It is a galvanized metal sheet with different sizes of scratches and pitting.
The crystallized pattern defines the signature of galvanized iron.
Galvanized metal is commonly used for covering wooden structure. Usually, construction workers simply nail them on wooden parts.
It is also used to make water tanks.
This is a seamless and tileable PBR CG texture for 3D artists.
Each package usually includes a Base Color Map / Diffuse Map, Normal Map, Roughness Map, Displacement Map, Metallic Map (Metals Only) and Ambient Occlusion Map.
It is FREE for personal and commercial use!
It can be downloaded at
https://www.texturecan.com/details/67/