Q355HYD-Z35 steel plate for offshore structures

Heat treatment of Q355HY steel plate: normalizing, controlled rolling, thermo mechanical rolling, normalizing rolling.

Q355HYD-Z35, Z35 is the Z-direction performance indication method, that is, the thickness direction performance.

Q355HYD-Z35 steel plate is for offshore structures. The executive specification is GB/T 4283. Q stands for yield strength, 355 stands for yield strength value, HY stands for offshore, and D is quality grade.