Title: 1Detailed explanation, chemical composition and summary use of corrosion resistance parameters of 4820 stainless steel.
I. Overview 14820 stainless steel is a steel grade with excellent corrosion resistance, which is widely used in chemical, petroleum, marine engineering and other fields. Its unique corrosion resistance makes it ideal for a wide range of corrosive environments.
2. Corrosion resistance parameters.
1.Corrosion-resistant environment: 14820 stainless steel excels in a variety of corrosive environments, including oxidizing, reducing, mixed, and salt spray environments.
2.Corrosion resistance grade: This steel grade belongs to the ultra-low carbon type (0.).035%c) and contains a higher content of alloying elements, with high corrosion resistance, can resist the corrosion of medium concentrations of sulfuric acid and hydrochloric acid.
3.Corrosion Resistance Life: Due to its excellent corrosion resistance, 14820 stainless steel has a long corrosion resistance life under normal use conditions.
3. Chemical composition.
c：≤ 0.035%
si：≤ 1%
mn：≤ 2%
p：≤ 0.04%
s：≤ 0.03%
cr: margin.
Ni: Ni content not less than 4%.
Mo: Contains a small amount of the Mo element, about 02-1%
NB: Contains a small amount of NB elements, about 03-1%
cu：≤ 0.5%
Others: The total content of Fe+Ni+Cr+C is about 95%.
Fourth, summarize the use.
1. 1.Due to its excellent corrosion resistance, 4820 stainless steel is suitable for various corrosive environments, such as chemical equipment, pipelines and storage tanks in the petroleum industry.
2.In the field of marine engineering, this steel grade can be used to make desalination equipment, ship parts, etc.
3.In the construction sector, this steel grade can be used to make outdoor metal structures such as railings, stairs, etc.
4.It can also be used to manufacture equipment that requires corrosion protection in high-temperature environments, such as chimneys, heat exchangers, etc.
In total, 1.4820 stainless steel has become an important steel grade due to its excellent corrosion resistance and diverse application areas.