Are stainless steel spoons poisonous?

Stainless steel kettles do have a risk of cancer, as many people may have seen, so everyone rushes to replace the stainless steel kettles at home. However, there is no way to boil water after the stainless steel kettle breaks down, and the only way to heat water is through some water dispensers and other methods. As to whether stainless steel kettles are toxic or not, we still need to have a correct understanding and knowledge about this.

How to use stainless steel products:

Although stainless steel is corrosion-resistant, it does not mean it will not corrode. It just corrodes more slowly than other metals. However, if used improperly, the trace metal elements in stainless steel will slowly accumulate in the human body, and when they reach a certain amount, they will endanger human health. In particular, nickel in stainless steel is a carcinogen, and excessive intake can cause great harm to the body.

Now there are many bad suppliers in the market who mix various metal elements into their products. Various incidents such as fake stainless steel and excessive manganese have caused people to worry about the safety of stainless steel tableware. Today, let Encyclopedia take you to get to know this material called "stainless steel" again.

Stainless steel components:

Stainless steel is an alloy steel made of iron-chromium alloy and some other trace elements (nickel, manganese, titanium, cobalt, molybdenum and cadmium, etc.).

Stainless steel material classification:

Austenitic-ferritic stainless steel (can be divided into Cr18 type, Cr22 type, Cr23 "Mo-free" type and Cr25 type);

Austenitic stainless steel (usually 200, 300 series, such as 201, 202, 304, 321, 316, 310, etc.);

Ferritic stainless steel (usually 400 series, such as 409, 430, 430Ti, 439, 411, etc.);

Martensitic stainless steel (such as 430, 420, 410, etc.).

Different materials result in different corrosion resistance and sanitary safety performance of the products.

Austenitic-ferritic stainless steel (duplex stainless steel) can be used in harsh media conditions, has good corrosion resistance and comprehensive mechanical properties, is comparable to super austenitic stainless steel, and has the advantages of both ferritic and austenitic stainless steel. Features: Good pitting corrosion resistance; good corrosion fatigue and wear corrosion resistance; good comprehensive mechanical properties.