1. Component content
4Cr 13 stainless steel is martensitic stainless steel, with C content of 0.36 ~ 0.45, Si: ≤ 0.60, Mn: ≤ 0.80, S: ≤ 0.030, P: ≤ 0.035, Cr:12.00 ~1. For 304 stainless steel, Ni element in its composition is very important, which directly determines the corrosion resistance and value of 304 stainless steel. C≤0.08，Mn≤2.00，P≤0.045，S≤0.030，Si≤ 1.00，Cr 18.0–20.0。
Step 2 perform
4Cr 13 stainless steel has excellent comprehensive mechanical properties due to its high austenite content. After quenching, 4Cr 13 has higher hardness and better corrosion resistance than 3Cr 13. 304 stainless steel is a common material in stainless steel, with a density of 7.93 g/cm3, high temperature resistance of 800℃, good machinability, high toughness, tensile strength σb (MPa)≥5 15- 1035 and conditional yield strength σ0.2 (MPa)≥205.
use
4Cr 13 stainless steel is often used for cutting tools, hot oil pumps, valve plates, valve bearings, medical devices, springs and other parts with high hardness and strong wear resistance. 304 stainless steel is the most widely used chromium-nickel stainless steel, which is widely used in industry, furniture decoration industry and food and medical industry.
Extended data:
Stainless steel refers to steel resistant to weak corrosive media such as air, steam and water and chemical corrosive media such as acid, alkali and salt, also known as stainless acid-resistant steel. In practical application, steel resistant to weak corrosive medium is usually called stainless steel, while steel resistant to chemical medium is called acid-resistant steel. Because of the different chemical composition, the former is not necessarily resistant to the corrosion of chemical media, while the latter is generally stainless. The corrosion resistance of stainless steel depends on the alloying elements contained in the steel. Stainless steel is usually divided into martensite steel, ferrite steel, austenite steel, austenite-ferrite (duplex) stainless steel and precipitation hardening stainless steel. In addition, it can also be divided into chromium stainless steel, chromium nickel stainless steel and chromium manganese nitrogen stainless steel.
References:
Stainless steel-Baidu encyclopedia