Abstract
The influence of technological conditions of hot deformation of low-carbon martensitic steel (LMS) 15Cr2Mn2NiMoVNb on structure formation and properties was investigated. Quenching of LMS can be carried out in air due to high stability of undercooled austenite. Quenching of LMS by cooling with speeds lower than the speed of the air cooling has not been studied previously. This work shows the results of a research dedicated to the effect of different cooling rates during quenching LMS from the end of the hot deformation temperature on structure and properties.