Stainless steel thermos 304 or 316?

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stainless steel thermos 304 or 316?

What is the difference between 304 stainless steel thermos cup and 316 stainless steel thermos cup?

304 and 316 stainless steel

304, 316, all stainless steel. What is the brand name?

Stainless steel, the full name is "rust resistant acid steel". The so-called "rust" refers to being corroded by oxygen and water vapor in the air, resulting in rust. All stainless steel is protected from this corrosion.

But life can still see a lot of stainless steel surface rust, this is why? The answer is that it's eaten by acid -- rainwater, food, all of which have acid in them, potentially corroding stainless steel.

Stainless steel is an alloy with many components. Different ingredients, different formulations, stainless steel acid corrosion resistance is also different.

Brand, is the stainless steel "formula" name.

The most common ones are 201 stainless steel, 304 stainless steel and 316 stainless steel. According to the national standard, 201 is not allowed to contact food directly, it will be corroded by food, produce rust, harm health.

304 stainless steel and 316 stainless steel can reach the standard of contact with food, among which 316 stainless steel acid corrosion ability is stronger.

But then again, is this "strong" really what we need? The answer is no -- most foods can't hurt 304 stainless steel. Only carbonated drinks, dairy products, need to use 316 stainless steel.

So the recommendation is this: for daily use, choose 304 is enough. If you need to pack drinks, you need to increase the price to buy products of 316.

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