Hardness Conversion


Brinell Hardness

Rockwell Hardness

Tensile Strength

Tungsten Carbide
Ball 3000 KG

A Scale 60KG

B Scale 100KG

C Scale 150KG

(Approx.)

–

85.6

–

68.0

–

–

85.3

–

67.5

–

–

85.0

–

67.0

–

767

84.7

–

66.4

–

757

84.4

–

65.9

–

745

84.1

–

65.3

–

733

83.8

–

64.7

–

722

83.4

–

64.0

–

712

–

–

–

–

710

83.0

–

63.3

–

698

82.6

–

62.5

–

684

82.2

–

61.8

–

682

82.2

–

61.7

–

670

81.8

–

61.0

–

656

81.3

–

60.1

–

653

81.2

–

60.0

–

647

81.1

–

59.7

–

638

80.8

–

59.2

329,000

630

80.6

–

58.8

324,000

627

80.5

–

58.7

323,000

601

79.8

–

57.3

309,000

578

79.1

–

56.0

297,000

555

78.4

–

54.7

285,000

534

77.8

–

53.5

274,000

514

76.9

–

52.1

263,000

495

76.3

–

51.0

253,000

477

75.6

–

49.6

243,000

461

74.9

–

48.5

235,000

444

74.2

–

47.1

225,000

429

73.4

–

45.7

217,000

415

72.8

–

44.5

210,000

401

72.0

–

43.1

202,000

388

71.4

–

41.8

195,000

375

70.6

–

40.4

188,000

363

70.0

–

39.1

182,000

352

69.3

–

37.9

176,000

341

68.7

–

36.6

170,000

Brinell Hardness

Rockwell Hardness

Tensile Strength

Tungsten Carbide Ball 3000 KG

A Scale 60KG

B Scale 100KG

C Scale 150KG

(Approx.)

331

68.1

–

35.5

166,000

321

67.5

–

34.3

160,000

311

66.9

–

33.1

155,000

302

66.3

–

32.1

150,000

293

65.7

–

30.9

145,000

285

65.3

–

29.9

141,000

277

64.6

–

28.8

137,000

269

64.1

–

27.6

133,000

262

63.6

–

26.6

129,000

255

63.0

–

25.4

126,000

248

62.5

–

24.2

122,000

241

61.8

100.0

22.8

118,000

235

61.4

99.0

21.7

115,000

229

60.8

98.2

20.5

111,000

223

–

97.3

20.0

–

217

–

96.4

18.0

105,000

212

–

95.5

17.0

102,000

207

–

94.6

16.0

100,000

201

–

93.8

15.0

98,000

197

–

92.8

–

95,000

192

–

91.9

–

93,000

187

–

90.7

–

90,000

183

–

90.0

–

89,000

179

–

89.0

–

87,000

174

–

87.8

–

85,000

170

–

86.8

–

83,000

167

–

86.0

–

81,000

163

–

85.0

–

79,000

156

–

82.9

–

76,000

149

–

80.8

–

73,000

143

–

78.7

–

71,000

137

–

76.4

–

67,000

131

–

74.0

–

65,000

126

–

72.0

–

63,000

121

–

69.8

–

60,000

116

–

67.6

–

58,000

111

–

65.7

–

56,000