The table below shows the flatness tolerances for AZ31B magnesium tooling plate.
Deviations from flat are determined by placing a straight edge placed on the surface of a plate and measuring the largest gap, if any, between the tool and the surface of the plate.
The data are based on standards developed by the Aluminum Association and ANSI.
|Deviation From Flat In Inches|
|In Any 1 Foot||In Any 6 Feet|
|> 0.250||<= 1000||0.005||0.003||0.015||0.007|