Sliding material and gas compression machine

The invention provides a sliding material with excellent wear resistance and a gas compression machine. In order to solve this problem, a sliding material (12) contains a resin (12a), first particles (12b) that are arranged in the resin (12a) and that are composed of an inorganic material, and second particles (12c) that are arranged in the resin (12a) and that are composed of an inorganic material having a Vickers hardness greater than that of the first particles (12b). When a value obtained by dividing the Vickers hardness of the second particles (12c) by the Vickers hardness of the first particles (12b) is defined as a hardness ratio, and a value obtained by dividing the content of the first particles (12b) with respect to the resin (12a) by the content of the second particles (12c) with respect to the resin (12a) is defined as a content ratio, the value obtained by dividing the hardness ratio by the content ratio is 0.3-2.8. 本发明提供一种耐磨损性优秀的滑动材和气体压缩机械。为了解决该课题，滑动材(12)含有树脂(12a)、在树脂(12a)中配置的、由无机材料构成的第1颗粒(12b)、