Sides

Test indentation

Indentation diameter

Average

Measured HB

d1

d2

Outer surface

1

1.55

1.552

1.55

89

2

1.448

1.45

1.45

103

3

1.55

1.55

1.55

89

4

1.4

1.4

1.4

111

5

1.4

1.43

1.415

110

6

1.4

1.4

1.4

111

Inner surface

1

1.55

1.45

1.5

95.5

2

1.45

1.447

1.449

103

3

1.44

1.45

1.445

101

4

1.45

1.45

1.45

103

5

1.46

1.45

1.455

102

6

1.45

1.47

1.46

102