Application and heat treatment of S460QL equivalent ASTM

The toughness index of Q345B steel should be tested by impact test at 20 ℃. Although the strength of Q345B steel and Q345A steel are the same, the S / P control of Q345B steel is more strict, and the ambient temperatures of S460QL equivalent ASTM, Q345B steel and Q345A steel are different. The cold impact test refers to the impact test at a certain temperature to obtain the energy consumed by punching the specimen. The more energy consumed, the higher the toughness of the material. Q345A is not subject to impact test. So Q345B steel is better than Q345A steel.

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As the thickness and hardness of S460QL equivalent ASTM increase, the tendency to crack at the cutting edge increases. In order to prevent the S460QL equivalent ASTM from cutting cracks, preheating should be carried out before S460QL equivalent ASTM cutting. Special attention should be paid to preheating to make the entire S460QL equivalent ASTM interface evenly heated to avoid local overheating in the area contacting the heat source. If the whole S460QL equivalent ASTM cannot be preheated, the partial preheating method can be used instead.

For wear-resistant steel plate, it is not the higher the hardness, the better the wear resistance! Hardness is the basis of excellent wear resistance of S460QL equivalent ASTM, wear-resistant steel plate, but the relationship between hardness and wear resistance is not in direct proportion. The reason why wear-resistant steel plates are wear-resistant is that they have hard particles and soft matrix. Generally, in the process of wear, there will be some falling substances, which will be incorporated into the soft matrix and will not cause great damage to the surface.

In addition to quality assurance, service is also important for the competition of steel suppliers. All the after-sales service personnel of the company have received professional training and assessment. The steel products supplied by our company enjoy the life-long quality problem replacement service. In the process of using our steel S460QL equivalent ASTM products, if there is any problem, just contact us in time, and our after-sales service personnel will look for countermeasures and solve the problem with you as soon as possible.