Rings, hooks are used HPB235, shall not be used for cold processing of what is the meaning of the steel bar, the hook, what is the meaning of the hook, please explain more white, thank you
Rings, hooks in buildings used in the elevator shaft, rings, hooks generally use round steel 18--25mm, processing rings, hooks need complex processing, thread ribbed cold processing, steel reinforcement is hard, brittle, easy to break. And easy to hurt wire rope. Round steel completely avoids these disadvantages.
HPB235 is commonly known as the first grade steel, the national standard provides 0.2% of the carbon content of about 26%. Strong deformation, not brittle fracture. After cold working, the lattice arrangement changes, the hardness and brittleness.HPB300, HRB335, HRB400 GB provisions of carbon content of 0.25% extension of about 14% compared to hard brittle. Not directly bear the dynamic load.
Rings, hooks are things hanging thingsHPB235 is better than other reinforcing steel bars, especially the cold working steel bars, and the flow length is longer
