With the design of computer-controlled methods to make layers of stainless steel, tightly controlled structures of material can be made from nanoscales to micron scales. This also helps a 3D metal printer to build cell wall structures to prevent fractures in the finished product. When tests were conducted, the end result was the 3D printed stainless steel became 3x stronger than conventionally made stainless steel. Companies like Sculpteo, created metallic powder mainly composed of 66-70% iron, 16-18% chrome, 11-14% nickel, and 2-3% molybdenum to make the resulting metal material having strong corrosion resistance. This is a victory when producing parts needed in the medical field with endoscopic and orthopedic surgery. Though this material can also help when creating watches and jewelry products. Source