里氏硬度与布氏、洛氏、维氏硬度的换算误差见下表(E=210000N/mm2)
**里氏硬度计**布氏、洛氏、维氏硬度换算误差
414-531HL150-250HB±13HB
504-605HL25-35HRC±2HRC
642-721HL40-50HRC±2HRC
767-860HL55-65HRC±2HRC
647-712HL400-500HV±20HV
**常用冲击装置D/DC的标定及测量范围：**
冲击装置D、DC
HRCHRBHBHVHSD
STEELandcaststeel钢和铸钢17.9-68.559.6-99.6127-65183-97632.2-99.5
Steel锻钢\\143-650\\
SWT.ST合金工具钢20.4-67.1\\80-898\
Stainlesssteel不锈钢\46.5-101.785-65585-802\
GC.IRON灰铸铁\\93-33480-898\
NC.IRON球墨铸铁\\131-387\\
C.ALUM铸铝合金\23.8-84.619-164\\
BRASS(黄铜)铜锌合金\13.5-95.340-173\\
BRONZE(青铜)铜锡/铝合金\\60-290\\
COPPER纯铜\\45-315\
**里氏硬度计**布氏、洛氏、维氏硬度换算误差
414-531HL
504-605HL
642-721HL
767-860HL
647-712HL
150-250HB
25-35HRC
40-50HRC
55-65HRC
400-500HV
±13HB
±2HRC
±2HRC
±2HRC
±