Stainless steel strips will also be magnetic. 304 stainless steel strips are used in auto parts.
People often think that magnets absorb stainless steel to verify its quality and authenticity. It does not attract and has no magnetism. It is considered to be good and genuine. If the magnet is magnetic, it is considered to be a counterfeit. In fact, this is an extremely one-sided one. Unrealistic wrong identification method. There are many types of stainless steel belts, and they can be divided into several categories according to their organizational structure at room temperature:. One. Austenite type: such as three zero four, three two one, three one six, three one zero and so on. two. Martensitic or ferrite type: such as four thirty, four two zero, four one zero and so on. Austenite is non-magnetic or weakly magnetic, and martensite or ferrite is magnetic. The stainless steel usually used as decorative tube sheet is mostly austenitic type 304 material, generally speaking, it is non-magnetic
People often think that magnets absorb stainless steel to verify its quality and authenticity. It does not attract and has no magnetism. It is considered to be good and genuine. If the magnet is magnetic, it is considered to be a counterfeit. In fact, this is an extremely one-sided one. Unrealistic wrong identification method.
There are many types of stainless steel belts, and they can be divided into several categories according to their organizational structure at room temperature:.
One. Austenite type: such as three zero four, three two one, three one six, three one zero and so on.
two. Martensitic or ferrite type: such as four thirty, four two zero, four one zero and so on.
Austenite is non-magnetic or weakly magnetic, and martensite or ferrite is magnetic.
The stainless steel usually used as decorative tube sheet is mostly austenitic 304 material. Generally speaking, it is non-magnetic or weak magnetic. However, due to smelting, it may also be caused by chemical 304 stainless steel band fluctuations or different processing conditions. Magnetic, but this cannot be considered counterfeit or substandard. What is the reason?
As mentioned above, austenite is non-magnetic or weakly magnetic, while martensite or ferrite is magnetic. Due to component segregation or improper heat treatment during smelting, a small amount of martensite or Ferrite structure, in this way, 304 stainless steel will have weak magnetic properties.
In addition, the 304 stainless steel undergoes cold processing, the structure will also be transformed into martensite. The greater the degree of cold working deformation, the more martensite is transformed, and the greater the magnetic properties of the steel. Just like a batch of steel strip, it produces Φ76. Tube, without obvious magnetic induction, produces Φ9.Five tubes. The magnetic induction is more obvious due to the larger bending deformation. The square rectangular tube produced from ultra-thin stainless steel strip has a larger deformation than the round tube, especially the corners. Intense magnetism is more obvious.
In order to completely eliminate the magnetic properties of 304 steel caused by the above-mentioned reasons, the austenite structure can be restored and stabilized by high-temperature solution treatment, thereby eliminating the magnetic properties.
In particular, the magnetism of 304 stainless steel caused by the above reasons is not at the same level as the magnetism of other materials, such as 430, carbon steel. That is to say, the magnetism of 304 steel is always It shows weak magnetism.
This tells us that if stainless steel is weakly magnetic or non-magnetic at all, it should be judged as 304 or 316 material. If it is the same as carbon steel, it shows strong magnetism, because it is judged to be not 304 material. , Precision stainless steel belt.
What are the application fields of stainless steel belts in auto parts? This question 1 has been the focus of many consumers' attention. As early as 2003, consumers were deeply interested in stainless steel products. What are the reasons for the majority of consumers Such people are fascinated by stainless steel. This should start from the consumer concept of the general public. First, every consumer understands that stainless steel strips are not rusty, beautiful in appearance, and interested in high-end quality, and secondly, they are interested in positioning and durable stainless steel products. Sex has produced a strong interest, so with the improvement of the quality of life in the past decade, people have a heartfelt love for stainless steel appearance products.
Everyone knows that ordinary car interiors, appearance nameplates, exhaust pipes, stainless steel belt price built-in structures, etc. will use stainless steel materials, and with people’s understanding of the durability of stainless steel, it has become an integral part of the car. For example: motors, cylinders, instrument panels, etc. are all made of stainless steel parts. These are not enough. In fact, there are too many places where stainless steel materials are used in automobile engines and internal structure parts. Cars generally use 316 stainless steel strips and 304 stainless steel strips. The 316 grade is mainly reflected in the car chassis. Why is it used in the chassis? It is because the 316 grade is anti-corrosive. Not only is it resistant to acid and alkali, but it is not easy to rust. In addition, it is completely resistant to ordinary harsh environments. Therefore, the 304 grade is mainly used for application and appearance parts, as well as built-in accessories.
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