Mechanical and magnetic properties of partially annealed low-carbon mild steel sheet

AbstractThe relationships between the magnetic permeability (in the form of digital voltmeter readings) and different mechanical properties of partially annealed lowcarbon mild steel sheet have been examined and the boundary conditions for the partial annealing defined. These relationships were statistically analysed and a method is proposed that may be used to monitor the ultimate tensile strength of the low-carbon mild steel sheet during continuous partial annealing. The proposed method is not applicable to the control of two other mechanical properties, namely, 0·2% proof stress and % total elongation; the reasons for this are stated.