W
t
C
a1
b1
a2
b2
e1/e2
f1/f2

 

=width or diameter of the holes
=centre distance of the holes
=bridge
=width of the panel
=length of the panel
=width of the perforated zone
=length of the perforated zone
=non perforated zone in longitudinal direction
=non perforated zone in transverse direction

DIN/EN/ISO 24043

diameter of the hole

centre distance

free area

material thickness

W

t

Ao%

0,5

0,75

1,0

1,5

2,0

2,5

3,0

4,0

5,0

6,0

2,5

5,0

19,5

 s

s

s

4,0

10,5

11,5

s

s

s

5,0

10,0

19,5

s

s

s

6,3

12,0

21,5

s

s

s

8,0

14,0

25,5

 s

 s

 s

s

10,0

18,0

24,0

 s

 s

 s

s

s

15,0

25,0

28,0

 s

 s

 s

 s