How do you know if it is stainless steel?

How do you know if it is stainless steel? Stainless steel usually refers to steel types alloyed with nickel and chromium. The high content of chromium and nickel gives the steel protective properties against corrosion or rust. For the steel to become stainless, at least 10.5% of its weight must consist of chromium.

Identify stainless steel

For those who want to be sure that, for example, a bracelet really consists of stainless steel, there are various methods to use. Stainless steel and aluminum alloy may look very similar to each other, but they have big differences in terms of properties. A common way to find high-quality stainless steel is to look for the "stainless steel" label on the product. Since products made of stainless steel are often in a slightly higher price range, the manufacturer usually demonstrates that the product is made of stainless steel with this marking.

Magnetism and appearance

Stainless steel is in principle always non-magnetic, except when special alloys are included in the material. To find out if a product is made of stainless steel, you can hold a magnet to it. If the magnet does not stick, this can be a clear sign that it is made of stainless steel. You can also inspect the product visually. Stainless steel has a silver gray color with a polished or brushed surface. This varies slightly depending on whether the product has a surface treatment or not, but with a little experience you can easily tell the difference.

Weight and acid test

A clear sign that a product is made of stainless steel is its weight. Stainless steel is a relatively dense material. You can lift the product and feel if it feels extra heavy based on its size, in which case it is a sign that it is made of stainless steel. Acid testing is another method that can give a clear indication, but of course it should not be used on valuable products. By dropping a little vinegar on a part of the product, you can see if it causes a reaction, such as discoloration or sizzling. Stainless steel is acid resistant and does not react to this test.