Chemical composition of grade S355MC hot rolled automotive steel sheet

Q690D grade is a low-alloy high-strength structural steel, belonging to the structural steel category. Q690D steel plate executive standard: GB/T16270-2009. Q is the expression of yield strength, 690 is its lower limit yield value, and D is its grade. Thi

Q690D grade is a low-alloy high-strength structural steel, belonging to the structural steel category. Q690D steel plate executive standard: GB/T16270-2009. Q is the expression of yield strength, 690 is its lower limit yield value, and D is its grade. This grade also has a higher yield strength and tensile strength. Q690 series grades also include Q690C, Q690D, Q690E, Q690F. Delivery status of steel S355MC hot rolled automotive steel sheet: It should be delivered in quenched and tempered state. In addition, this grade can be delivered according to some special requirements of customers, but it should be indicated in the contract.

For a ship, the choice of medium and thick ship plate is very important, it is an important part of the ship frame. The pressure bearing capacity of S355MC hot rolled automotive steel sheet, medium and thick ship plates is very strong. Secondly, because it is a ship plate, it must be driven in water, so of course the corrosion resistance is better, otherwise it will bring danger to buyers. Moreover, the service life of the ship will be increased. Regular inspection of the ship plate can ensure the safety of sailing. You can also know whether the ship plate is defective, so you don't have to worry about water seepage when you sail.

As the thickness and hardness of S355MC hot rolled automotive steel sheet increase, the tendency to crack at the cutting edge increases. In order to prevent the S355MC hot rolled automotive steel sheet from cutting cracks, preheating should be carried out before S355MC hot rolled automotive steel sheet cutting. Special attention should be paid to preheating to make the entire S355MC hot rolled automotive steel sheet interface evenly heated to avoid local overheating in the area contacting the heat source. If the whole S355MC hot rolled automotive steel sheet cannot be preheated, the partial preheating method can be used instead.

The strip steel thickness is generally below 6mm, which is convenient for crimping and processing. You should choose the S355MC hot rolled automotive steel sheet, strip steel specifications according to your own purposes. The specifications and materials used for different purposes are different, so you must confirm it before buying. It is best to ask professionals to give advice before purchasing strip steel, and purchase the specifications and types you need according to the corresponding requirements.

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