The Rockwell C scale is usually abbreviated HRC (Hardness Rockwell C), while the Rockwell B scale is abbreviated HRB (Hardness Rockwell B). 45T Scale, 45 Kgf (45T) The higher the number, the harder the material, but only relative to other numbers within a given scale. The Rockwell Hardness rating is abbreviated to HRC and the numbers determine a material’s ranking on the scale – the higher the number, the harder the material. 15T Scale, 15 Kgf (15T) Rockwell Superficial Hardness No. Brass. Buy metals and plastics online in small quantities, cut to order. Publication No.36 by the Copper Development Association (CDA) in the 1960’s show that for cartridge brass full hard is typically 175-185HV and fully annealed cartridge brass is typically 65HV. Approximate Hardness Conversion No.s for Cartridge Brass (70&perc Cu 30% Zn Alloy) Vicker’s Hardness Number (HV) Rockwell Hardness Number B Scale, 100 Kgf (HRB): Rockwell Hardness Number F Scale, 600 Kgf (HRF): Rockwell Superficial Hardness No. HRC HB HV HRA Rm (Tensile Strength) Diamond penetrator Brinell 3000 Kgf Vickers 30 Diamond penetrator N/mm MPa; 68 – 940: 85.6 – 67 – 900: 85.0 – 66 – 865: 84.5 Brinell hardness of cartridge brass – UNS C26000 is approximately 100 MPa. 30T Scale, 30 Kgf (30T) Rockwell Superficial Hardness No. In other words, the more pressure that is required to indent the surface, the higher the number on the scale will be. The hardness of brass has traditionally been discussed in terms relative to its maximum hardness. Convert Brinell (HBW), Rockwell (HRC), Vickers (HV), and Knoop (HK) hardness and steel tensile strength. This chart shows you the approximate hardness conversion numbers for non-austenitic steels. Notes: For cutting processing, 1HRC≈10HB can be basically converted (the hardness of the workpiece material has a fluctuation range) The most common Brinell, Rockwell, and Vickers hardnesses of metal materials are all indentation hardness. RFQ/Terms Careers 1(800)435-6621 Hardness of Brass – Cartridge Brass – UNS C26000. Brinell Hardness: Vickers Hardness: Rockwell Hardness: Tensile Strength: 100 HB: 105 HV - HRC: 335 N/mm 2: 101 HB: 106 HV - HRC: 338 N/mm 2: 102 HB: 107 HV Description Shape Range Comments 900330-9414BH Rockwell B Square 80’s Made in USA 900330-9414BL Rockwell B Square 50’s Made in USA Phase II offers a vast array of different hardness test blocks for Rockwell, Brinell and Vickers scales, as well as Portable hardness … Rockwell Hardness Test Blocks (Brass) Part No. Rockwell Hardness (HRC and HRB) and Brinell Hardness (HB or BHN) are most commonly used for steel and iron castings. Conversion table/chart for Brinnel and Rockwell hardness scales and tensile strengths. Although there is no accurate conversion tables and equations, but dandong foundry recommend the following formulas and comparison tables according to the experience and standards. When the hardness is lower than 20HRC, 1HRC≈11.5HB. Rockwell hardness test is one of the most common indentation hardness tests, that has been developed for hardness testing.