Ms Dish End

Mild steel dish end, also known as low-carbon steel dish end (MS dish end), is a type of carbon steel dish end with a carbon content below 0.25%. It has low strength and hardness and is relatively soft, which is why it is also called a soft steel dish end. Mild steel dish ends undergo proper normalizing and quenching heat treatment during manufacturing to enhance their overall performance, including strength, toughness, and corrosion resistance. The specific grade of steel selected depends on the intended application and the environmental conditions in which the dish end will be used.

At Dingjin, heat treatment of mild steel dish ends would be carried out using anti-deformation devices inside the furnace and quenching cooling equipment. Throughout the heat treatment process-including heating, quenching, and tempering-the openings of the dish ends remain facing downward. Dingjin adopts to use of quenching cooling equipment and anti-deformation devices ensures that the material properties and dimensional accuracy of the mild steel dish ends meet technical requirements. Dingjin's method effectively addresses issues such as insufficient strength caused by inadequate water cooling during quenching, strength differences between the inner and outer surfaces due to uneven cooling, and variations in strength between the surface and core caused by excessive wall thickness. It also ensures both dimensional accuracy and performance of the final product.

· Compared to other types of dish ends, hemispherical heads require the least thickness under the same diameter and pressure conditions. They also have the smallest surface area for a given volume and use the least amount of material.

· The stress distribution is very uniform.

· Due to their manufacturing complexity, they are generally used only in high-pressure, large-diameter pressure vessels, while other types of vessels rarely adopt hemispherical heads.