Steel Plate for Hydropower

Product Advantages

• Ultra-high strength for lightweight design

  As water head (elevation difference) and installed capacity increase, the strength requirements for steel become increasingly demanding. Replacing traditional 800MPa-grade steel with 1000MPa-grade plates can reduce structural weight by approximately 20%, while also decreasing welding consumables and construction time. The strength of 1200MPa-grade products can even reach 1.5 to 2 times that of conventional steel.

• Excellent low-temperature toughness

  Hydroelectric stations are often located in high-altitude or cold regions, requiring steel to maintain high toughness at low temperatures. Advanced hydropower steel can guarantee impact performance exceeding 100J even at -60°C.

• Superior weldability (CF steel characteristics)

  This is one of the most prominent advantages of hydropower steel. Through low welding crack susceptibility design (i.e., CF steel, such as WDB620), preheating before welding and post-weld heat treatment can be eliminated, greatly simplifying on-site construction. This is achieved through strict control of carbon equivalent (Ceq) and welding crack susceptibility index (Pcm).

• Excellent resistance to lamellar tearing (Z-direction performance)

  For sections subjected to tensile forces in the thickness direction, hydropower steel must exhibit excellent Z-direction performance to prevent lamellar tearing.

• High purity and stability

  Advanced processes such as secondary refining and vacuum degassing ensure high purity and consistent performance of the steel.