Hardness Conversion Table

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Brinell Hardness

Rockwell Hardness

 

Tungsten Carbide Ball 3000 KG

A Scale 60 kg

B Scale 100 kg

C Scale 150 kg

Tensile Stength (approx.)

-

86

-

68

-

-

85

-

68

-

-

85

-

67

-

767

85

-

66

-

757

84

-

66

-

745

84

-

65

-

733

84

-

65

-

722

83

-

64

-

712

-

-

-

-

710

83

-

63

-

698

83

-

62

-

684

82

-

62

-

682

82

-

62

-

670

82

-

61

-

656

81

-

60

-

653

81

-

60

-

647

81

-

60

-

638

81

-

59

329,000

630

81

-

59

324,000

627

80

-

59

323,000

601

80

-

57

309,000

578

79

-

56

297,000

555

78

-

55

285,000

534

78

-

54

274,000

514

77

-

52

263,000

495

76

-

51

253,000

477

76

-

50

243,000

461

75

-

48

235,000

444

74

-

47

225,000

429

73

-

46

217,000

415

73

-

44

210,000

401

72

-

43

202,000

388

71

-

42

195,000

375

71

-

40

188,000

363

70

-

39

182,000

352

69

-

38

176,000

341

69

-

37

170,000

331

68

-

36

166,000

321

68

-

34

160,000

311

67

-

33

155,000

302

66

-

32

150,000

293

66

-

31

145,000

285

65

-

30

141,000

277

65

-

29

137,000

269

64

-

28

133,000

262

64

-

27

129,000

255

63

-

25

126,000

248

62

-

24

122,000

241

62

100

23

118,000

235

61

99

22

115,000

229

61

98

20

111,000

223

-

97

20

-

217

-

96

18

105,000

212

-

96

17

102,000

207

-

95

16

100,000

201

-

94

15

98,000

197

-

93

-

95,000

192

-

92

-

93,000

187

-

91

-

90,000

183

-

90

-

89,000

179

-

89

-

87,000

174

-

88

-

85,000

170

-

87

-

83,000

167

-

86

-

81,000

163

-

85

-

79,000

156

-

83

-

76,000

149

-

81

-

73,000

143

-

79

-

71,000

137

-

76

-

67,000

131

-

74

-

65,000

126

-

72

-

63,000

121

-

70

-

60,000

116

-

68

-

58,000

111

-

66

-

56,000

Note: This Technical Data is taken from various Technical Books & is only as an advise to users. Users are requested to take proper guidance before basing any technical calculation on the above technical data. Mtlexs.com, or its Promoter, Directors, employees will in no way be responsible for any losses, damage etc. in any manner whatsoever.
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Nominal Compositions
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View Technical Specifications for   :   [  Copper ]    [  Brass ]    [  Cupro Nickel ]    [  Aluminium ]    [  Zinc ]    [  Lead ]    [ ASTM Standards ]

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