The invention relates to a scraper (10) for scraper chain conveyors, with a top web (12) on which a chain-connecting region (13) for joining the scraper (10) to a scraper chain is formed, and with scraper wings for guiding the scraper on side profiles and on the base of a scraper chain conveyor. In order to provide scrapers which can be used to achieve a greater conveying capacity or a reduction in the driving power to be installed and which also permit a worn or defective scraper to be changed underground, according to the invention the scraper wings consist of a holding section (14) anchored to the metallic top web (12) and a sliding insert (40) which is formed from plastic and can be fastened releasably to the holding section (14). Various embodiments are proposed for the sliding inserts (40) and the locking in place thereof.