Cradle to Gate
Identity ID
b321c569-74e6-4d93-8cff-e487406796f2
Materials
Associated ID
0f0c9c30-fcdf-4c42-9108-f77e8022f107
Included activities starts
Included activities ends
Description
Q235B carbon steel medium and heavy plate subjected to heat treatment is a medium and heavy carbon steel plate processed through heat treatment techniques, classified as a low-carbon steel grade according to Chinese standard GB/T 700. Q235B steel is widely used in engineering and construction due to its good ductility, toughness, and weldability. Heat treatment can further enhance the mechanical properties of this steel, such as strength and hardness, while improving its wear resistance and impact resistance. The production process of heat treated medium and heavy plates includes heating, soaking, cooling, and post-treatment, covering energy consumption, material consumption, waste management, and environmental emissions associated with the production process. The dataset was formed by merging data from multiple sources.
Activity Description
The production process of heat-treated medium and heavy plates includes heating, soaking, cooling, and post-treatment of the plates, covering energy consumption, material consumption, waste management, and environmental emissions required during the production process.
Process Description
Thermally treated medium-thick plates are steel plates whose mechanical and physical properties are enhanced through precise heat treatment processes. The heat treatment process involves heating, holding at temperature, and cooling, which are designed to modify the microstructure of the steel, thereby improving its strength, toughness, hardness, and wear resistance. Q235B carbon steel thermally treated medium-thick plate is a medium-thickness carbon steel plate processed through heat treatment and belongs to the low-carbon steel grade specified in the Chinese standard GB/T 700. Due to its good ductility, toughness, and weldability, Q235B steel is widely used in engineering and construction fields. Heat treatment can further enhance the mechanical properties of this steel, such as strength and hardness, while improving its wear resistance and impact resistance.
Time period
2021
2026
Geography
China
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
Heat treatment of medium and heavy plates is a critical process aimed at improving the mechanical properties and physical characteristics of steel plates by controlling heating and cooling. This process includes several main steps: normalizing, quenching, and tempering. The plate is heated to an appropriate temperature, typically above the critical point of the steel, and then uniformly cooled either in a furnace or in air. Subsequently, the steel plate is reheated to a higher temperature and then rapidly cooled (or sometimes slowly cooled), usually in water or oil. Finally, to eliminate the brittleness induced by quenching, the steel plate is reheated to a lower temperature and then cooled again.