Which aluminum plate materials can be bent?

The hardness of the aluminum plate is the key to whether the bending is cracked. The hardness of the aluminum plate is too high and it is easy to crack. The hardness of the aluminum plate is related to the grade and state of the aluminum plate.

  1. Aluminium plate grade series that can be bent: usually 1 series, 3 series, and 5 series aluminum plates are often used for bending.
  2. Series of aluminum plates that are not used for bending: The 6 series and 7 series have high hardness. Generally, they are delivered in the state of medium-thick aluminum plates. They are not used for bending. If they are bent, they must be annealed to the 0 state before they can be bent.

The relationship between the state of the aluminum plate and the bending

  1. The hardness of pure aluminum is not very high, and the commonly used ones are 1060, 1100, 1050, etc., which can be bent;
  2. 3 series aluminum manganese alloy aluminum plate: 3003, 3005, 3A21, etc. can also be bent;
  3. 5 series aluminum-magnesium alloy plate, 5052H32 is the most commonly used, it will not crack when bent at 90 degrees.

The relationship between the state of the aluminum plate and the bending

The state of aluminum plate is divided into full hard, semi-hard, and soft state (usually the soft state is called O state)

  1. Hard state: The bending effect of full hard is basically not very good, such as H18, H19, H38, etc. are all hard, 6061, 2024, 7075 T6, T651 are hardened plates and cannot be bent;
  2. Semi-hard: Semi-hard aluminum plates can basically be bent, such as H24;
  3. Soft state: 0 state, 5052-0 state, 5083-0 state, etc., soft bending is definitely no problem, and the bending zero degree angle is 180 degrees. This state must be used, which is suitable for some special-purpose products. Because it is too soft and low in strength, it has relatively few applications.

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