Since there are different grades of stainless steel, this test might not be perfect for every application.
#Magnet stick code#
You can then use this code to look it up and determine if the ASTM identifies it as stainless steel or not.Īnother way that you can test to see if the object you have is made of stainless steel is to use a magnet. However, for industrial purposes, you can often find the code printed somewhere on the material.
This is a code that ASTM International, which used to be known as the American Society for Testing and Materials, uses to identify the piece.įor example, if you’re buying a piece of jewelry, then the artisan might not include the code since it could ruin its beauty. You should see a four-digit code somewhere on the piece. One way to sometimes determine if something is made of stainless steel is to look for a code. Here are a few ways you can tell if what you have is real stainless steel. Whether you’re buying an appliance, a piece of jewelry, or something else that contains stainless steel, you may wonder if it’s real.īecause stainless steel is quite durable, you might wonder if what you bought is authentic. How Can You Tell If The Stainless Steel Is Real? The magnet slides off rather than sticking to the appliance.
Since there isn’t much iron, there’s nothing generating the magnetic properties. It’s likely because the stainless steel appliance contains some alloy mixture that inhibits the magnetic properties.įor example, the stainless steel appliance may be made of a mix of stainless steel, nickel, manganese, carbon, or even austenite.Īs a result, there isn’t much iron in the alloy. If you’re trying to put a magnet on your stainless steel appliance and it isn’t sticking, then you may wonder why. Why Isn’t The Magnet Sticking To Stainless Steel? The more ferrous the grade of stainless steel is, the more likely the magnet will stick to it. That’s because 304 stainless is austenitic stainless steel. However, if you’re trying to stick a magnet to 304-grade stainless steel, then the magnet won’t stick to it. It all depends on the grade of stainless steel.įor example, if you’re trying to stick a magnet on 409-grade stainless steel, then the magnet will stick to it. Yes, some magnets can stick to stainless steel. It’s the bit of ferrite that forms that becomes magnetic.Īs such, stainless steel is, in most cases, magnetic. That’s because, through the thermal treatment, certain parts of the steel can actually form ferrite. That said, if an austenite stainless steel piece goes through thermal treatment, then it might display some magnetic properties. It contains high levels of austenite instead which does not create a magnetic field. Martensitic stainless steel has magnetic properties because its crystal structure can become ferromagnetic.Īustenite stainless steel isn’t magnetic because it doesn’t contain high levels of iron. Grades 410, 420, and 440 are martensitic stainless steel. They contain high levels of iron which make them highly magnetic. Grades 409, 430, and 439 are ferritic stainless steel. The grades that aren’t magnetic are those made with austenite.
Here are the following grades of stainless steel that are magnetic: However, not all grades have enough iron to give them a strong magnetic field.Īs a result, while some grades may show some magnetic qualities, they aren’t magnetic in the sense that other grades of stainless steel are. Stainless steel usually contains some amount of iron. Some grades of stainless steel are also not magnetic.įor something to become magnetic, it needs to have a certain amount of iron in it. Yes, some grades of stainless steel are magnetic. Here’s what you need to know about whether stainless steel is magnetic or not. If you have a particular project in mind and you’re considering using stainless steel, then you may wonder if it has magnetic properties. Stainless steel is a popular material used for projects large and small.
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