A high alloy steel that can resist corrosion in the air or chemical corrosive media. Stainless steel has a beautiful surface and good corrosion resistance. It does not need to be plated or other surface treatments, but gives full play to the inherent surface properties of stainless steel. It is a kind of steel used in many aspects and is usually called stainless steel. Representative high alloy steels include 13-chrome steel, 18-chrome-nickel steel, etc.

From the perspective of metallography, because stainless steel contains chromium, a very thin chromium film is formed on the surface. This film isolates the steel from the oxygen that invades it and plays a role in corrosion resistance.

In order to maintain the corrosion resistance inherent in stainless steel, the steel must contain more than 12% chromium.

Stainless steel types:

Stainless steel can be roughly classified according to its use, chemical composition and metallographic structure.

Austenitic steel is basically composed of 18% chromium and 8% nickel, and steel grades for various purposes are developed by varying the amount of each element added.

Classification by chemical composition:

①, CR series: ferrite series, martensite series

②, CR-NI series: austenite series, abnormal series, precipitation hardening series.

The definition of stainless steel is a high alloy steel that can resist corrosion in air or chemical corrosive media. Stainless steel has a beautiful surface and good corrosion resistance. It does not need to be plated or other surface treatments, but gives full play to the inherent surface properties of stainless steel. It is a kind of steel used in many aspects and is usually called stainless steel. Representative high alloy steels include 13-chrome steel, 18-chrome-nickel steel, etc.

From the perspective of metallography, because stainless steel contains chromium, a very thin chromium film is formed on the surface. This film isolates the steel from the oxygen that invades it and plays a role in corrosion resistance.

In order to maintain the corrosion resistance inherent in stainless steel, the steel must contain more than 12% chromium.

Features and uses:

General Features

◆ Beautiful surface and diverse usage possibilities;

◆ Good corrosion resistance, longer and more durable than ordinary steel;

◆ High strength, so the possibility of using thin plates is high;

◆ High temperature oxidation resistance and high strength, so it can resist fire;

◆ Processing at room temperature, i.e. easy plastic processing;

◆ Because no surface treatment is required, it is simple and easy to maintain;

◆ Clean and high finish;

◆ Good welding performance.