N˚

Manufacturer,

Thickness, mm

Average value

Standard deviation

Coefficient of variation

1

Arcelor-Mittal, 8, St3SP5

31.0

1.0

0.032

2

Arcelor-Mittal, 10, St3SP5

33.20

0.84

0.025

3

Arcelor-Mittal, 8, 09G2S

28.60

1.14

0.040

4

Arcelor-Mittal, 10, 09G2S

35.20

1.30

0.037

5

Amet, 20, St3SP5, SV

30.20

0.84

0.028

6

Amet, 20, 09G2S

29.80

0.84

0.028

7

Severstal, 10, St3SP5, SV

37.00

1.00

0.0027