nomda we-elastiki, nxiba ukunganyangeki, umgangatho wempembelelo kunye noxinzelelo. I-MolybDenum inyusa ukumelana nokuthambisa, ithintele ukukhula kweenkozo, kwaye iyenza i-chromium yentsimbi engafikeleli emgceni. I-Molybdenum yeyona nto isebenzayo eyongeziweyo yokuphucula amandla aphezulu amaqondo aphezulu. Ikwandise ukuxhathisa i-corrosion yensimbi kwaye kuthintela ukubonakala. I-Chromium (okanye i-chrome) yinxalenye esisiseko yentsimbi engenasimo. Nayo nayiphi na intsimbi ene-12% okanye ngaphezulu iChromium ithathwa njengentsimbi engenasiseko. I-Chromium iphantse ingenakufane ngokuchasene nokuxhathisa kwi-oxidation kwiqondo lobushushu eliphezulu. I-Chromium inyusa i-tedile, isivuno kunye nobunzima kubushushu begumbi.