Tolerances

Tolerances of dished and flanged ends

Unless otherwise agreed, the following tolerances are observed in manufacturing:

Outside diameter D mm >< 600 >> 600
Largest permissible deviation in circumference, x D >± 3 mm >± 0,25%
>Greatest permissible circularity
D max - D min		 >(D+1200)/200
not exceeding 1% x D
>Greatest permissible deviation from nominal height >-0
+0.8 % x D
Minimum of + 10 mm


Tolerances of edge bevels

Unless otherwise agreed, the following dimensions and tolerances will be used:

  • angle of bevel 30° ± 2°
  • taper 1:4 (15°) + 0°/-3°
  • root face 2-3 mm ± 1 mm
  • thickness deviation permitted in taper varies according to the final thickness as follows:
>e < 5 mm >-0/+ 1 mm
>5 < e < 10 mm >-0/+ 1,5 mm
>10 < e < 25 mm >-0/+ 2 mm
e > 25 mm -0/+ 3 mm