Since, there are mulitple suppliers and types of composite materials and no standard database of materials are available.
Composite material property data should be obtained by either testing or by the material supplier.
Thanks for your reply, I understand your point but other analysis software (like SolidWorks Simulation or AutoDesk Composite) are providing a good composite material library,...?!
Take a look to this excellent Tutorial about composites from the FEMAP guys, very good, excellent!. It includes a little composite material library in both mm & inches.