... Quality: Q235A, B, C, D JIS SS400, American Tandard, Japanese Standard 2. Hot rolled quality carbon steel plate Thickness: 6mm-400mm ... Quality: 20-45#, 20Mn-65Mn, 08F American Standard A36 & European Standards, American Standard 3. Hot rolled low-ally high strength steel ... B C, D, E; Q390A, B, C & European Standards, American Standard 4. Hot rolled boiler steel plate Thickness: 6mm-80mm Material ...