X
Impact body
Energy (N*mm)
11
11
11
3
90
11
Mass (g)
5.5
7.8
7.3
3
20
5.5
Surface test piece requirements
Rugosity ISO
N7
N7
N7
N5
N9
N7
Rugos. RT (µm)
10
10
10
2.5
30
10
Rugos. RA (µm)
2
2
2
0.4
7
2
Minimum test piece weight (Kg)
Stand alone
5
5
5
1.5
15
5
With solid support
2
2
2
0.5
5
2
Coupled with
paste
0.1
0.1
0.1
0.02
0.5
0.1
Minimum test piece thickness (mm)
Coupled
3
3
3
1
10
3
Surface thickness
0.8
0.8
0.8
0.2
—
0.8
Test piece impact indentation
On parts up to 300HV
Diameter (mm)
0.54
0.38
1.03
0.54
Depth (µm)
24
12
53
24
On parts up to 600HV
Diameter (mm)
0.45
0.32
0.90
0.45
Depth (µm)
17
8
41
17
On parts up to 900HV
Diameter (mm)
0.35
0.30
—
0.35
Depth (µm)
10
7
—
10
