In a broad sense, stainless steel is generally a general term for stainless steel and acid-resistant steel.
Stainless steel in a narrow sense is a general term for all steels with a chromium content of more than 12% and refers to steels that are resistant to corrosion by weak media such as atmosphere, steam, and water. Acid-resistant steel refers to steel that is resistant to corrosion by chemically corrosive media such as acid, alkali, and salt.
Historical Chronology
1912: Type 18-8 stainless steel was the earliest patent for the manufacture of cutlery.
1913~1935: The stainless steel that appeared in the United Kingdom, Germany, the United States, and France is the most widely used standard stainless steel today. In 1930, it was used in the military industry and construction industry, such as the construction of the Chrysler Building in New York, and part of it was decorated with stainless steel.
1950: Oil refining, pulp and paper industries, household utensils, and clothing industries.
1960: Unprecedented development of stainless steel for use in the nuclear industry, beginning in vehicles.
1970: Environmental protection technology, construction industry, electronics, textiles.
1980: For offshore structures, energy technology, and building transport.
1990: New steel grades continue to emerge, with a wider range of applications.