chromium element
What element in stainless steel keeps stainless steel from rusting
chromium element.
the main alloying element in stainless steel is Cr (chromium). Only when the Cr content reaches a certain value, the steel has corrosion resistance.
Stainless steel
is the abbreviation of stainless acid-resistant steel, and the steel that is resistant to air, steam, water and other weak corrosive media or stainless steel is called stainless steel; The steel that is resistant to chemical corrosion media (acid, alkali, salt and other chemical etching) is called acid-resistant steel.
the invention and use of stainless steel can be traced back to the first world war. British scientist BuHenry buhrer was entrusted by the British government's military arsenal to study the improvement of weapons. At that time, the rifle bore used by soldiers was very easy to wear, and buhrer wanted to invent an alloy steel that was not easy to wear. The stainless steel invented by buhrer Leigh was patented in Britain in 1916 and began to be mass-produced. Since then, the stainless steel accidentally found in the garbage has become popular all over the world, and Henry buhrer Leigh is also known as the "father of stainless steel".
stainless steel 34 and 316
1, stainless steel 34 and 316 have their own advantages, and different choices are made for different ways of use, scenarios, costs, durability and so on. Stainless steel 34 can resist high temperature up to 8℃, which has the advantages of easy processing and high toughness, while stainless steel 316 has the advantages of strong hardness and high oxidation resistance, which is more expensive.
2. Stainless steel 34 is a widely used stainless steel model, containing more than 18% chromium and more than 8% nickel, which can effectively resist acid and alkali corrosion, and is widely used in industries such as industry, furniture decoration, food and medical treatment, etc., with low cost, and can meet the requirements of making ordinary articles.