Roopam Steel

Stainless steel is an alloy steel containing iron (Fe) as the main component. According to expert Steel contain 1.2% or less carbon and 10.5% or more of chromium, according to the ISO standard of international regulations. It is a rapidly popularized material in recent years and is now used in many products. It seems that the reason for the rapid generalization is that the characteristics of stainless steel, such as strong corrosion resistance (rust), high workability, high heat resistance, and strong strength, have been widely accepted. It is often used outdoors because of its strong corrosion resistance. Stainless steel processing Let's take a closer look at corrosion resistance, heat resistance, strength, and workability property of steel. 1. Corrosion resistance This corrosion resistance is the most notable feature of stainless steel. The English name is stainless steel, and the original etymology is stainless, which means "does not rust." The corrosion resistance is ...

This is because austenitic stainless steel contains chromium, which reacts with oxygen to form a passivation film, and nickel, which improves the oxide film's adhesion formed by chromium. The oxide film made of chromium forms a new film immediately, even if it is scratched and disappears. The oxide film can be removed by special processing, but in that case, the corrosion resistance will be reduced. Even so, stainless steel also rusts? There is an environment where even stainless steel, which is hard to rust, will rust. Then, in what cases stainless steel rusts, the environment where stainless steel rusts are summarized below. 1. Get rust If you touch a metal that has already rusted for a long time, it will react with oxygen in the air, and only that part will rust. In addition, stainless steel is not rusted, but rust adheres to the oxide film of stainless steel, resulting in a "rusted" state. 2. Rust due to scratches It may be scratched and then rusted before the oxide f...