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HRC to Vickers Hardness Conversion Chart

In this blog post, you’ll read:When testing the hardness of a material, you may need to convert your test results from one scale to another. There are many ways to convert hardness measurements from one scale to another, but this HRC to Vickers hardness conversion guide will make it simple.

Table of Contents

When testing the hardness of a material, you may need to convert your test results from one scale to another. For example, if you are using the Rockwell hardness test on a metal part, you need to convert your test results from the Rockwell scale to the Vickers scale. Various scales are used when measuring the hardness of materials because each has advantages depending on the properties of the material being evaluated. There are many ways to convert hardness measurements from one scale to another, but this HRC to Vickers hardness conversion guide will make it simple.

 

HRC to Vickers Hardness

I. What is HRC in Hardness?

HRC stands for Rockwell Hardness C scale. It is a scale that measures the resistance of materials to indentation. The harder the material, the greater the resistance to be indented or otherwise damaged. Rockwell hardness is measured on the Rockwell scale, which ranges from 0 to 68. HRC of a material is calculated by taking the score obtained in the Rockwell scale and translating it to another unit.

II. What is Vickers Hardness?

The Vickers Hardness test is a microhardness test used to measure an indentation made on a test material using a diamond indenter and a light load. The indent made is measured using a microscope and converted to a hardness scale. The Vickers hardness test is used on materials that are well polished to make it easier for measurements to be taken. 

 

Related Article: Hardness Test Comparison: Vickers vs Rockwell

Related Article: What is the Difference between Rockwell, Brinell, and Vickers?

III. HRC to Vickers Hardness Conversion Chart

HRC(Rockwell C Scale)

Vickers (HV)

68

940

67

900

66

865

65

832

64

800

63

772

62

746

61

720

60

697

59

674

58

653

57

633

56

613

55

595

54

577

53

560

52

544

51

528

50

513

49

498

48

484

47

471

46

458

45

446

44

434

43

423

42

412

41

402

40

392

39

382

38

372

37

363

36

354

35

345

34

336

33

327

32

318

31

310

30

302

29

294

28

286

27

279

26

272

25

266

24

260

23

254

22

248

21

243

20

238

18

230

16

222

14

213

12

204

  (10

196

8

188

6

180

4

173

2

166

0

160

Conclusion

The Vickers hardness test measures the indentation depth or the minimum depth of a test mark made by a diamond stylus. The measurement is then converted to hardness value using the percent obtained for each area of diamond penetration in the Vickers Hardness Scale.

You should use the HRC to Vickers hardness conversion chart above to convert a value from the Rockwell scale to the Vickers scale. This will make it easy to determine a material’s hardness in both measurement scales.