No product is without an environmental impact. Different products cause different burdens on society and the environment. By choosing the right material for the right application we can minimise the burden of each application.
The history of stainless steel can show many examples where the material has been used in applications that we think are sustainable. The material itself has some good properties that fit well into a sustainable society.
Stainless steels can be recycled to almost 100%, and are not degraded when reprocessed. Their raw material constituents (e.g. nickel, chrome, iron) can therefore be re-used indefinitely for the production of new stainless steel.
The inherent corrosion resistance properties of stainless steels mean that surface coatings or painting, which can be harmful to the environment, are not needed to enhance the life cycle of a product.
It also means that extremely low levels of metal ions are released from stainless products, when exposed to most normal environments, and hence there is no harmful impact to the environment.
The corrosion resistance also increases the lifetime of the product. The increased durability means that unnecessary replacements and repairs with subsequent need for new resources can be avoided.
In addition to their corrosion resistance, stainless steels also have good mechanical properties. These can be exploited to manufacture lighter components and products, without compromising safety requirements.
Stainless steel is the first material choice for hospital equipment and surgical instruments since it can be easily cleaned and sterilised for constant re-use, without degradation. Most processing equipment used in the production of pharmaceuticals, and for the preparation of food products, are also made from stainless steels for similar reasons. Stainless steels have also helped to make the process of desalination (i.e. producing potable water from seawater) economically viable. Thus many arid areas of the world can now enjoy the benefits that come from the availability of fresh water.