How much do you know about boiler plates?

It is used to manufacture various boilers and important accessories. Since the boiler steel plate works under high pressure at medium temperature (below 350°C), in addition to high pressure, it is also subjected to impact, fatigue load and water and gas corrosion. It is required to ensure a certain strength. Must have good welding and cold bending properties. Such as: 20g, 16Mng, etc.

Purpose of boiler plate

Mainly used for making boilers.

Heat treatment: hot rolling, normalizing, controlled rolling, annealing, tempering + normalizing, quenching and tempering.

Boiler plate production process route

20g (Ti) boiler plate is a kind of steel with higher comprehensive mechanical properties, relatively pure steel, and the composition of smelting components and micro-alloying elements are more sensitive to the effects of various properties. Therefore, the key to the 20g(Ti) production process lies in optimizing the smelting composition, reducing the total amount of inclusions in the steel, selecting appropriate microalloying elements, using controlled rolling, improving the quality of the plate surface, and stabilizing the application of technologies such as aging impact. The technical route of 20g is: high-quality molten iron → purification treatment → smelting of composition optimization and steel purification → microalloying and refining of molten steel → protective pouring → high-quality slab → controlled heating → temperature-controlled rolling → shape and thickness control → Controlled Cooling → Products.

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