硬さ換算表(ロクウェルCスケールを基準にした近似値)

HRCHVHBロックウェル硬さロックウェルスーパーフィシャル硬さHSHRC
ロックウェルビッカースブリネル硬さHRAHRBHRD15-N30-N45-Nショア硬さロックウェル
Cスケール 標準球タングステンカーバイド球AスケールBスケールDスケールスケールスケールスケール Cスケール
68940--85.6-76.993.284.475.49768
67900--85.0-76.192.983.674.29567
66865--84.5-75.492.582.873.39266
65832-73983.9-74.592.281.972.09165
64800-72283.4-73.891.881.171.08864
            
63772-70582.8-73.091.480.169.98763
62746-68882.3-72.291.179.368.88562
61720-67081.8-71.590.778.467.78361
60697-64581.2-70.790.277.566.68160
59674-63480.7-69.989.876.665.58059
            
58653-61580.1-69.289.375.764.37858
57633-59579.6-68.588.974.863.27657
56613-57779.0-67.788.373.962.07556
55595-56078.5-66.987.973.060.97455
54577-54378.0-66.187.472.059.87254
            
53560-52577.4-65.486.971.258.67153
5254450051276.8-64.686.470.257.46952
5152848749676.3-63.885.969.456.16851
5051347548175.9-63.185.568.555.06750
4949846446975.2-62.185.067.653.86649
            
4848445145574.7-61.484.566.752.56448
4747144244374.1-60.883.965.851.46347
4645843243273.6-60.083.564.850.36246
4544642142173.1-59.283.064.049.06045
4443440940972.5-58.582.563.147.85844
            
4342340040072.0-57.782.062.246.75743
4241239039071.5-56.981.561.345.55642
4140238138170.9-56.280.960.444.35541
4039237137170.4-55.480.459.543.15440
3938236236269.9-54.679.958.641.95239
            
3837235335369.4-53.879.457.740.85138
3736334434468.9-53.178.856.839.65037
3635433633668.4109.052.378.355.938.44936
3534532732767.9108.551.577.755.037.24835
3433631931967.4108.050.877.254.236.14734
            
3332731131166.8107.550.076.653.334.94633
3231830130166.3107.049.276.152.133.74432
3131029429465.8106.048.475.651.332.54331
3030228628665.3105.547.775.050.431.34230
2929427927964.7104.547.074.549.530.14129
            
2828627127164.3104.046.173.948.628.94128
2727926426463.8103.045.273.347.727.84027
2627225825863.3102.544.672.846.826.73826
2526625325362.8101.543.872.245.925.53825
2426024724762.4101.043.171.645.024.33724
            
2325424324362.0100.042.171.044.023.13623
2224823723761.599.041.670.543.222.03522
2124323123161.098.540.969.942.320.73521
2023822622660.597.840.169.441.519.63420
18230219219-96.7----3318
            
16222212212-95.5----3216
14213203203-93.9----3114
12204194194-92.3----2912
10196187187-90.7----2810
8188179179-89.5----278
            
6180171171-87.1----266
4173165165-85.5----254
2166158158-83.5----242
0160152152-81.7----240