Mazut comes in various grades, primarily differentiated by their sulfur content and viscosity. The most common grades are M-100, M-40, and M-50. M-100 is a heavier grade with higher sulfur content, often used in large power plants. M-40 and M-50 are lighter, with lower sulfur content, and are typically used in smaller industrial applications or in regions with stricter environmental regulations. The choice of grade depends on the specific requirements of the machinery and the regulatory environment.
