316 standard model of thermos cup?
The corresponding national standard grade of stainless steel 316 is: 06Cr17Ni12Mo2. For more stainless steel grade comparisons, please view the national standard GB/T 20878-2007.
316 stainless steel is an austenitic stainless steel. Due to the addition of Mo element, its corrosion resistance and high temperature strength are greatly improved. The high temperature resistance can reach 1200-1300 degrees and can be used under harsh conditions. The chemical composition is as follows:
C：≤0.08
Si：≤1
Mn：≤2
P：≤0.045
S: ≤0.030
Ni: 10.0~14.0
Cr: 16.0~18.0
Mo: 2.00-3.00
What is the difference between 316 thermos cup and 304?
1. Differences in main components of metals:
The chromium content of 304 stainless steel and 316 stainless steel is both 16~18%, but the average nickel content of 304 stainless steel is 9%, while the average nickel content of 316 stainless steel is 12%. Nickel in metal materials can improve high-temperature durability, improve mechanical properties, and improve oxidation resistance. Therefore, the nickel content of the material directly affects the overall performance of the material.
2. Differences in material properties:
304 has excellent various mechanical properties and has considerable corrosion resistance and high temperature resistance. It is the most widely used stainless steel and heat-resistant steel.
316 stainless steel is the second most widely used steel type after 304. Its main feature is that it is more resistant to acid, alkali and high temperature than 304. It is mainly used in the food industry and surgical equipment.
How to test 316 steel thermos cup at home?
To determine whether the thermos cup is regular, you first need to check the inner tank of the thermos cup to see if the inner tank material is 304 stainless steel or 316 stainless steel.
If so, there should be “SUS304″ or “SUS316″ on the liner. If it is not, or it is not marked, then there is no need to buy or use it, because such a thermos cup is likely to be a thermos cup that does not meet the regulations and can easily affect people’s health. No matter how cheap it is, do not buy it.
In addition, you also need to look at the materials of the lid, coasters, straws, etc. of the thermos cup to see if they are made of PP or edible silicone.
Strong tea test method
If the inner tank of the thermos cup is marked with 304 stainless steel and 316 stainless steel, then if we are not worried, we can use the “strong tea test method”, pour strong tea into the thermos cup and let it sit for 72 hours. If it is an unqualified thermos cup, then After testing, you will find that the inner liner of the thermos cup will be severely faded or corroded, which means there is a problem with the material of the thermos cup.
Smell it to see if there is any peculiar smell
We can also simply judge whether the liner material of the thermos cup meets the regulations by smelling it. Open the thermos cup and smell it to see if there is any peculiar smell in the liner of the thermos cup. If there is, it means that the thermos cup may be unqualified and it is not recommended. Shop. Generally, for thermos cups that meet the regulations, the smell inside the thermos cup is relatively fresh and has no peculiar smell.
Don’t be greedy for cheap
When choosing a thermos cup, we must not be cheap, especially thermos cups for babies, which must be purchased through formal channels. We must be more vigilant about those thermos cups that appear to be normal and comply with regulations, but are very cheap. There is no free lunch in the world, and there will be no pie. If we are not vigilant, we will be easily deceived. It doesn’t matter if you lose a little money, but if it affects the healthy development of your baby, you will regret it.
Post time: Oct-20-2023