NK AQ70N and NK A70N are high-strength shipbuilding steel plates specifically designed to meet the rigorous demands of the marine industry. These steel grades exhibit excellent mechanical properties, chemical composition, and heat treatment characteristics, making them suitable for a wide range of shipbuilding applications.

Chemical Composition

The chemical composition of NK AQ70N and NK A70N steel plates is carefully balanced to achieve the desired strength and durability. These steels primarily consist of iron, with the addition of carbon, silicon, manganese, phosphorus, sulfur, nickel, chromium, molybdenum, copper, titanium, nitrogen, aluminum, vanadium, and boron. The precise proportions of these elements are tailored to optimize the steel's strength, toughness, and weldability.

Mechanical Properties

The mechanical properties of NK AQ70N and NK A70N steel plates are impressive. These grades possess high yield and tensile strengths, enabling them to withstand significant loads and pressures. Additionally, they exhibit good ductility and toughness, allowing them to absorb impact and deformation without failing. The steel's excellent weldability further enhances its versatility in shipbuilding applications.

Heat Treatment State

NK AQ70N and NK A70N steel plates are typically delivered in a normalized or quenched and tempered state, depending on the specific requirements of the end-use application. Normalized steel has a softer and more ductile structure, suitable for welding and forming operations. Quenched and tempered steel, on the other hand, offers increased strength and toughness, making it ideal for applications requiring high resistance to impact and fatigue.

Dimensional Range

NK AQ70N and NK A70N steel plates are available in a wide range of thicknesses, widths, and lengths. The exact size range can vary depending on the manufacturer and availability, but generally, these steels can be customized to meet the specific dimensions required for different shipbuilding projects.

Impact Testing

Impact testing is a crucial aspect of ensuring the reliability and safety of NK AQ70N and NK A70N steel plates. These steels undergo rigorous impact testing to assess their resistance to low-temperature brittleness. The results of these tests ensure that the steel plates can perform reliably in cold environments, crucial for marine applications where ships may operate in frigid climates.

Major Applications

NK AQ70N and NK A70N steel plates are widely used in various shipbuilding applications. They are particularly suitable for the construction of hulls, decks, and other structural components that require high strength and durability. Their excellent mechanical properties and weldability make them ideal for use in both commercial and military vessels, including cargo ships, cruise ships, and naval vessels.

Supply Cases by TJC Steel

TJC Steel, a leading supplier of high-quality steel products, has extensive experience in supplying NK AQ70N and NK A70N steel plates to shipbuilding clients. The company ensures that the steel plates comply with strict industry standards and meet the specific requirements of each project. TJC Steel's expertise in steel processing and fabrication further enhances the quality and efficiency of its supply chain, ensuring timely delivery and customer satisfaction.

In conclusion, NK AQ70N and NK A70N steel plates are high-performance materials essential for the marine industry. Their optimized chemical composition, mechanical properties, and heat treatment characteristics make them ideal for various shipbuilding applications. With the reliable supply and processing capabilities of companies like TJC Steel, these steel plates continue to play a crucial role in the construction of safe and durable ships.