Main materials of thermos bottle
The largest proportion of thermos bottle is stainless steel thermos bottle, and the material used is stainless steel. General stainless steel material involves 201 stainless steel, 304 stainless steel and other professional terms. Stainless steel refers to steel that is resistant to weak corrosive media such as air, steam, water and chemical corrosive media such as acid, alkali, salt, etc., generally containing alloys such as copper, nitrogen, titanium, etc.
The general stainless steel material used in the stainless steel thermos bottle is 304 stainless steel, which has strong rust resistance, high temperature resistance, temperature resistance up to 1000-1200 degrees, and excellent corrosion resistance of stainless steel. Poor stainless steel material corrosion resistance and acid and alkaline resistance are very weak, so stainless steel thermos bottle is also good or bad. Good stainless steel thermos bottle is made of high-quality stainless steel, and its cost is also increased. Some small factories without brands and scale will have the behavior of Jerry building and shoddy manufacturing. The use of 201 and other inferior steel and the production of stainless steel thermos bottles are all unqualified.
It is difficult for non professionals to judge the material of stainless steel thermos bottle only by its appearance. We must go to the regular shops when we buy. We can buy brand products.