What is the difference between 304 stainless steel wire mesh, 304H and 304Lstainless steel wire mesh?
Type 304 stainless steel wire mesh refers to materials that are widely used in the manufacture of wire mesh. These materials contain 18% chromium or 8% (18-8) nickel on the basis of stainless alloys. This material will not rust when placed outdoors. Even if the temperature rises to 1400 degrees Fahrenheit, it will not be oxidized.The 304L model is similar in nature to the 304 stainless steel wire mesh model. The difference between the two is that the 304L stainless steel wire mesh material has better braiding and soldering characteristics due to its lower carbon content.
In fact, the content of chromium and nickel is 304 stainless steel wire mesh, the composition contains 18% chromium (Cr), 8% nickel (Ni), but the main difference is the difference in carbon content.
304L stainless steel wire mesh is ultra-low carbon stainless steel, the carbon content is reduced to less than 0.03%, which can avoid intergranular corrosion, and theoretically the effect of stress corrosion resistance is stronger than 304 stainless steel wire mesh, but the effect is not obvious in practical applications. The purpose of reducing carbon and adding titanium is the same, but the 321 smelting cost of adding titanium is relatively high, the molten steel is thick, and the price is relatively expensive.
H in 304H refers to high temperature, high carbon content is the guarantee of high temperature strength, GB150 requires austenitic steel to be used at 525 degrees or more, carbon content is not less than 0.04%, carbide is strengthening phase, especially high temperature strength Better than pure austenite.
Among the three, the highest carbon content is 304H, and the lowest carbon content is 304L, while the 304 stainless steel has a carbon content between the two. The higher the carbon content, the worse the corrosion resistance of stainless steel wire mesh and the easier it is to rust. The difference in carbon content also causes the price to vary
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