○ 鋼洛氏C硬度之近似換算表 Approximate relationship between the various hardness scales

(HRC)

洛氏硬度C刻度
Rockwell HardnessC-scale 150kg

(HV)微小硬度
Diamond Pyramid Hardness Number Vickers

布魯式硬度(HB)10mm球荷重29.42kN

Brinell Hardness 29.42kN

洛氏硬度
Rockwell Hardness

洛氏表面硬度鉆石圓錐壓子
Rockwell Hardness

(HS)

蕭氏硬度
Shore Scleroscope Hardness Number

抗拉強度N/mm2
Approx TensileStrengthN/mm2

(HRC)

洛氏硬度刻度
Rockwell HardnessC scale 150kg

標準球
Standard 10mm ball

Hultgren球
Hultgren10mm ball

超硬合金鋼球
Tungstencarbide 10mm

(HRA)A刻度荷重588.4N 鉆石圓錐壓子
A scale 60kg

(HRB)B刻度荷重980.7N 直徑1/16球
B scale 100kg1/16inch ball

(HRD)D刻度荷重980.7N 鉆石圓錐壓子
D scale 100kg

15N刻度荷重
147.1N Superficial15N

30N刻度荷重
294.2N Superficial30N

45N刻度荷重
441.3N Superficial45N

68

940

-

-

-

85.6

-

76.9

93.2

84.4

75.4

97

-

68

67

900

-

-

-

85.0

-

76.1

92.9

83.6

74.2

95

-

67

66

865

-

-

-

84.5

-

75.4

92.5

82.8

73.3

92

-

66

65

832

-

-

739

83.9

-

74.5

92.2

81.9

72.0

91

-

65

64

800

-

-

722

83.4

-

73.8

91.8

81.1

71.0

88

-

64

63

772

-

-

705

82.8

-

73.0

91.4

80.1

69.9

87

-

63

62

746

-

-

688

82.3

-

72.2

91.1

79.3

68.8

85

-

62

61

720

-

-

670

81.8

-

71.5

90.7

78.4

67.7

83

-

61

60

697

-

613

654

81.2

-

70.7

90.2

77.5

66.6

81

-

60

59

674

-

599

634

80.7

-

69.9

89.8

76.6

65.5

80

-

59

58

653

-

587

615

80.1

-

69.2

89.3

75.7

64.3

78

-

58

57

633

-

575

595

79.6

-

68.5

88.9

74.8

63.2

76

-

57

56

613

-

561

577

79.0

-

67.7

88.3

73.9

62.0

75

-

56

55

595

-

546

560

78.5

-

66.9

87.9

73.0

60.9

74

2079

55

54

577

-

534

543

78.0

-

66.1

87.4

72.0

59.8

42

2010

54

53

560

-

519

525

77.4

-

65.4

86.9

71.2

58.6

71

1952

53

52

544

500

508

512

76.8

-

64.6

86.4

70.2

57.4

69

1883

52

51

528

487

494

496

76.3

-

63.8

85.9

69.4

56.1

68

1824

51

50

513

475

481

481

75.9

-

63.1

85.5

68.5

55.0

67

1755

50

49

498

464

469

469

75.2

-

62.1

85.0

67.6

53.8

66

1687

49

48

484

451

455

455

74.7

-

61.4

84.5

66.7

52.5

64

1638

48

47

471

442

443

443

74.1

-

60.8

83.9

65.8

51.4

63

1579

47

46

458

432

432

432

73.6

-

60.0

83.5

64.8

50.3

62

1530

46

45

446

421

421

421

73.1

-

59.2

83.0

64.0

49.0

60

1481

45

44

434

409

409

409

72.5

-

58.5

82.5

63.1

47.8

58

1432

44

43

423

400

400

400

72.0

-

57.7

82.0

62.2

46.7

57

1383

43

42

412

390

390

390

71.5

-

56.9

81.5

61.3

45.5

56

1334

42

41

402

381

381

381

70.9

-

56.2

80.9

60.4

44.3

55

1294

41

40

392

371

371

371

70.4

-

55.4

80.4

59.5

43.1

54

1245

40

39

382

362

362

362

69.9

-

54.6

79.9

58.6

41.9

52

1216

39

38

372

353

353

353

69.4

-

53.8

79.4

57.7

40.8

51

1177

38

37

363

344

344

344

68.9

-

53.1

78.8

56.8

39.6

50

1157

37

36

354

336

336

336

68.4

(109.0)

52.3

78.3

55.9

38.4

49

1118

36

35

345

327

327

327

67.9

(108.5)

51.5

77.7

55.0

37.2

48

1079

35

34

336

319

319

319

67.4

(108.0)

50.8

77.2

54.2

36.1

47

1059

34

33

327

311

311

311

66.8

(107.5)

50.0

76.6

53.3

34.9

46

1030

33

32

318

301

301

301

66.3

(107.0)

49.2

76.1

52.1

33.7

44

1000

32

31

310

294

294

294

65.8

(106.0)

48.4

75.6

51.3

32.5

43

981

31

30

302

286

286

286

65.3

(105.5)

47.7

75.0

50.4

31.3

42

951

30

29

294

279

279

279

64.7

(104.5)

47.0

74.5

49.5

30.1

41

932

29

28

286

271

271

271

64.3

(104.0)

46.1

73.9

48.6

28.9

41

912

28

27

279

264

264

264

63.8

(103.0)

45.2

73.3

47.7

27.8

40

883

27

26

272

258

258

258

63.3

(102.5)

44.6

72.8

46.8

26.7

38

863

26

25

266

253

253

253

62.8

(101.5)

43.8

72.2

45.9

25.5

38

843

25

24

260

247

247

247

62.4

(101.0)

43.1

71.6

45.0

24.3

37

824

24

23

254

243

243

243

62.0

100.0

42.1

71.0

44.0

23.1

36

804

23

22

248

237

237

237

61.5

99.0

41.6

70.5

43.2

22.0

35

785

22

21

243

231

231

231

61.0

98.5

40.9

69.9

42.3

20.7

35

775

21

20

238

226

226

226

60.5

97.8

40.1

69.4

41.5

19.6

34

755

20

(18)

230

219

219

219

-

96.7

-

-

-

-

33

736

(18)

(16)

222

212

212

212

-

95.5

-

-

-

-

32

706

(16)

(14)

213

203

203

203

-

93.9

-

-

-

-

31

677

(14)

(12)

204

194

194

194

-

92.3

-

-

-

-

29

647

(12)

(10)

196

187

187

187

-

90.7

-

-

-

-

28

618

(10)

(8)

188

179

179

179

-

89.5

-

-

-

-

27

598

(8)

(6)

180

171

171

171

-

87.1

-

-

-

-

26

579

(6)

(4)

173

165

165

165

-

85.5

-

-

-

-

25

549

(4)

(2)

166

158

158

158

-

83.5

-

-

-

-

24

530

(2)

(0)

160

152

152

152

-

81.7

-

-

-

-

24

520

(0)

○表中括弧( )內之數字為不常使用之範圍僅提示參考
○本表為SAE 417摘錄
•In above table numbers in parenthesis are only for reference
•This table is abstracted from SAEJ 417