Some common defects found in steel coils include surface defects such as scratches, pits, or dents, as well as edge defects like burrs or cracks. Other defects can include coil set or crossbow, which refers to the shape of the coil being out of alignment or having a curved shape. Additionally, defects such as oil or rust stains, laminations, or variations in thickness can also be found in steel coils.
Some common defects found in steel coils include surface defects such as scratches, dents, and rust spots. Other defects may include coil breaks, which are cracks or breaks in the steel, as well as wavy edges, uneven thickness, and coil set, which is when the coil has a permanent curvature.
Some common defects found in steel coils include surface defects like scratches, indentations, and pits, as well as internal defects such as cracks, lamination, and segregation. Other defects can include edge wave, coil breaks, and coil set.