NK Grade D70 is a cutting-edge ultra-high-strength steel plate certified by ClassNK for extreme marine applications. With a minimum yield strength of 690 MPa and tensile strength of 790-940 MPa, it is engineered for critical structural components in icebreaking vessels, offshore wind turbine foundations, and mega-container ship reinforcements.
The plate undergoes rigorous Charpy V-notch impact testing at -20°C, ensuring exceptional fracture resistance in polar conditions. Compliant with ClassNK Rules for Materials and Welding, it features advanced weldability, fatigue endurance, and corrosion resistance.
NK D70 is technically equivalent to ABS D70 and LR DH70, making it ideal for next-generation maritime projects demanding maximum strength-to-weight ratios under dynamic loads and extreme environmental stresses.
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