Ishubhu ye-alloy iwuhlobo lweshubhu yensimbi engenamthungo, ehlukaniswe ngamashubhu esakhiwo angenamthungo kanye neshubhu ye-alloy ephikisana nokushisa okuphezulu. Ihluke kakhulu emazingeni okukhiqiza kanye nemboni yamashubhu e-alloy, amashubhu e-alloy anealed kanye ne- tempered ashintsha izakhiwo zemishini. Hlangana nemibandela yokucubungula edingekayo. Ukusebenza kwayo kuphakeme kunokwepayipi elivamile lensimbi elingenamthungo, ukwakheka kwamakhemikhali kuqukethe i-Cr eyengeziwe, ngakho inokumelana nokushisa okuphezulu, ukumelana nokushisa okuphansi nokumelana nokugqwala. Amashubhu e-carbon angenamthungo ajwayelekile awanayo ingxubevange noma inani elincane lengxubevange. I-alloy tube isetshenziswa kabanzi ku-petroleum, i-aerospace, amakhemikhali, amandla kagesi, i-boiler, ezempi nezinye izimboni, ngoba izakhiwo zemishini ye-alloy tube ziyahlukahluka, kulula ukuzilungisa.

Ipayipi lensimbi ye-alloy lisetshenziswa kakhulu embonini yamandla, isikhungo samandla enuzi, i-boiler enengcindezi ephezulu, izinga lokushisa eliphakeme kakhulu, i-reheater kanye nokunye ukucindezela okuphezulu kanye namapayipi okushisa aphezulu kanye nemishini. Yenziwe ngensimbi yekhwalithi ephezulu ye-carbon steel, i-alloy structural steel kanye nensimbi engagqwali engashi ngokugoqeka okushisayo (ukukhipha, ukunwetshwa) noma ukugoqa okubandayo (umdwebo).