Firstly, let's delve into the chemical composition of these steel grades. The EH36 and E36 grades are alloyed with carbon, silicon, manganese, phosphorus, sulfur, chromium, nickel, molybdenum, copper, and nitrogen, among other elements. This precise blend ensures high strength, corrosion resistance, and weldability, crucial characteristics for marine applications.

In terms of mechanical properties, the EH36 and E36 steel plates exhibit impressive yield strength and tensile strength, making them suitable for withstanding the extreme loads and pressures encountered in the ocean environment. Their toughness and ductility allow them to absorb impact without fracturing, crucial for maintaining the structural integrity of ships.

The heat treatment state of these steel plates is also worth mentioning. Typically, they undergo controlled rolling and normalizing processes to enhance their mechanical properties and ensure a uniform microstructure. This heat treatment also reduces the likelihood of internal defects, improving the overall quality of the steel.

Regarding size range, RINA EH36 and E36 steel plates are available in a variety of thicknesses, widths, and lengths to meet the specific needs of different shipbuilding projects. This versatility allows for the efficient use of materials and reduces waste during the construction process.

Impact testing is a crucial part of the quality control process for these steel plates. This testing involves exposing the steel to low-temperature conditions and measuring its resistance to cracking or breaking under impact loads. The EH36 and E36 grades typically demonstrate excellent impact toughness, ensuring their reliability in extreme weather conditions.

The primary applications of RINA EH36 and E36 steel plates are in the construction of hulls, decks, and other critical structural components of ships and marine vessels. Their high strength and corrosion resistance make them ideal for use in saltwater environments, where they are exposed to constant moisture and potential corrosion.

Lastly, TJC Steel, as a leading supplier of marine steel plates, has extensive experience in providing EH36 and E36 grades to the shipping industry. Their products are known for their consistent quality, reliable performance, and competitive pricing. With a track record of successful supply cases, TJC Steel has established itself as a trusted partner in the marine steel market.

In conclusion, the RINA EH36 and RINA E36 marine steel plates are high-performance materials essential for the safe and efficient operation of ships and marine structures. Their optimized chemical composition, mechanical properties, and heat treatment state make them ideal for withstanding the rigors of the ocean environment. With TJC Steel's reliable supply, these steel plates continue to play a crucial role in the global shipping industry.