The sinking roller has great applications in the steel, petroleum, chemical, metallurgy, machinery, electric power, pharmaceutical and other industries. The main material grades used in sunken rolls are as follows: 
ZG4Cr9Si2        ZG1Cr18Ni9Ti
ZG2Cr24Ni7Si2      ZG1Cr20N14Si2
ZG2Cr25Ni20Si2      ZG4Cr25Ni20Si2
ZG3Cr18Mn12Si2N     ZG3Cr22Mn4Ni4Si2N
ZG3Cr30Ni11N       ZG3Cr24Ni7SiN