Forming capability of a strip steel determines the severity of bends it can withstand during part production. In order to avoid a borderline situation where a tight bend might involve fracturing, the manufacturer can often increase the bend radius slightly and lessen the bending stresses generated.
At the specifying stage, it is the specification writer's responsibility to assure sufficient formability for required bends, by controlling strip hardness and/or radii of bends.
Minimum 90° bend radii
AISI 1050 strip
longitudinal and transverse bends