The properties of the steel casting
Author: Date: 2015-10-15 9:12:13
The properties of the steel casting itself directly affect the quality of machining,the hardness value of steel casting and other casting processing is an important indicator.
1. The vickers hardness: used to determine the hardness and steel parts of the thin,also can be used to determination of carburizing,cyaniding,nitriding,etc. The hardness of surface hardening..
2. Rockwell hardness: HRA is mainly used for high hardness of the specimen,determine the material and surface hardness hardness is higher than HRC67 above,such as cemented carbide,nitride steel,HRA measurement range > HRC is mainly used for steel parts (such as carbon steel,tool steel,alloy steel,etc.) after quenching,or tempering hardness measurement,measuring range HRC20 ~ 67.
3. Brinell hardness: mainly used for determination of casting,forging,non-ferrous metal parts,hot rolling billet and annealing hardness,measurement range ≯ HB450