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

2023-06-19

In daily life, many people are familiar with stainless steel. It is a high-quality metal material that can be used for a long time. It has excellent corrosion resistance, heat resistance, wear resistance, and other characteristics, so it is widely used in industries such as food, chemical, automotive, and shipbuilding. There are various types of stainless steel insulated cups, among which the most common are 304 and 316. So, what is the difference between the inner liner of 304 and 316 insulated cups? For customize cups, which kind of stainless steel should you choose?

Comparison between 304 and 316 insulated cups

The 316 inner liner is made

material

The 304 inner liner is made of 18Cr-8Ni (18% chromium and 8% nickel) stainless steel, which has good corrosion resistance and can effectively resist corrosive materials such as hydrogen sulfide and nitrite in general water and air. It can be used for a long time and is more suitable for use in low temperature and weakly corrosive environments. The 316 inner liner is made of 18Cr-12Ni-2Mo (18% chromium, 12% nickel, and 2% molybdenum) stainless steel, which has better corrosion resistance than the 304 inner liner. It can resist strong corrosive materials in water and air, such as sulfuric acid, salt water, etc., and is suitable for use in environments with high temperatures and strong corrosiveness. What is the difference between 304 and 316 stainless steel insulation cups

price

Due to the unique nature and different chemical compositions of the raw materials, the material cost of the 304 inner liner is lower, and its resistance to acid and alkali is slightly weaker than that of the 316 inner liner. Therefore, the price of the 304 inner liner is lower than that of the 316 inner liner. In terms of production process and flow, there is no difference between the two.

Industry usage

Due to its excellent corrosion resistance, the 304 inner liner is suitable for use in environments with low temperatures and weak corrosiveness. Therefore, it is commonly used in the production of daily necessities such as kitchen utensils, household appliances, washing machines, dryers, and water dispensers. However, the 316 inner liner has stronger corrosion resistance and is suitable for use in environments with high temperatures and strong corrosiveness. Therefore, it is commonly used in the production of equipment in industries such as food, chemical, automotive, and shipbuilding. Daily drinking water can meet both usage needs. If there are higher requirements for corrosion resistance, such as frequent consumption of carbonated beverages or use at the seaside, a 316 inner insulated cup can be chosen.

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