Stainless steel plates have a smooth and clean surface, high plasticity, toughness, and mechanical strength, and are resistant to corrosion from acids, alkaline gases, solutions, and other media. It is an alloy steel that is not prone to rust, but not absolutely rust-free. Stainless steel plates refer to steel plates that are resistant to corrosion from weak media such as atmospheric air, steam, and water, while acid-resistant steel plates refer to steel plates that are resistant to corrosion from chemical erosive media such as acids, alkalis, and salts.

performance

Corrosion resistance

Stainless steel plates exhibit similar resistance to general corrosion as the unstable nickel-chromium alloy 304. Prolonged heating within the temperature range of chromium carbide may affect the corrosion resistance of alloys 321 and 347 in harsh corrosive media. These alloys are primarily used in high-temperature applications, which require strong resistance to sensitization to prevent intergranular corrosion at lower temperatures.

High temperature oxidation resistance

Stainless steel plates exhibit high temperature oxidation resistance, however, the oxidation rate is influenced by inherent factors such as the exposure environment and product morphology.

Physical properties

The overall heat transfer coefficient of metal depends not only on its thermal conductivity but also on other factors. In most cases, these factors include the film coefficient, rust scale, and surface condition of the metal. Stainless steel maintains a clean surface, making it have better heat transfer properties than other metals with higher thermal conductivity. Liaocheng Sandeli Stainless Steel provides technical standards for stainless steel plates, including high-strength stainless steel plates with excellent corrosion resistance, bending processability, toughness at welding sites, and stamping processability at welding sites, as well as manufacturing methods. Specifically, stainless steel plates containing less than 0.02% carbon (C), less than 0.02% nitrogen (N), more than 11% but less than 17% chromium (Cr), and appropriate amounts of silicon (Si), manganese (Mn), phosphorus (P), sulfur (S), aluminum (Al), and nickel (Ni), and satisfying the conditions of 12≤Cr Mo 1.5Si≤17, 1≤Ni 30(C N) 0.5(Mn Cu)≤4, Cr 0.5(Ni Cu) 3.3Mo≥16.0, and 0.006≤C N≤0.030, are heated to 850~1250℃ and then cooled at a cooling rate of 1℃/s or higher. This results in high-strength stainless steel plates with a martensite content of more than 12% by volume, a high strength of over 730MPa, excellent corrosion resistance and bending processability, and good toughness in the heat-affected zone of welding. The addition of molybdenum (Mo) and boron (B) can significantly improve the stamping processability at welding sites.