Conventional carbon steel scrapers are usually made of cold-rolled carbon steel sheets. The combination of the carbon content and cold rolling creates the desired hardness of the scraper. However, this technology creates uneven hardness along the thickness of the sheet and produces a very different steel structure along versus across the rolling direction in the sheet.

The Herdim scrapers are made of a hot-rolled sheet, which creates a more consistent structure of the steel with less differences along and across the rolling direction. The tempering used during the hardening procedure enhances ductility and thereby also the quality and fineness of the cutting burr.

The Herdim stainless steel scrapers utilize the unique feature of the austenitic structure of stainless steel - the high wear-resistance. The austenitic structure of stainless steel is, compared to the ferritic structure of carbon steel, much more wear-resistant. The less fine cutting burr is outweighed by its durability.