hardness number of 80 on the Rockwell B scale. Similarly, 81 HR 30N indicates a Rockwell hardness number of 81 on the Rockwell 30N scale. Rockwellhardness testsare used for determining the hardness of most metals and alloys, ranging from the softestbearing materialsto the hardest steels. ...
Rockwell c scale (HRC):Used for measuring the hardness of hard materials, such as steel and hard alloys. The indenter is a diamond cone. Rockwell b scale (HRB):Suitable for softer materials like aluminum, brass, and softer steels. The indenter is a hardened steel ball. Rockwell a scale (...
Rockwell hardness tests are used for determining the hardness of most metals and alloys, ranging from the softest bearing materials to the hardest steels. 1.2 Brinell Hardness Testing The Brinell hardness test consists of applying a constant load, usually in the range 500–3000 N, for a ...
Application range: common metal including iron and steel, cooper, aluminum, INSTRUMENT FEATURES: Follow Rockwell hardness test method and test condition, and the result is reliable. Fix the instrument to part and clamp it and test the hardness of part, no need to move the part. ...
The Rockwell Hardness Test presses a steel or diamond hemisphere-conical penetrator against a test specimen and measures the resulting indentation depth as a gage of the specimen hardness. The harder the material, the higher the HR reading. In the test, a minor load (10 kgf) is first applie...