Steels with high carbon equivalent have poor weldability, because in these steels during welding

• A. carbon and other alloying elements get oxidised from the weld pool.
• B. excessive ferrite forms in the heat affected zone leading to poor toughness of the weld.
• C. martensite forms in the heat affected zone leading to poor toughness/ductility of the weld.
• D. segregation of carbon and other element occurs in the weld pool leading to poor properties of the weld.