We make a simple comparison of these materials: SUS201 series of materials have the disadvantage that 18% of the chromium content and low nickel content do not reach equilibrium and form ferrite. For this reason, in the 200 series stainless steel The chromium content is reduced to 15% to 16%, and in some cases it is reduced to 13% to 14%. Its corrosion resistance is not comparable to that of SUS304 & 316 woven stainless steel wire mesh, which is common in the corrosion areas of deposition areas and gaps. Under conditions, manganese and in some cases copper reduces the effect of repassivation. The destruction rate of 200 series steel under these conditions is about 10-100 times that of 304 woven stainless steel wire mesh. Also, it is often impossible to control the residual sulfur and carbon content of these steels in production, and the materials cannot be traced back to trace, even in the recycling of materials. If Cr-Mn steels are not specified, they can become a dangerous scrap mix, resulting in castings with unexpectedly high manganese content.
304 stainless steel is a versatile stainless steel material with stronger rust resistance than the 200 series stainless steel. High temperature resistance is also good, the general use temperature limit is less than 650 °C. 304 woven stainless steel wire mesh has excellent stainless corrosion resistance and good resistance to intergranular corrosion. For oxidizing acids, it is found in the experiment that 304 woven stainless steel wire mesh has strong corrosion resistance in nitric acid below the boiling temperature of ≤ 65%. It also has good corrosion resistance to alkaline solutions and most organic and inorganic acids.
The density of 316 woven stainless steel wire mesh is 8.03 g/cm3, which is generally used for austenitic stainless steel. Corrosion resistance is better than 304 woven stainless steel wire mesh, with good corrosion resistance in the production of pulp and paper. Moreover, 316 woven stainless steel wire mesh is also resistant to erosion by marine and aggressive industrial atmospheres.
What are the main reasons for the broken wire of stainless steel wire mesh:
1. When the mold is on the machine, the oil is cut off or the water is cut off, causing the mold to run a large hole distance in a short time, and the compression ratio is out of adjustment, thereby breaking the wire. The solution is to add lubricant to each mold in time to ensure its cooling and lubrication.
2, the size adjustment of the mold on the mold is wrong, in the weaving process will cause the proportion of the normal compression ratio is chaotic, resulting in disconnection. The solution is to ensure the size of the mold.
3. A certain road in the mold consumes too fast, resulting in a misalignment of the compression ratio before and after weaving, showing a broken wire, mainly showing a few broken wires in one position. The solution is to change the mold and adjust the compression ratio before and after until normal.
4. When the weaving process presents a wicker wire, the speed of the wire will be too fast, which will cause the stainless steel wire to break. The solution is to change the mold to ensure that the phenomenon of wicker wire no longer occurs.
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