The corrosion resistance of stainless steel makes it widely used in aerospace, engineering, consumption, oil and gas, medicine and marine industries.
What we usually call "stainless steel" is called "stainless and acid-resistant steel" in full. To make steel not rusty, it is actually very simple, just add some metal impurities to make alloy steel (such as adding chromium).
Food and metallurgical experts said in an interview with Xinhua News Agency that qualified hot water bottles would not harm human health, and pointed out that the Jiangsu Quality Supervision Department sampled 4% acetic acid as a food simulant.
The so-called duplex stainless steel is that the ferrite phase and the austenite phase in its solid-quenched structure each account for half, and generally the minimum phase content must reach 30%.
If you look at it from the perspective of literary meaning, "stainless steel" is indeed easy to misunderstand. However, "stainless steel" itself is very wrong, so it is accurately translated from English-stainless steel.