Alloy ígwè tube ntụpọ ihe: 12Cr1MoVG, 12CrMoG, 15CrMoG, 12CR2MO Na Cr5Mo & lt;A335P5> , Cr9Mo & lt;A335P9> , 10 cr9mo1vnb & lt;A335P91> , 15 nicumonb5 & lt;WB36>

Ụkpụrụ mmejuputaGB5310-1995, GB6479-2000,GB9948-2006 mmanụ ụgbọala mgbawa, DIN17175-79,ASTM SA335, ASTM SA213, JISG3467-88, JISG3458-88.

Ngwaahịa ndị a dabara maka oke okpomọkụ, obere okpomọkụ na corrosion na-eguzogide enweghị nkebi ígwè tubes na-eji mmanụ ala, kemịkalụ, ọkụ eletrik na ụlọ ọrụ ọkụ ọkụ.