Razor be used on both sides, with two open edges. The blade on the double-edged safety razor is slightly curved to allow for a smoother and cleaner shave. In 1901, the American inventor King Camp Gillette, with the assistance of William Nickerson, patented a new variation of safety razor with disposable blades. Gillette realized that a profit could be made by selling an inexpensive razor with disposable blades. This has been called the razor and blades business model, and has become a very common practice for a wide variety of products. Many other brands of safety razors have come and gone.
Razor blade steel Razor blade steel Razor blade steel, also known as razor steel, is special type of stainless steel designed specifically to be used as a razor blade. Its defining characteristics are its chemical composition and shape. Jindal Stainless is the world's largest producer of razor blade stainless steel. Razor blade steel is a martensitic stainless steel with a composition of chromium between 12 and 14.5%, a carbon content of approximately 0.6%, and the remainder iron and trace elements. The United States International Trade Commission defines that the shape of the material must be flat rolled coils that are not more than