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• 09:40, 3 September 2026 Oluschinski talk contribs created page Alpha ROCKWELL Hardness (Created page with "{{Language_sel|LANG=ger|ARTIKEL=Alpha-Rockwellhärte}} {{PSM_Infobox}} <span style="font-size:1.2em;font-weight:bold;">Alpha ROCKWELL hardness</span> __FORCETOC__ ==General information== Although the ROCKWELL hardness test method was originally designed only for metallic materials (HRC, HRB, etc.), there are now scales and loads that make it suitable for plastics as well (HR15Y, HR30Y with 15 and 30 kg loads). ==Alpha Rockwell hardness for plastics== In...")