... throat: 120mm 3.Max. height of test piece: 230mm HB-3000B Brinell hardness tester 1. Feature & Use:* Electronic ... ASTM E10 It's suitable to determine the Brinell hardness of unquenched steel, cast iron, non- ... 2.5, Φ5, Φ10mm, 1 pc. each Brinell standardized block: 2 pcs. 20X Readout microscope: 1 pc.3. ... , 250, 750, 1000, 3000kgf)Max. height of test piece: 230mmDepth of throat: 120mmPower supply: 220V AC ...