A process for manufacturing cordierite ceramics of type C410 characterized in that it includes: - wet grinding of mixtures of ingredients in % by weight: - 15 to 30 % of talc - 20 to 50 % of clay components - 5 to 10 % of potassium alumosilicate - 1 to 25 % of aluminium oxide source selected from synthetic corundum - α - Al 2 O 3, aluminium hydroxide - Al 3 or boehmite - AlOOH or a mixture thereof with an average particle size in the range from 0.05 to 10 micrometeres, - 5 to 10 % of silicon oxide source, - additives, such as surfactants and binders, wherein the grinding is performed for 4 to 24 hours to reach an average particle size of all ingredients below 15 micrometres and the grinding of said mixture is performed in a grinder that is coated with a ceramic coating containing corundum ceramic balls containing from 90 % by weight to 94 % by weight of Al 2 O 3; - after the grinding, the suspension is poured onto a dry plaster surface where it is left to dry up to a water content of 15 to 35 % by weight, from which blanks are made; - drying of blanks in a drier at 105 °C for 10 to 24 hours, such that they contain less than 1 % by weight of humidity; - firing of blanks at a temperature of 1270 to 1350 °C for 1 hours to 10 hours, said cordierite ceramics of type C410 having the mechanical flexural strength exceeding 70 MPa and thermal expansion coefficient lower than 3.2 x 10 -6 K -1 in the range from 30 to 600°C. - wet grinding of mixtures of ingredients in % by weight: - 15 to 30 % of talc - 20 to 50 % of clay components - 5 to 10 % of potassium alumosilicate - 15 to 30 % of talc - 20 to 50 % of clay components - 5 to 10 % of potassium alumosilicate - 1 to 25 % of aluminium oxide source selected from synthetic corundum - α - Al 2 O 3, aluminium hydroxide - Al 3 or boehmite - AlOOH or a mixture thereof with an average particle size in the range from 0.05 to 10 micrometeres, - 5 to 10 % of silicon oxide source, - additives, such as surfactants and binders, wherein the grinding is performed for 4 to 24 hours to reach an average particle size of all ingredients below 15 micrometres and the grinding of said mixture is performed in a grinder that is coated with a ceramic coating containing corundum ceramic balls containing from 90 % by weight to 94 % by weight of Al 2 O 3; - after the grinding, the suspension is poured onto a dry plaster surface where it is left to dry up to a water content of 15 to 35 % by weight, from which blanks are made; - drying of blanks in a drier at 105 °C for 10 to 24 hours, such that they contain less than 1 % by weight of humidity; - firing of blanks at a temperature of 1270 to 1350 °C for 1 hours to 10 hours, said cordierite ceramics of type C410 having the mechanical flexural strength exceeding 70 MPa and thermal expansion coefficient lower than 3.2 x 10 -6 K -1 in the range from 30 to 600°C. - 5 to 10 % of silicon oxide source, - additives, such as surfactants and binders, wherein the grinding is performed for 4 to 24 hours to reach an average particle size of all ingredients below 15 micrometres and the grinding of said mixture is performed in a grinder that is coated with a ceramic coating containing corundum ceramic balls containing from 90 % by weight to 94 % by weight of Al 2 O 3; - after the grinding, the suspension is poured onto a dry plaster surface where it is left to dry up to a water content of 15 to 35 % by weight, from which blanks are made; - drying of blanks in a drier at 105 °C for 10 to 24 hours, such that they contain less than 1 % by weight of humidity; - firing of blanks at a temperature of 1270 to 1350 °C for 1 hours to 10 hours, said cordierite ceramics of type C410 having the mechanical flexural strength exceeding 70 MPa and thermal expansion coefficient lower than 3.2 x 10 -6 K -1 in the range from 30 to 600°C.