scope:

This European Standard specifies the tolerances on dimensions and form of aluminium and aluminium alloy forgings for general engineering applications of usual design concepts which are formed hot. It applies to : - die forgings without machining all over : shape dimensions n max - 2 000 mm, die closure dimensions t max - 600 mm and projected area A - 4 000 cm²; - die forgings with machining all over : shape dimensions n max - 6 000 mm and projected area A - 22 000 cm ²; - hand forgings : profile dimensions n max - 8 000 mm. Tolerances on forgings outside the scope of this standard or of complex design can be mutually agreed between supplier and purchaser. Design guidelines for die and hand forgings are given in annex A.