Magnaflux Ni-Cr Test Pieces are precision-engineered reference panels designed for liquid penetrant testing (LPT). Made from brass plated with a 20-micron nickel-chrome alloy, these panels are stressed to induce linear cracks, providing consistent and measurable flaws for testing penetrant sensitivity and performance. They are ideal for comparing in-use penetrants against fresh products, ensuring ongoing effectiveness and compliance with industry standards.