At present, the application effect of 40Cr low-alloy high-strength steel plate in the industrial field is very good. Its usability is very convenient and does not need heat treatment. When we use 40Cr low-alloy high-strength steel plate, it is generally applied to the required place under the condition of hot rolling and air cooling. The practicability of 40Cr low-alloy high-strength steel plate is mainly manifested in some large structures, such as shipbuilding, production departure, boiler equipment, bridges and so on. It is an important material in many industries.
The properties of 40Cr low-alloy high-strength steel plate can be roughly divided into five points:
(1) The yield strength is high and the expected effect is achieved;
(2) The high toughness meets the requirements of large-scale welding components and high fracture toughness;
(3) Good welding and cold forming properties;
(4) Low cold brittle transition temperature;
(5) Good corrosion resistance.
