This standard specifies the dimensional tolerances of aluminium and aluminium alloy extruded profiles, including Linear dimensional tolerance of cross section, angle tolerance of cross section, tolerances of fillet radius and corner radius as well as tolerances of curve clearance, flexibility, plane clearance, twist degree, shearing slant and length.
This standard is applicable to aluminium and aluminium alloy extruded profiles.
2 Terms and Definitions
The following terms and definitions are applicable to this standard.
Circumscribing circle
The smallest circle to fully enclose the cross section of alloys, as shown in Figure 1.
