Bending Strap to Angles Greater than 90°

[Frank S]

Marv if the bend angle needs to be spot on then it should be bent with a forming die and punch which can have the angle preset
most guys will hardly ever need to bend anything much thicker than 3/8" or 10 mm even when bending narrow strips for brackets.
grain orientation is not normally a factor in bends from 1 to 90° after the bend angle surpasses the 100° mark to a full fold of 180° the thicker the material the greater the importance of grain orientation becomes a one point on thicker metals it becomes necessary to normalize the bend area by annealing the material
Note the name of this thread can be confusing to some as the accepted way to describe a bend angle is taken from the plane of the base material starting with Zero ° angle up to 90° what some may think of as a 135° angle is actually a 45° angle a true 135° angle would be that which has been bent 45° past 90° true.