The difference between SUS301 and SUS304 hardware shrapnel

Everyone knows that the metal shrapnel is made of stainless steel, but there are two types: SUS301 and SUS304. Customers often ask about the difference between the two, they will ask: 'What material does your metal stamping manufacturer use for the metal shrapnel? 'Why don't you use SUS304 for your hardware shrapnel?'. 'Can you help me use SUS304' to make hardware shrapnel? '　　 Today, I have summarized these issues. Please take a look at the following. Our metal stamping manufacturer has been engaged in hardware for a long time. The production of shrapnel and electronic contact piece has a little understanding of the characteristics of these materials, so the difference between these two materials is listed here, not to distinguish the high and low, but to let everyone know more. 　　 Both belong to the horse Stainless steel, but there are subtle differences between the two, mainly in the content of Cr (complex) and other elements, so the performance is different. Now it is used in the production of metal shrapnel, electronic contact sheet materials, in China SUS301 is mainly used, while 304 is mostly used in Hong Kong, and both materials are used abroad. Everyone will choose the material that is most suitable for the processing technology and ability of our factory, and use different technologies to achieve the best needs. The effect: life, feel, etc.. 　　SUS304 (stainless steel): the most used stainless steel, because it contains Ni, it has better corrosion resistance and heat resistance than Cr steel, and has low temperature strength, so the mechanical properties are very good, and the work hardening is very good Large, not hardened by heat treatment, non-magnetic, good strength, relatively inelastic. It is often used with a thickness between 0.4T and 1.0T. Therefore, it is widely used in Brackets that require structural strength. The application must specify the number of stages to achieve Design requirements. Generally, 3/4H is best. If it needs to be drawn and used in LCD brackets, it is generally best to use 1/2H. However, in order to save money, some places where companies need to use SUS304 are generally They are all replaced by SUS430. 　　 SUS301 (stainless steel): Cr (chromium) composition is lower than SUS304, poor corrosion resistance, but cold processing can get a very high degree of traction and hardness, its characteristics and uses are wide, due to its good elasticity, so At present, notebooks are often widely used to prevent EMI as elastic contact parts, but the commonly used thickness is between 0.4T and 0.07T. The number of grades must be specified for use in order to meet the design requirements (such as elasticity, strength). Note that the 301 material has metal crystallinity directionality. The higher the number, the harder and more brittle. If you do not pay attention to the molding, it is easy to cause corners and sidewall cracks.