Alloy ígwè tube ntụpọ ihe: 12Cr1MoVG, 12CrMoG, 15CrMoG, 12CR2MO <A335P22> 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 dị mma maka oke okpomọkụ, obere okpomọkụ na corrosion eguzogide enweghị nkebi ígwè tubes eji na mmanụ ala, chemical, eletriki na ụlọ ọrụ ji esi mmiri ọkụ.