Which material is commonly used in engineering?

Steel is commonly used in engineering due to its exceptional strength, durability, and versatility. It has a high tensile strength, making it ideal for construction and manufacturing applications where structural integrity is crucial. Steel can be formed and welded into various shapes, allowing engineers to design complex structures such as bridges, high-rise buildings, and machinery components. Additionally, it can be treated to resist corrosion or to enhance its properties, making it suitable for a wide range of environments and uses.

While glass, plastic, and wood also have their applications in engineering, they do not match the overall performance characteristics of steel for most structural uses. Glass is frequently utilized for aesthetic purposes or as insulation but lacks the structural strength necessary for load-bearing applications. Plastic is lightweight and resistant to corrosion, making it suitable for specific applications, particularly in consumer products, but it has limitations in temperature and strength when compared to metals like steel. Wood is a traditional engineering material valued for its natural properties; however, it is less durable and versatile in structural applications when compared to steel infrastructure.