HRA
HRC HRA HRC HRA HRC HRA HRC 86.6
70.0103778.555.059937070.540.037726928.027486.3
69.5101778.254.558936570.339.537226627.527186.1
69.099777.954.057936070.039.036726327.026885.8
68.597877.753.557035538.536226026.526485.5
68.095977.453.056135038.035125726.026185.2
67.594177.152.555134537.535225425.525885.0
67.092376.952.054334137.034725125.025584.7
66.590676.651.553433636.534224824.525284.4
66.088950176.351.052533236.033824524.024984.1
65.587249476.150.551732735.533324223.524683.9
65.085648875.850.050932335.032924023.024383.6
64.584048175.549.550131834.532423722.524083.3
64.082547475.349.049331434.032023422.023783.1
63.581046875.048.548531033.531623221.523482.8
63.079546174.748.047830633.031222921.023182.5
62.578045574.547.547030232.530822720.522982.2
62.076644974.247.046329832.030422520.022682.0
61.575244273.946.545629431.530022219.522381.7
61.073943673.746.044929131.029622019.022181.4
60.572643073.445.544328730.529221818.521881.2
60.071342473.245.043628330.028921618.021680.9
59.570041872.944.542928029.528521417.521480.6
59.068841372.644.042327629.028121117.021180.3
58.567640772.443.541727328.527880.1
58.066440172.143.041179.8
57.565339671.842.540579.5
57.064239171.642.039979.3
56.563138571.341.539379.0
56.062038071.141.038878.755.560937570.840.5382黑色金属材料 硬度值换算表
布氏硬度
HB 洛氏硬度
维氏硬度HV 布氏硬度HB 洛氏硬度维氏硬度HV 布氏硬度HB 维氏硬度HV 注:1.布氏硬度:主要用来测定铸件、锻件、有色金属制件、热轧坯料及退火件的硬度,测定范围≯HB450。

2.洛氏硬度:HRA 主要用于高硬度试件,测定硬度高于HRC67以上的材料和表面硬度,如硬质合金、氮化钢等，测定范围HRA>70。

HRC 主要用于钢制件(如碳钢、工具钢、合金钢等）淬火或回火后的硬度测定,测定范围HRC20~67。

3.维氏硬度:用来测定薄件和钢板制件的硬度,也可用来测定渗碳、氰化、氮化等表面硬化制件的硬度。

洛氏硬度维氏硬度HV 布氏硬度HB 洛氏硬度。