How to judge the quality of stainless steel water cups?

Today, I will share with you how to judge the quality of stainless steel water cups. Here we take 304 stainless steel as an example.

As we all know, the two materials used in the production of stainless steel water cups are 304 stainless steel and 316 stainless steel. In comparison, 304 stainless steel is more cost-effective. 304 stainless steel is recognized as food-grade stainless steel in the world. http://www.zhanyict.com/The material price is lower than 316 stainless steel and it is harmless to the body. Even if it is 304 stainless steel, due to different production factories and different production quality management, 304 stainless steel will also be different. How to judge whether a water cup is made of high-quality 304 stainless steel?

First of all, let me tell you what are the ingredients of 304 stainless steel? 304 stainless steel is austenitic stainless steel, the main ingredients include 17% to 19% chromium and 8% to 10.5% nickel. http://www.zhanyict.com/These ingredients make 304 stainless steel have excellent corrosion resistance and good mechanical properties. The lower carbon content (less than 0.08%) makes 304 stainless steel have good weldability. Therefore, a high-quality 304 stainless steel water cup should use these characteristics.

Secondly, understanding the material manufacturer and brand reputation is also an important factor in judging the quality of stainless steel water bottles. Well-known brands usually have stricter requirements on product quality and will conduct strict testing and certification. http://www.zhanyict.com/The well-known brands mentioned here mainly refer to well-known brands of cups and pots. Choosing products from well-known brands is currently the fastest way to avoid choosing water bottles made of poor materials.

Next, when buying a water cup, you should observe the appearance and workmanship of the water cup. High-quality 304 stainless steel water cups usually have good welding and polishing processes, without obvious flaws and defects. http://www.zhanyict.com/Observe whether the surface of the water cup is smooth, without scratches, bubbles, and unevenness. If the water cup has a rough appearance and obvious cracks or unevenness at the weld, it may be that poor quality materials are used, but it does not rule out problems with product quality and production management.

Then, pay attention to the quality inspection mark of the water cup. High-quality 304 stainless steel water cups usually have relevant quality inspection marks on the product to prove that they meet the relevant quality standards, such as meeting certain standards and meeting national standard XX requirements. http://www.zhanyict.com/Usually, if the manufacturer has such obvious marks on the materials on the product, it will be relatively safer to use the materials.

Finally, you can try to use acid, alkali and other solutions to experiment and observe whether the water cup changes color, corrodes, etc. 304 stainless steel has good corrosion resistance and is generally not corroded by acids and alkalis.

The method of using chemical reagents to detect stainless steel materials is currently limited to detecting whether it is 304 stainless steel. http://www.zhanyict.com/When all of them are 304 stainless steel, it is difficult to judge whether they are good or bad.