All You Need to Know About Rust
Rust is defined as iron oxide, and usually, a red oxide formed due to the reactions to different elements on a metal surface. There are various factors to consider when dealing with rust problems. You need to know these factors to deal with rust and corrosion.
Packaging related. The type of packaging used in metal equipment is critical in rust prevention. Acidic materials such as non-treated and corrugated paper can cause corrosion and moisture. Many companies add more packaging to a material as they want to fix corrosion. However, adding more packaging to an equipment will only contribute even more to rust issues.
Process-related. The process of producing a metal part can also contribute to rust problems. It includes the cleaning process, metal fabrication, handling process and heat treating or machining. Customers don’t know that the corrosion problems also start to happen inside the manufacturing plant before the metal is packaged.
Environmental. This is the most common contributor to a corrosion problem. If a metal material is left unattended and exposed to different weather conditions, it can obviously lead to rust issues. The weather temperature and humidity are the usual factors that cause these issues. Contaminants in the air are also involved in these.
Types of Rust
Red Rust. Rust from Iron (III) oxides exists due to high water exposure and oxygen that results in red rust. It is the result of heavy exposure to moisture, air and combined many times with contaminates (salt). This type of rust is atmospheric due to the absence of rust runs or streaks on metal parts.
Yellow Rust. Rust from Iron (III) oxides forms due to soluble iron oxides which result to yellow rust. This type of rust can be seen in recessed areas of the metal parts where the rust drips and runs. Yellow rust forms due to high moisture content and frequently found in areas where water is mostly present.
Brown Rust. Rust from Iron (III) oxides forms due to high oxygen and low moisture which result in yellow rust. This type of rust is drier compared to others and most likely atmospheric, which is formed due to oxygen and water in the atmosphere. It usually shows a reddish-brown crust on the surface of the metal.
Knowing the causes and types of rust will help you fix corrosion issues and encourage rust prevention. In this way, you will be able to prevent your metal materials or equipment from being exposed to rust. Having rust-free equipment will preserve the quality and last longer.