High Carbon Steel Welding Defects and Preventive Measures As high carbon steel tends to be hardened, it is easy to appear hot and cold cracks during welding. Measures to prevent thermal cracking Control the chemical composition of the weld, strictly control the content of sulfur and phosphorus, increase the content of manganese, in order to improve the weld structure and reduce segregation. Control the cross-section shape of the weld, width-depth ratio is slightly larger to avoid segregation of the weld center. Suitable welding parameters, welding sequence and welding direction should be selected for high rigidity welding parts. When necessary, take pre-heating and slow cooling measures to prevent the formation of hot cracks. Improve the alkalinity of electrode or flux, in order to reduce the impurity content in the weld, improve the segregation degree. Prevention of cold cracking Preheating before welding and cooling after welding can not only reduce the hardness […]
High Carbon Steel
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