Causes of ASTM A242 Type1 steel plate cracks

The reason for the cracks of ASTM A242 Type1 steel plate is the strength, hydrogen efficiency, welding method and other factors. In fact, cracks are not easy to damage the wear resistance of ASTM A242 Type1 steel plate, and the quality of ASTM A242 Type1 steel plate will not be damaged. It is normal.

1. The key to the hard bottom trend of ASTM A242 Type1 steel plate lies in its composition, plate thickness, welding method and refrigeration standard. The greater the tendency of the ASTM A242 Type1 steel plate to hard bottom, the more likely it is to produce cold cracks.

2. The effect of hydrogen and hydrogen is one of the key factors that cause ASTM A242 Type1 steel plate to resist aging and cold cracking, and has the characteristics of delay time. The higher the hydrogen content of ASTM A242 Type1 steel plate, the stronger the crack sensitivity.

3. Anti-aging ground stress: The tendency of delayed time cracks caused by ASTM A242 Type1 steel plate is not only its hard bottoming tendency and hydrogen effect, but also the anti-aging ground stress.

The main ground stresses of ASTM A242 Type1 steel plate include welding stress caused by uneven heating and cooling, structural ground stress caused by changes in metal materials, and structural self-constraint.