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Properties of high strength hull structural steel

High strength:
The yield strength of general strength hull structure steel is 6s = 235 MPa, while the yield strength of high strength hull structural steel is above 315 MPa;

Good toughness and plasticity:
In order to prevent fracture accident and brittle fracture at low temperature, high strength hull structural steel has good elongation (δ > 20%), its toughness (AK) at - 40 ° C is not less than 50% of normal temperature, it can be cold bent, and can be used as engineering structure in severe cold area;

Good process performance:
As the steel for hull structure, the high strength hull structural steel has excellent processing and welding performance; the high strength hull structural steel is mostly hot-rolled and normalized (or annealed) to various specifications of sections or plates. Generally, all kinds of engineering structures and parts made with high strength hull structural steel by stamping and welding do not need heat treatment.