![](/static_processed/dbff613198b8d32cd249d3f88532ff58/rockwell_korrekturtabelle_1.png?{"image":"https://api.emcotest.com/static/haerte-wissen/Rockwell_Korrekturtabelle_1.png","edits":{"resize":{"width":1680,"height":800,"fit":"inside"}},"outputFormat":{"format":"webp"}})
![](/static_processed/0eb60649faaa2cc936b128e622100a89/rockwell_korrekturtabelle_2.png?{"image":"https://api.emcotest.com/static/haerte-wissen/Rockwell_Korrekturtabelle_2.png","edits":{"resize":{"width":1680,"height":800,"fit":"inside"}},"outputFormat":{"format":"webp"}})
![](/static_processed/296bccd222f250511ccbd5d9fbf4753e/rockwell_korrekturtabelle_3.png?{"image":"https://api.emcotest.com/static/haerte-wissen/Rockwell_Korrekturtabelle_3.png","edits":{"resize":{"width":1680,"height":800,"fit":"inside"}},"outputFormat":{"format":"webp"}})
![](/static_processed/307a409a15f935f1cc5b982fab652f1b/rockwell_korrekturtabelle_4.png?{"image":"https://api.emcotest.com/static/haerte-wissen/Rockwell_Korrekturtabelle_4.png","edits":{"resize":{"width":1680,"height":800,"fit":"inside"}},"outputFormat":{"format":"webp"}})
![](/static_processed/4b71bdd02be4e659d2002d5d7938627c/iso_internationale_organisation_normung.png?{"image":"https://api.emcotest.com/static/haerte-wissen/normen-kalibrierung/ISO_Internationale_Organisation_Normung.png","edits":{"resize":{"width":435,"height":325,"fit":"cover"}},"outputFormat":{"format":"webp"}} "Calibration & Standards")
General tips
Rockwell correction value for testing cylindrical specimens
If a Rockwell test is conducted on cylindrical parts, then, due to the lower resistance of the test surface with respect to the indenter, the following correction values – depending on the specimen curvature radius and the Rockwell scale used – must be added to the test result (acc. to ISO 6508-1).
![](/static_processed/af445bd2448d3294fa4c33fad2fb6904/emco-test_zubehoer.jpg?{"image":"https://api.emcotest.com/static/haerte-wissen/emco-test_zubehoer.jpg","edits":{"extract":{"top":0,"left":1057,"width":1422,"height":800},"resize":{"width":435,"height":325,"fit":"cover"}},"outputFormat":{"format":"webp"}} "Applications & Tips")
![](/static_processed/69ebe12dd9ee9c0b04157cdd1a0e8e97/emco-test_app_haertepruefung_jpg.jpg?{"image":"https://api.emcotest.com/static/haerte-wissen/App/EMCO-TEST_APP_Haertepruefung_jpg.jpg","edits":{"resize":{"width":435,"height":325,"fit":"cover"}},"outputFormat":{"format":"webp"}} "EMCO-TEST App")
![](/static_processed/8cd1b72996613254a8d94ce8526fd8e0/emco-test_haerteprueftechnologie.jpg?{"image":"https://api.emcotest.com/static/haerte-wissen/emco-test_haerteprueftechnologie.jpg","edits":{"extract":{"top":0,"left":2047,"width":1422,"height":800},"resize":{"width":435,"height":325,"fit":"cover"}},"outputFormat":{"format":"webp"}} "Hardness testing technologies")
![](/static_processed/4c645b8fc6fca5dda0a34ce87cb23232/jominy-test_stirnabschreckversuch.jpg?{"image":"https://api.emcotest.com/static/haerte-wissen/anwendungen-tipps/Jominy-Test_Stirnabschreckversuch.jpg","edits":{"resize":{"width":435,"height":325,"fit":"cover"}},"outputFormat":{"format":"webp"}} "Overview of hardness testing methods")
![](/static_processed/71451df0af45b776c6070bf6ae4b97b8/emco-test_maschinenbau.jpg?{"image":"https://api.emcotest.com/static/header/emco-test_maschinenbau.jpg","edits":{"resize":{"width":435,"height":325,"fit":"cover"}},"outputFormat":{"format":"webp"}} "Industries")
