Black Chrome is a highly durable coating offering various beneficial properties. This coating is known for its hardness, non-reflective nature, abrasion resistance, and heat and corrosion resistance. It is typically applied to steel parts after heat-treating and mechanical operations. The thickness of the Black Chrome coating is approximately 0.0002 inches. Although the coating itself provides some corrosion protection, it can be further enhanced by adding an underplating, such as Nickel. This combination of coatings offers a higher level of corrosion resistance.
Black Chrome coating has a dull dark gray color close to black. This color is often used for military applications and is specified in the Mil-C-14538C standard. When applying Black Chrome to steel parts with a Rockwell hardness greater than Rc40, it is important to stress-relieve the parts before plating. To darken the surface of the Black Chrome coating, it can be waxed or oiled. This can enhance the appearance of the coating and provide additional protection against corrosion.
Overall, Black Chrome is a highly functional coating with excellent durability and steel parts protection. It offers a combination of functionality and aesthetics, making it a popular choice in industries where these properties are necessary. Black Chrome’s non-reflective and corrosion-resistant properties make it particularly useful in various industries, including military, automotive, and aerospace.