国家标准硬度转换换算表

D=10mm D=10mm P=30000N 时的压痕直径mm

P=30000N 时的压痕直径mm

HB

HV维氏HRB

HRC

HRA

HB HV维氏2.278012207289 4.052232212.2574511146987 4.12172172.371210216785 4.152122132.356829406584 4.22072092.46538676383 4.252012012.45 627 803

61 82 4.30 197 1972.56017465981 4.351921902.555786945880 4.41871862.65556495679 4.451831832.655346065478 4.5179179 2.70 514 587 52 77 4.55 174 1742.754955545176 4.61711712.84775344976 4.651651652.854615024875 4.71621622.944447447 74 4.75159159 2.954294604573 4.815615434154354473 4.851521523.054014234372 4.91491493.138******** 4.951461473.1537569040715143144

3.23633803970 5.051403.253523613869 5.11373.33413443769 5.151343.353313333668 5.21313.43213203568 5.25128 3.453113123467 5.31263.53023053367 5.351233.552932913166 5.41213.62852853066 5.451183.65 277278

2965 5.51163.7269272 28 65 5.55 1143.752622612764 5.61113.82552551002664 5.71073.85248250 992563 5.81033.924124698

2463 5.999 3.95 235 235 23 62 6.00

99.5

4

225

226

22

62

硬 度

硬

硬 度

HRB HRC HRA

972161

972061

961960

951860

9459

93 58

9258

9157

8956

8856

87 55

8655

8554

8453

8353

8252

8152

8051

7850

7750

76

75

74

72

71

69

69

67

66

65

64

62

59

57

54

52