Q235D carbon steel is under technical standard GB/T 700-previous standard or GB/T 3274-present standard. With advantages of moderate carbon content, good comprehensive performance, good combination of strength, plasticity and welding performance, Q235D carbon steel are widely applied in various fields. For example:
Q235D carbon steel are widely used in architectural and engineering structures. Q235D steel are used for making steel bar or building workshop rack, high voltage transmission tower, bridge, vehicle, boiler, container, ship and so on. Q235D carbon steel are also widely used for mechanical parts which are not very high in performance requirements.
Q235D carbon steel can also be used for various mould handles and other unimportant die parts.
Q235D carbon steel are used as punch material also. After quenching, Q235D steel is not tempered directly, and the hardness is 36~40HRC, which solves the phenomenon that the punch is broken in use.
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