Chartes - CHARTE DE CONVERSION DE DURETÉ
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Rockwell

Rockwell Superficial

Brinell

Vickers

Shore

 

A

B

C

D

E

F

15-N

30-N

45-N

30-T

3000 kg

500 kg

136

 

Approx Tensile Strength (psi)

60kg Brale

100kg 1/16" Ball

150kg Brale

100kg Brale

100kg 1/8" Ball

60kg 1/16" Ball

15kg Brale

30kg Brale

45kg Brale

30 kg 1/16" Ball

10mm Ball Steel

10mm Ball Steel

Diamond Pyramid

Sciero-scope

75.9

117

50

63.1

---

---

85.5

68.5

55.0

---

475

---

513

67

233,000

75.2

117

49

62.1

---

---

85.0

67.6

53.8

---

464

---

498

66

227,000

74.7

116

48

61.4

---

---

84.5

66.7

52.5

---

451

---

484

64

221,000

74.1

116

47

60.8

---

---

83.9

65.8

51.4

---

442

---

471

63

217,000

73.6

115

46

60.0

---

---

83.5

64.8

50.3

---

432

---

458

62

212,000

73.1

115

45

59.2

---

---

83.0

64.0

49.0

---

421

---

446

60

206,000

72.5

114

44

58.5

---

---

82.5

63.1

47.8

---

409

---

434

58

200,000

72.0

113

43

57.7

---

---

82.0

62.2

46.7

---

400

---

423

57

196,000

71.5

113

42

56.9

---

---

81.5

61.3

45.5

---

390

---

412

56

191,000

70.9

112

41

56.2

---

---

80.9

60.4

44.3

---

381

---

402

55

187,000

70.4

112

40

55.4

---

---

80.4

59.5

43.1

---

371

---

392

54

182,000

69.9

111

39

54.6

---

---

79.9

58.6

41.9

---

362

---

382

52

177,000

69.4

110

38

53.8

---

---

79.4

57.7

40.8

---

353

---

372

51

173,000

68.9

110

37

53.1

---

---

78.8

56.8

39.6

---

344

---

363

50

169,000

68.4

109

36

52.3

---

---

78.3

55.9

38.4

---

336

---

354

49

165,000

67.9

109

35

51.5

---

---

77.7

55.0

37.2

---

327

---

345

48

160,000

67.4

108

34

50.8

---

---

77.2

54.2

36.1

---

319

---

336

47

156,000

66.8

108

33

50.0

---

---

76.6

53.3

34.9

---

311

---

327

46

152,000

66.3

107

32

49.2

---

---

76.1

52.1

33.7

---

301

---

318

44

147,000

65.8

106

31

48.4

---

---

75.6

51.3

32.5

---

294

---

310

43

144,000

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