Many customers often encounter many problems when choosing 304 precision stainless steel coils. Looking at similar products with uneven quality and different prices on the market, many customers do not know how to choose products with good quality and reasonable price. . Here, I will share some tips for you to choose, I hope everyone can choose products with high cost performance.
One. Let's take the 304 material as an example: when selecting, we must determine whether the material meets the standard.
1. In terms of price, generally speaking, the price of stainless steel coils made of 304 material on the market is more expensive than that of 301 material. If the price is lower than that of 301 material, customers need to distinguish themselves, and beware of other materials posing as 304 material.
2. Check whether "304" is printed on the surface of the 304 precision stainless steel coil. If necessary, you can ask the manufacturer for a quality certificate as a certificate.
3. It can be tested with an acid reagent. If the material does not change color after using the acid reagent on the product for 30 seconds, it indicates that it is 304 material, and if the color turns black, it is 201 material.
4. If it is a bulk purchase, you can take some samples from the bulk products and send them to the authoritative testing center for testing.
Two. Check whether there is heavy skin, pitting and rust on the surface of the product. Of course, sometimes a small amount of these situations is unavoidable, and it is basically unaffected during use. When choosing a list, you should try to choose heavy Skin, pitting, and rust are mild, especially if the inner surface is inspected.
Three. When purchasing, you should choose those products that have been assessed by the Quality and Technical Supervision Bureau. Generally, Zhengyang's products are of qualified quality. Usually, you can also look at the choices of your peers. Generally, manufacturers with good quality and good reputation have more customers.
The editor believes that through the above methods, you can basically choose a high-quality 304 precision stainless steel coil.