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.

性能

耐腐蝕性

不銹鋼板材在耐一般腐蝕方面與不穩定型鎳鉻合金304表現出相近的性能。 在鉻碳化物析出溫度區間內長時間加熱,可能會降低321和347牌號合金在強腐蝕性介質中的耐蝕性能。 這些合金主要用於高溫工況,需具備優異的抗敏化性能,以防止在較低溫度下發生晶間腐蝕。

高溫抗氧化性

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.

物理性質

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.