The structural materials used in framework and propulsion systems influence the worth, performance and safety of aircraft, and an understanding of the wide array of materials used and conjointly the issues encompassing them is crucial for the scholar of aerospace engineering. Introduction to aerospace materials reviews the most structural and engine materials employed in aircraft, helicopters and spacecraft in terms of their production, properties, performance and applications. Aerospace materials are materials, oftentimes metal alloys that have either been developed for, or have come to prominence through their use for aerospace functions. These uses usually need exceptional performance, strength or heat resistance, even at the value of substantial expense in their production or machining. Others are chosen for their long-run responsibility during this safety-conscious field, notably for their resistance to fatigue. The sphere of materials engineering is a very important one at intervals aerospace engineering. Its apply is defined by the international standards bodies who maintain standards for the materials and processes concerned. Engineers during this field might usually have studied for degrees or post-graduate qualifications in it as a specialty.