. Railway mechanical engineer . Fig. 2- Ptece of Seminole Steel drawn to a point and driven three times through a low carbonsteel bar without breaking. Fig. 4 shows a chisel that wasdriven through a block of .35 per cent carbon steel, bent overand straightened several times without breaking, and wasthen found hard enough to scratch glass. Fig. I shows achisel of this steel driven through a .35 per cent carbon steel. Fig. 3^Low Carbon Steel Bar Pierced by Chisel-Steel Spike slab without bending the chisel or damage to its edge. Allof these tests were made with tools and material cold. This stee
. Railway mechanical engineer . Fig. 2- Ptece of Seminole Steel drawn to a point and driven three times through a low carbonsteel bar without breaking. Fig. 4 shows a chisel that wasdriven through a block of .35 per cent carbon steel, bent overand straightened several times without breaking, and wasthen found hard enough to scratch glass. Fig. I shows achisel of this steel driven through a .35 per cent carbon steel. Fig. 3^Low Carbon Steel Bar Pierced by Chisel-Steel Spike slab without bending the chisel or damage to its edge. Allof these tests were made with tools and material cold. This steel can be satisfactorily hardened in temperaturesranging from 1,650 to 1,950 deg. F., but the preferablerange is considered to lie between 1,750 and 1,800 heating, the steel is quenched in oil and then slightlydrawn. The drawing increases the toughness of the metal
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
