J series of 201 stainless steel | J1, J2, J3, J4, J5 J1: The carbon content is slightly higher than J4, and the copper content is lower than J4. Its processing performance is not as good as J4 material. It is suitable for ordinary shallow deep drawing and large angle deep drawing products such as decorative panels, bathroom products, sinks, and product pipes. J2, J5: Decorative tubes are easy to process, high hardness (both above 96�°), polished and beautiful, but they are easy to burst when used for square tubes or curved tubes (90�°). In terms of flat panel, due to its high hardness, the surface of the panel is more beautiful, and surface treatment such as frosting, polishing, and color plating can be carried out. But the biggest problem is bending, bending is easy to break, planing is easy to burst, so the ductility is not good. J3: High carbon, low chromium and low copper, but because of its high carbon content and low copper content, the material is slightly harder, so it is not suitable for bending with a slightly stronger strength. Compared with 201 stainless steel J1 material, the ductility is not so good, and it is easier to rust in the same environment. 201 stainless steel coil In the field of narrow bands, the emergence of 201 stainless steel J3 can better meet the requirements of pipe manufacturers for corrosion resistance and deformation. Because it can reduce the cost of raw materials for pipe manufacturers, it is sought after by pipe manufacturers in the narrowband field. J3 material is easy to process in veneer, but not difficult. The master of the processing factory said that he used J3 material to bend the board, and there would be an inner seam after it was broken (for black titanium, color board series, sanding board, when it is broken apart, there will be an inner seam when folding). The material of the sink has been bent 90 degrees, and it will not work if it continues. J4: The material of J4 is a relatively high-end variety in the J series of 201 stainless steel. It is suitable for deep drawing products with small angles. Most of the products that need deep drawing and salt spray test will choose it. Such as sinks, kitchen utensils, bathroom products, kettles, thermos cups, door hinges, pots, etc.
