A hardened washer, also known as a high-strength or hardened steel washer, is a type of washer that is made from a material that has been heat-treated or hardened to increase its strength and durability. These washers are commonly used in applications where the washer needs to provide additional strength and resistance to wear, deformation, or damage.
The hardening process typically involves heating the washer material to a specific temperature and then cooling it rapidly, a process known as quenching. This heat treatment alters the microstructure of the material, making it harder and less susceptible to bending or deformation when under load.
Hardened washers are often made from materials like hardened steel or stainless steel and can come in various shapes and sizes, including flat washers, lock washers, and other washer types. They are used in applications where the washer needs to withstand heavy loads, high-pressure conditions, or repetitive stress without deforming or failing. Common applications include heavy machinery, construction equipment, automotive components, and structural assemblies where maintaining the integrity of the fastening connection is crucial.