Typical hysteresis loop for a conventional grain-oriented electrical steel grade M4.
The blue point denotes remanence Br = Jr (for H = 0). The green point denotes coercivity Hc (for B = J = 0).
Both remanence and coercivity should be measured after magnetic saturation, at which Jsat and Msat is reached (does not increase anymore). There is no limiting magnetic flux density Bsat value because it will keep increasing as long as the applied magnetic field strength H is increasing.
This loop has a high squareness ratio.
coercivity_remanence_soft_magnetic_materials_magnetica.png
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