What is the difference between 304 and 201 stainless steel

Stainless steel is a common steel in daily life. What is the difference between 304 and 201 stainless steel? Let's take a look at the relevant knowledge right away.
1、 What is the difference between 304 and 201 stainless steel
1. Different components
The components of the two are different. 201 stainless steel contains 15% chromium and 5% nickel, and is a substitute steel for 301 steel. 304 stainless steel contains 18% chromium and 9% nickel.

2. Different corrosion resistance performance
201 has a high manganese content, with a bright and dark surface, and is prone to rusting due to its high manganese content. 304 contains a lot of chromium, with a matte surface and no rust. Stainless steel is not easy to rust, and the formation of chromium rich oxides on the surface of the steel body can protect the steel body. 201 material is high manganese stainless steel, 304 has high hardness, high carbon, and low nickel.

3. Different applications
201 has advantages such as acid and alkali resistance, high density, and no bubbles during polishing, making it suitable for making decorative pipes, industrial pipes, and other products. 304 stainless steel has good processing performance and high toughness, suitable for industrial and furniture industries.

2、 How to choose stainless steel material
1. Distinguish materials
Common stainless steels on the market include 201, 304, 316, etc., which are processed and colored on the surface. Among them, 316 has strong corrosion resistance, while 304 material is the most environmentally friendly and is commonly used to make tableware, which is not harmful to people. Black merchants with similar prices may use 201 instead of 316, so it is important to learn how to distinguish.

2. Coloring process
The coloring process on the surface of the product will affect the price. The water plating coloring is not delicate enough, just like the spraying effect, and the price is cheap. Vacuum plating coloring is safer and more environmentally friendly, without worrying about the production of toxic substances.

3. The quality of the film
After processing, a protective film will be applied to the surface of the product, making it look smoother and preventing scratches. But if the quality is not good, it will be difficult to tear off over time and the surface will still stick dirty.

4. Observing metal surfaces
Its surface contains metallic components and is widely used in daily life. When purchasing, carefully inspect the surface for color differences, scratches, peeling, and other issues.

Conclusion of the article: The relevant knowledge about the difference between 304 and 201 stainless steel has been introduced here, hoping to be helpful to everyone.