Perforated sheet metal fratelli mariani spa

We have available in stock consistent quantities of sheets in standard commercial size 1000 x2000 mm, thicknesses from 0,3 mm up to 10 mm and perforation from 0,3 mm up to 100 mm. Perforation range: round,square and rectangular holes.
Usually holes diameter can not be lower than thickness.

Usually the round holes layout is at 60°. Squared and rectangular holes, instead, are aligned.

Calculation of 1 Sq.M. weight:
ps = absolute (specific) weight (Kg)
v/p = open area (%)
s = thickness mm
kg = [s*ps*(100-v/p)]/100

Open area calculation when holes 60° staggered:
V/p = open area (%)
D = holes diameter (mm)
P = holes pitch (mm)
v/p = (D2*90,7)/p2

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