Household stainless steel cutlery
E-BON
E-BON
2018-08-08 21:39:23
430 stainless steel:
Iron +12% or more of chromium can prevent oxidation caused by natural factors, called stainless steel, codenamed 430 in jis, so it is also called 430 stainless steel. However, 430 stainless steel cannot withstand the oxidation caused by chemicals in the air. After 430 stainless steel is not used for a period of time, it will still be oxidized (rusted) due to unnatural factors.
18-8 stainless steel:
Iron +18% chromium +8% nickel, can resist chemical oxidation, this stainless steel in the jis code is No. 304, so it is also known as 304 stainless steel.
18-10 stainless steel:
However, there are more and more chemical components in the air, and some of the more polluted areas will have rust in 304; so some high-grade products will be made of 10% nickel to make them more durable and more resistant. The stainless steel is called 18-10 stainless steel. In some of the tableware instructions, there is a saying that "the use of 18-10 most advanced medical stainless steel material".
Stainless steel can be divided into three categories according to metallographic structure: austenitic stainless steel, ferritic stainless steel and martensitic stainless steel. The main components of stainless steel are iron, chromium and nickel alloys. In addition, trace elements such as manganese, titanium, cobalt, molybdenum and cadmium are included, which makes the stainless steel stable in performance and has rust and corrosion resistance. Austenitic stainless steels are not easily magnetized due to the special nature of the internal molecular structure.