Chart For Determining The Inclusion Content Of Secondaryrefined Steels , Chart For Determining The Inclusion Content Ofair Melted Steel , Grain Size Chart For Classification Of Steelastm E 19 , Plate 1A Untwined Grain Flat Etch , Plate 1Buntwined Grain Flat Etch , Plate Ii Twined Grains Flat Etch ,Plate Iii Twined Contrast Etch , Plate Iv Austienite Grains Insteel , Plate Ir Sulphide Alumina Silicate Globular Oxide ,Plate 2 , Plate I Graded Series Photos Of Alloy And Killedcarbon Steels , Plate Ii Ungrades Series Photos Of Alloy Andkilled Carbon Steels , Plate Iii Ungraded Series For Strandcast Steel Transverse Quantity: 13