How do sulfur (S) elements affect weldability of EN10028-2 16mo3 steel plate?

EN10028-2 16Mo3 steel plate equivalent grade is 12Cr1MoV. 16Mo3 refers to the steel carbon content of about 160, while the molybdenum content of about three hundred. Heat treatment: normalizing or normalizing + tempering. EN10028-2 16Mo3 steel plate Welding with other materials is different, the first to be preheated, and after the weld is completed, the weld should be incubated for about 30 minutes. EN10028-2 16mo3 steel plate manganese is an important alloying elements, but also important hardenability of the element, which has a great influence on the toughness of the weld metal

How do sulfur (S) elements affect weldability of EN10028-2 16mo3 steel plate?　

The processing start temperature is generally 1150 ~ 1200 ℃ in the thermal processing, and iron and iron sulfide eutectic has been melted, resulting in cracking during processing. This phenomenon be called hot brittleness of sulfur. This nature of sulfur creates hot cracks during welding of EN10028-2 16mo3 steel plate. Therefore, the sulfur content is generally strictly controlled. The main difference of Ordinary carbon steel, high-quality carbon steel and high-quality steel is sulfur and phosphorus content of EN10028-2 16mo3 steel plate.

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