Dimensional Tolerances

Nominal dimensions (mm)

• B and H: ±  0,5 %
  with minimum ± 0,20 mm
• B and H: ±  0,5 %
  with maximum ± 0,75 mm

D, d (mm)

0 - 10
10 - 20
20 - 50
50 - 100
100 -

D

± 0,20
± 0,30
± 0,35
± 0,40
± 0,45

d

± 0,20
± 0,30
± 0,35
± 0,40
± 0,45

Thickness

0 - 2
2 - 5
5 - 10
10 -

T₁

± 0,15
± 0,20
± 0,35
± 0,45

T₂

± 0,30
± 0,35
± 0,45
± 0,50

Tolerance (B and H are overall
breadth and height dimensions)

• D < 0,002 x L² for sections
  with B or H < 50 mm

• D < 0,001 x L² for sections with B or H ≥ 50 mm and
  < 100 mm

• D < 0,0005 x L² for sections
  with B or H ≥ 100 mm

• V < 1,5° per metre maximum
  for thickness < 5 mm
• V < 1,0° per metre maximum
  for thickness ≥ 5 mm