3 ADVANTAGES OF PULTRUSION
High strength to weight ratio
Also known as specific strength, this is similar to the stiffness to weight ratio. This ratio allows you to compare materials of different mass for applications where resistance against breaking has priority.
High stiffness to weight ratio
Also known as specific stiffness, it allows materials of different mass to be compared quickly in rigidity-sensitive applications where weight is still a factor. Carbon fiber does extremely well in this area, being about 3 times stiffer than steel and aluminium for a given weight.
With all the fibers running unidirectionally, pultruded tubes take optimal advantage of this characteristic.
The ability to easily make tubes with specific wall-thicknesses
The inside diameter of a pultruded tube is determined by a mandrel, which is easy to exchange for a different sized one, making it easy to produce tubes with varying wall thickness.
Because of the low density of composites, they lend themselves to be machined well.