How to identify stainless steel products?

Q: Many cookware is now appearing on the market, even though the sign is written in stainless steel suppliers, is actually a "stainless steel iron" products. How should identify the 430 stainless steel plate and the "stainless steel iron" supplies it? A: 1 from the identification tag: Many stainless steel supplies are playing surface has stamp, for example: the words, short in front of the number 13 ~ 0,18 ~ 8 indicates that the product, such as chromium content, short behind the numbers indicate the amount of nickel-containing products . Like 13 to 0 indicates it does not contain nickel chromium, commonly known as "stainless iron"; 8 and 18 to indicate that the product also contains chromium nickel, this isstainless steel plate. 2. From the sound judgment: Tap stainless steel or "stainless iron" products can also be used as a method to judge. 3. Use a permanent magnet to attract: the real attraction of 430 stainless steel magnetic is not magnetic, "stainless steel iron," you can be attracted to a magnet. Although there are differences "stainless iron" and stainless nature, but in terms of its anti-corrosion ability, are much better than wrought iron and cast iron cookware.