The Difference Between 304 and 316 Stainless Steel Bottles

The Difference Between 304 and 316 Stainless Steel Bottles


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


Many appliances in our life are made of stainless steel, and there are many kinds of stainless steel, so what is the difference between 304 stainless steel and 316 stainless steel?


1. The chemical composition is different: 304 has no molybdenum element, while 316 has molybdenum element.


2. Different corrosion resistance: 304 contains only 9% nickel elements, while 316 contains 12% nickel elements, so the corrosion resistance of 304 is worse.


3. Different performance: 304 has better corrosion resistance, acid resistance and alkali resistance, while 316 has better chloride corrosion resistance and heat resistance due to the addition of molybdenum.


4. The scope of application is different: 304 is widely used to make pots and pans, etc., while 316 is widely used in the food industry, medical industry, watch industry, etc.


5. Different prices: Since 316 is food grade and has better corrosion resistance, the price of 316 will be more expensive than 304.


How to distinguish 304 stainless steel and 316 stainless steel bottle?


1. If you look at 304 and 316 stainless steel with the naked eye, there is generally no difference, so many merchants sell 304 stainless steel as 316 for their own benefit, but the price difference between the two is still quite large, because 316 belongs to food Grade, better corrosion resistance, so the price of 316 will be more expensive than 304. If you spend 316 money but buy back 304 stainless steel tableware, it means that you have spent a lot of money.


2. Since the chemical components added to 304 and 316 are different, when distinguishing the two, professional stainless steel potions can also be used to distinguish them. After dripping the potion on the stainless steel, the surface of the 304 material is generally a little red, while the surface of the 316 material will be black.


3. If there is no professional potion, you can also use a magnet to test and distinguish. If the stainless steel is made of 304, it cannot be attracted by the magnet. However, the accuracy of this method is relatively low.


4. In fact, if it is just for home use, there is no need to choose 316 material, because the characteristics of 304 are completely in line with household standards, so you can avoid buying only 304 products at the price of 316 material.


Which is better, 304 or 316 stainless steel bottle?


A stainless steel bottle is an item we use every day, especially in winter, almost everyone will have a stainless steel bottle in their hands. Now there are many different styles of stainless steel bottle on the market, and the prices are different. When buying a stainless steel bottle, some people only pay attention to the appearance of the stainless steel bottle. However, I believe that most friends still pay more attention to the quality of the stainless steel bottle and the quality of drinking water security question. The more common stainless steel bottle are basically 304 and 316 stainless steel bottle, so which of these two stainless steel bottle is better?


When we buy a stainless steel bottle, the first thing we should pay attention to is its material. The material of the stainless steel bottle can not only determine its thermal insulation effect, but also determine the health of drinking water. If the material is not good, then our drinking water It may also be affected to a certain extent. Drinking water from such a bad stainless steel bottle every day will naturally harm our body.


When choosing a stainless steel bottle, we need to distinguish between the shell material and the liner material. If it is the shell, the general merchants will use the more economical and affordable 201 stainless steel. This stainless steel is cheaper and more affordable. It is used for As a shell, you only need to add a layer of paint on the surface, so the price is relatively low. However, 201 stainless steel does not meet the grade of stainless steel used in contact with food as stipulated in the national standard, so this kind of stainless steel cannot be used to make the inner liner of the stainless steel bottle. You must pay attention when purchasing, and do not choose the inner liner of 201 stainless steel.


In addition, 304 and 316 stainless steel are actually stainless steel grades that meet the requirements of the national standard for contact matching. If it is used normally, you can choose 304 stainless steel. The corrosion resistance of 316 stainless steel will be stronger. If you often use stainless steel bottle to brew milk, coffee and other drinks, then it is recommended that you choose 316 stainless steel cups. 316 stainless steel is generally more expensive than 304 stainless steel, but its hardness is indeed softer than 304 stainless steel, so if you don’t often put milk tea, milk and other drinks in the stainless steel bottle, you only need to choose economical and affordable 304 stainless steel is sufficient.


Which kind of stainless steel cup has better thermal insulation performance?


The liner of the stainless steel cup will affect its thermal insulation performance. Now there are many upgrade methods for the stainless steel cup with upgraded liner on the market, including multi-layer liner or plated liner. Performance has not improved significantly. If you want better heat preservation performance, you can choose a stainless steel cup with ceramic coating, which has stronger heat insulation ability and better corrosion resistance.


In addition to the inner tank of the stainless steel cup, the lid of the stainless steel cup may also affect the thermal insulation performance. Generally speaking, the thermal insulation effect of the spring lid is the worst, and the thermal insulation effect of the screw lid is relatively better, because It is a multi-layer design, so the heat that can evaporate will be smaller. In addition, the stainless steel cup with the screw cover is relatively more airtight. If you will go out often, put the cup in the bag, and you don’t have to worry about water leakage. For friends who often go out, use It will also be more convenient.