Boiler steel plate is a steel grade used to manufacture pressure vessels and pipelines. There are various specifications and grades of boiler steel plate. Boiler steel plate is suitable for onshore and offshore facilities, natural gas extraction, petroleum refining, chemical isolation, low temperature transportation, petrochemical and industries such as natural gas production. So, how to judge the quality of boiler steel plate?
1. Weldability
Pressure vessels and boilers are usually manufactured by welding multiple curved steel plates together to form cylindrical or spherical parts. This geometry allows the parts to withstand the strains imposed by pressurized fluids and liquefied gases at low temperatures. Therefore, weldability is one of the most important properties of boiler steel plate.
2. Low temperature toughness
The tensile toughness of the boiler steel plate is essential for determining the mechanical strain resistance of the material, but it also shows the brittleness and ductility. Pressure vessels usually continue to withstand extreme temperatures, which may greatly change the tensile toughness of the steel used in their manufacture.
3. Creep resistance
Creep deformation or cold flow refers to the slow mechanical deformation of materials due to long-term exposure to high levels of mechanical stress. In pressure vessel applications, this is a crucial attribute, because steel grades are subject to large thermodynamic stresses during use. The design of high-quality boiler steel plate has excellent toughness and can cope with environmental pressure and applied pressure.
4. Corrosion resistance
The corrosion resistance of boiler steel plate largely depends on its final application field and the chemical composition of the steel grade, and it can be fine-tuned to deal with low-temperature gases, hydrocarbons, acid fluids, etc.
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