201 material although similar to 304 surface, but containing chemical elements is a world of difference, 201 material into stainless steel before it is even black than iron, after multiple pickling annealing has become everyone usually see "white steel", its surface is just covered with a layer of air isolation layer, if one day he rusted, we do not need to accident, That is because his insulation layer is damaged, so he will rust, there are many user areas to investigate the business responsibility, stainless steel will rust, in fact, 201 stainless steel is really rust, the worse the environment, the easier it is to rust, the environment is good or in the indoor 4-5 years did not rust there are many examples, but clearly J1, J2, J3, J5 is really necessary, It is about different kinds of steel, his characteristics are different, and we should choose according to our own requirements.

J1 material is the most widely circulated material in the market, half of the users will be used in stainless steel door stamping, stainless steel products welding, shallow tensile products, round, elbow, crushing edge and so on are no problem, but not all steel plants are divided into J series, such as Lianzhongji origin is not divided, 201#LH represents the ordinary 201, In fact, it is similar to J1 products, L1 represents high nickel and high nickel, ordinary 201 is about 1 nickel, then L1 is 2-3 nickel, the difference is that nickel contains high copper, rust resistance, and tensile performance is good, but the price difference is thousands of miles, more than 201#J1 material is more than 2000 yuan a ton.

J2 material and J5 price is similar, but in general there is still a difference, J2 material in 1.2 below the simple bending is no problem, but the thickness of more than 1.2 burst the chance is large, but the user after the test feel that in fact J2 and J1 is not much different, but in the grinding of 8K plate is big, respectively. J2 plate will obviously have more sand holes, J1 plate is relatively much better, so J2 plate is only suitable for the process of lassa and ordinary mirror and other requirements are not high, high requirements are not recommended.

The biggest difference between J5 plate and J2 plate is that the hardness is harder than J1 J2, too hard products are not recommended for making process products, the chance of bursting is relatively large, and the peeling and trachoma problems of the plate are relatively more difficult to polish after welding, in fact, it is almost like iron, but in terms of nickel, it is slightly higher than J1. The steel is suitable for stainless steel shapes or structures requiring high strength, stainless steel decorative pipes, industrial products, and stainless steel color plates in the middle market.

J3 material is positioned in the middle between J1 and J2, cheaper than J1, and more expensive than J2, has been in a more awkward situation, because the price is not much different from J1, so J3 plate in the market is also less inventory, in this even 201 are divided into several markets, there is no competitiveness there is no need for mass production, the steel is suitable for stainless steel decorative pipe, cutting and folding processing, Color plate spot shallow stamped products, etc.

J4 board in the market inventory is also quite rare, said the higher the copper content of the material, his stretching performance is better, because it is a high-performance material, suitable for deep drawing stainless steel pot, bowl, water cup, water tank lamp, the price is higher than J1 material 5-600 yuan a ton, although 201#L1 can also make the same product and more. Single L1 material is expensive, in the case of considering the cost performance, J4 can meet the stamping, the price is moderate, but it is understood that many users on the market with J1 stamping, there is no problem, so J1 or the best cost-effective steel.