Rockwell Minimum Thickness

The Minimum Thickness for Rockwell Scale

(ISO 6508-1:2005(E))

The minimum thickness of the test piece, or of the layer under test, is given in Figures B.1, B.2 and B.3

Rockwell thickness 1

Key:

X Rockwell Hardness

Y Minium thickness of the test piece, mm

Figure B.1 – Test with diamond cone indenter (scales A, C and D)

Rockwell thickness 2

Key:

X Rockwell Hardness

Y Minium thickness of the test piece, mm

Figure B.2- Test witn ball indenters (scales B, E, F, G, H and K)

Rockwell thickness 3

Key:

X Rockwell Hardness

Y Minium thickness of the test piece, mm

Figures B.3 – Rockwell Superficial test (scales N and T)