A large variety of materials, ranging from platinum to concrete, is used by the engineer to construct bridges, vehicles, process plant equipment, pipelines, and power plants. The properties of engineering materials depend upon their physical structures as well as their basic chemical and metallurgical composition. It is critical to cooperate with other design team members familiar with the mechanical, physical, and other properties to ensure that the desired materials performance can be achieved. There is a standards for most materials, which normally identifies the analysis, form, properties, and other details of their characteristics.