Braking band of a disc brake disc, said braking band being defined by an annular band body arranged around a brake disc rotation axis or axis of rotation (X-X); said band body being made of a base metal, preferably grey cast iron or steel or aluminum or its alloys; said braking band comprising at least one braking surface (2a or 2b); wherein at least one portion of said at least one braking surface (2a or 2b) comprises a surface coating suitable to increase the tribological performance and/or resistance to wear and/or to corrosion of said portion of the braking surface with respect to said base metal, said surface coating having an average thickness (s), wherein said braking band comprises at least one marking which is made on said surface coating and consists of at least one recess extending from the surface of said surface coating to a predefined depth (h) not exceeding the average thickness (s) of said surface coating, in use the loss of thickness of the surface coating due to wear resulting in a corresponding decrease in depth (h) of said at least one recess, said marking thus acting as an indicator of consumption of said surface coating, wherein said surface coating consists of at least one layer of material deposited on top of the base metal which said band body is made of, wherein said surface coating consists of two or more superimposed layers, preferably of different materials, wherein said band body consists of a base metal chosen from grey cast iron or steel, wherein said surface coating consists of: - a base protective layer which consists of chromium carbide (Cr3C2) and Nickel-Chromium (NiCr), or Nickel-Chromium (NiCr), Iron (Fe), Molybdenum (Mo), Cobalt (Co), Manganese (Mn) and Aluminium (Al), and is obtained by deposition with a spray deposition technique, preferably with HVOF (High Velocity Oxygen Fuel) technique, or HVAF (High Velocity Air Fuel) technique or KM (Kinetic Metallization) technique; and - a surface protective coating which is constituted by tungsten carbide, iron (Fe), chromium (Cr) and aluminum (Al) and is obtained by depositing on the base protective layer tungsten carbide, iron (Fe), chromium (Cr) and aluminum (Al) in particle form with a spray deposition technique, preferably with HVOF (High Velocity Oxygen Fuel) technique or HVAF (High Velocity Air Fuel) technique or KM (Kinetic Metallization) technique, and wherein the portion of said at least one braking surface (2a or 2b) coated by said base protective layer is defined by a nitrocarburized layer of said base metal and has a rough profile in radial or circumferential cross-section with respect to the centre of the braking band. wherein said braking band comprises at least one marking which is made on said surface coating and consists of at least one recess extending from the surface of said surface coating to a predefined depth (h) not exceeding the average thickness (s) of said surface coating, in use the loss of thickness of the surface coating due to wear resulting in a corresponding decrease in depth (h) of said at least one recess, said marking thus acting as an indicator of consumption of said surface coating, wherein said surface coating consists of at least one layer of material deposited on top of the base metal which said band body is made of, wherein said surface coating consists of two or more superimposed layers, preferably of different materials, wherein said band body consists of a base metal chosen from grey cast iron or steel, wherein said surface coating consists of: - a base protective layer which consists of chromium carbide (Cr3C2) and Nickel-Chromium (NiCr), or Nickel-Chromium (NiCr), Iron (Fe), Molybdenum (Mo), Cobalt (Co), Manganese (Mn) and Aluminium (Al), and is obtained by deposition with a spray deposition technique, preferably with HVOF (High Velocity Oxygen Fuel) technique, or HVAF (High Velocity Air Fuel) technique or KM (Kinetic Metallization) technique; and - a surface protective coating which is constituted by tungsten carbide, iron (Fe), chromium (Cr) and aluminum (Al) and is obtained by depositing on the base protective layer tungsten carbide, iron (Fe), chromium (Cr) and aluminum (Al) in particle form with a spray deposition technique, preferably with HVOF (High Velocity Oxygen Fuel) technique or HVAF (High Velocity Air Fuel) technique or KM (Kinetic Metallization) technique, - a base protective layer which consists of chromium carbide (Cr3C2) and Nickel-Chromium (NiCr), or Nickel-Chromium (NiCr), Iron (Fe), Molybdenum (Mo), Cobalt (Co), Manganese (Mn) and Aluminium (Al), and is obtained by deposition with a spray deposition technique, preferably with HVOF (High Velocity Oxygen Fuel) technique, or HVAF (High Velocity Air Fuel) technique or KM (Kinetic Metallization) technique; and - a surface protective coating which is constituted by tungsten carbide, iron (Fe), chromium (Cr) and aluminum (Al) and is obtained by depositing on the base protective layer tungsten carbide, iron (Fe), chromium (Cr) and aluminum (Al) in particle form with a spray deposition technique, preferably with HVOF (High Velocity Oxygen Fuel) technique or HVAF (High Velocity Air Fuel) technique or KM (Kinetic Metallization) technique, and wherein the portion of said at least one braking surface (2a or 2b) coated by said base protective layer is defined by a nitrocarburized layer of said base metal and has a rough profile in radial or circumferential cross-section with respect to the centre of the braking band.