Product Introduction

304 stainless steel white steel plate is divided into two types: hot rolling and cold rolling according to the manufacturing method. According to the structural characteristics of the steel type, it is divided into 5 categories: austenite type, austenite-ferrite type, ferrite type, martensite type, precipitation Hardening type. It is required to withstand the corrosion of various acids such as oxalic acid, nitric acid, and formic acid. It is an alloy steel that is not easy to rust, but it is not absolutely rust-free. The corrosion resistance of stainless steel mainly depends on its alloy composition and internal structure, and the main role is chromium. Chromium has high chemical stability and can form a passivation film on the surface of the steel to isolate the metal from the outside world, protect the steel plate from oxidation, and increase the corrosion resistance of the steel plate. After the passivation film is destroyed, the corrosion resistance decreases.

It is widely used in chemical, food, medicine, paper, petroleum, atomic energy and other industries, as well as various parts and components of construction, kitchenware, tableware, vehicles, and household appliances.

International stainless steel marking method

The American Iron and Steel Institute uses three digits to designate various standard grades of malleable stainless steel. in:

1. Austenitic stainless steels are marked with numbers in the 200 and 300 series.

2. Ferritic and martensitic stainless steels are represented by numbers in the 400 series. For example, some of the more common austenitic stainless steels are designated 201, 304, 316 and 310.

3. Ferritic stainless steels are marked with 430 and 446, and martensitic stainless steels are marked with 410, 420 and 440C, duplex (austenite-ferrite).

4. Stainless steel, precipitation hardening stainless steel, and high alloys with less than 50% iron are usually named by patent names or trademarks.

Product Parameters