IS 1500 specifies the Brinell hardness test for metallic materials using a tungsten carbide ball indenter. It is the most commonly used hardness test for castings, forgings, and rolled products. The test measures indentation diameter under known force to calculate hardness.
Method of test for determining Brinell hardness (HBW) of metallic materials using tungsten carbide ball indenter, covering test conditions, procedure, and reporting.
Key Values
Standard ball diameter10 mm
Standard test force (steel)3000 kgf (29.42 kN)
Standard test force (Al, Cu)500 kgf (4.903 kN)
Practical Notes
! Brinell is preferred for castings (IS 210 grey iron) and forgings because the large indentation averages out grain structure variations.
! For hardened steel (>450 HBW), use Rockwell (IS 1586) or Vickers (IS 1501) instead — Brinell ball deforms at high hardness.
! Always report the test conditions: HBW 10/3000 means 10mm ball, 3000 kgf force.
! Minimum specimen thickness must be at least 8x the indentation depth.