304 hot rolled stainless steel sheet is based on 300 series austenitic stainless steel and produced through hot rolling processes. The rolling temperature typically exceeds 1100°C, forming the steel slab into plates at high temperatures, suitable for producing thicker gauges. Compared to cold rolled sheets, hot rolled sheets feature an oxidized surface (typically No.1 finish), a broader thickness range (above 3mm), and good mechanical and processing properties.

310S stainless steel sheet belongs to the 300 series high-alloy austenitic heat-resistant steel, with chromium content as high as 24%–26% and nickel content of 19%–22%, making it one of the best high-temperature resistant stainless steels commonly available. The “S” in 310S stands for ultra-low carbon (carbon content ≤0.08%), ensuring minimal carbide precipitation in high-temperature environments, thereby maintaining excellent oxidation resistance and intergranular corrosion resistance. This material can be used long-term in high-temperature environments up to 1000°C–1150°C, with short-term use temperatures reaching up to 1200°C.