Brake pads for railway freight wagons K-V-MK 400 (M 659.000 -01, thickened), TIIR-300

Brake shoes are designed for railway freight wagons. It is made by pressing composite material of TIIR-300 (8-1 - 66) onto metal stamped frame. Pads are used to provide the necessary braking efficiency of braking corners of railway freight wagons with the maximum allowable temperature on the friction surface of the pad at short-term action up to + 500 degrees, maximum allowable volume temperature at long-term action up to + 300 degrees, maximum allowable sliding speed up to 45 m/s (160 km/h). Brinell hardness (HB 16/187.5/30) from 1.4 -3.0.Coefficient of friction on steel (steel grade 2) 0.34-0.54. Compressive strength MPa - not less than 15.