Carbon (C): The content does not exceed 0.18%.
Manganese (Mn): The content is between 0.70% and 1.60%.
Aluminum (Al): The content is at least 0.015%.
Silicon (Si): The content is between 0.10% and 0.50%.
Phosphorus (P): The content does not exceed 0.04%.
Sulfur (S): The content does not exceed 0.04% (Note: The content of sulfur (S) in reference article 1 is ≤0.4, but this is an older or possible error. Reference articles 3 and 4 both indicate that the sulfur content should be ≤0.04%).
Niobium (Nb): The content is between 0.015% and 0.050%.
Vanadium (V): Also known as vanadium (V), the content is between 0.030% and 0.100%.
In addition, the yield strength σs of AH32 steel plate is 315 MPa, with good toughness, strength, corrosion resistance, welding performance, processing performance and surface quality. Its Mn/C ratio should be above 2.5 and produced by a steel mill approved by the ship inspection department. AH32 steel plate has been certified by nine classification societies including ABS in the United States, BV in France, LR in the United Kingdom, GL in Germany, DNV in Norway, RINA in Italy, NK in Japan, CCS in China, and KR in South Korea. It is a special steel plate for ships and marine engineering, mainly used to manufacture hulls and decks of ocean-going, coastal and inland shipping ships.
