| [Visitor (112.0.*.*)]answers [Chinese ] | Time :2022-05-18 |  The general composition of stainless steel is a combination of iron and chromium and carbon. In addition, household goods stainless steel can be greatly divided into 430, 304 (18-8), 18-10 three grades. ★ 430 stainless steel: steel more than 12% of chromium can prevent oxidation caused by natural factors, called stainless steel, in the jis code number of 430, so also known as 430 stainless steel.But 430 stainless steel can not resist the oxidation caused by chemicals in the air, because the acidic chemicals in the air are more and more, so 430 stainless steel is not often used for a period of time, there will still be oxidation (rust) ★ due to unnatural factors 304 stainless steel: steel 18% chromium 8% nickel → can resist chemical oxidation, this stainless steel in the jis code number of 304, so it is called 304 stainless steel, because its proportion is 18% chromium and 8% nickel, so it is also called 18-8 stainless steel.Taiwan is commonly known as "white iron" ★ 18-10 stainless steel: but the chemical composition in the air is more and more, some of the more serious pollution places even 304 will have rust; so some high-end supplies such as: Bull head brand pots and pans and some Japanese products, will be made of 10% nickel to make it more durable and more corrosion resistant, this stainless steel is called 18-10 stainless steel, these three kinds of stainless steel, the simplest way to distinguish is: with magnets to suck the bottom, can absorb is 430, What can't be sucked is the 304 and 18-10.But the edge of the 304 pot, or the front and rear end of the spoon, sometimes can be sucked because of the magnetic properties produced by polishing. So the most accurate way is to suck the bottom... |
|
