Is SUS316 stainless steel suitable for making thermos flasks？

Hello everyone, as a manufacturer specializing in the supply of SUS316 stainless steel for 18 years, today we will talk about the role of SUS316 stainless steel in thermos cups.

1. What is SUS316?

SUS316, also known as 316 stainless steel, is a medical grade stainless steel material. It has the following characteristics:
Strong corrosion resistance: suitable for coastal and softened water areas.
Good toughness: not easy to break, durable.
Good weldability: convenient for processing and manufacturing.

2. Application of SUS316 in thermos cups

You may ask, is SUS316 stainless steel water cup really better than other materials? The answer is: it depends.
Corrosion resistance: SUS316 stainless steel is better than 304 stainless steel and is suitable for harsh outdoor environments.
High temperature resistance: SUS316 can withstand high temperatures of 1200℃~1300℃, which is much higher than home use.

3. 304 vs. 316: Which is more suitable for thermos cups?

304 stainless steel: enough to meet the needs of daily use. When the thermos is used correctly, neither 304 nor 316 stainless steel will affect your health. The 800℃ high temperature resistance standard of 304 stainless steel is much higher than that of home use, so it is completely sufficient.
316 stainless steel: slightly more expensive, but better insulation effect. If you are looking for the ultimate insulation performance, you can choose 316 stainless steel.

Therefore, SUS316 stainless steel is widely used in the medical, chemical, and food industries, and is often used to manufacture high-end appliances, kitchen utensils, medical equipment, etc. For thermos bottles, SUS316 stainless steel can not only ensure long-lasting insulation and cooling effects, but also has a safety lock system and sealing and leak-proof functions, which is very safe to use.