═══════════════╤═══════╤═════════╤════╤══════╤═══════════╤═══════════ │ Per │Per Cent │Per │ Per │ Beginning │ Tensile │ Cent │Graphitic│Cent│ Cent │ of │Strength[3] │Silicon│ Carbon │ │Total │Freezing[2]│ │ │ │ │Carbon│ │ ───────────────┼───────┼─────────┼────┼──────┼───────────┼─────────── 1. Sand Cast │ 2.50│ 3.75│ .25│ 4.00│ 2100│ Pig Iron │ │ │ │ │ │ 2. Machine │ 2.50│ 3.00│1.00│ 4.00│ 2100│ Cast Pig │ │ │ │ │ │ Iron │ │ │ │ │ │ ───────────────┼───────┼─────────┼────┼──────┼───────────┼─────────── 3. Open-Hearth│ .03│ .00│ .02│ .02│ 2740│ 50,000 Iron │ │ │ │ │ │ 4. Wrought │ Slag│ .00│ .05│ .05│ 2740│ 52,000 Iron │ │ │ │ │ │ │ │ │ │ │ │ 5. Mild Steel │ .05│ .00│ .10│ .10│ 2740│ 55,000 │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ 6. Medium │ .05│ .00│ .25│ .25│ 2720│ 65,000 Steel │ │ │ │ │ │ 7. Rail Steel │ .05│ .00│ .60│ .60│ 2680│ 90,000 8. Low Carbon │ .15│ .00│ .75│ .75│ 2660│ 100,000 Tool │ │ │ │ │ │ Steel │ │ │ │ │ │ 9. Medium │ .15│ .00│1.00│ 1.00│ 2630│ 120,000 Carbon │ │ │ │ │ │ Tool │ │ │ │ │ │ Steel │ │ │ │ │ │ 10. High Carbon│ .15│ .00│1.25│ 1.25│ 2600│ 135,000 Tool │ │ │ │ │ │ Steel │ │ │ │ │ │ 11. Very High │ .15│ .00│1.50│ 1.50│ 2560│ 124,000 Carbon │ │ │ │ │ │ Tool │ │ │ │ │ │ Steel │ │ │ │ │ │ 12. High Steel │ │ .00│1.75│ 1.75│ 2530│ │ │ │ │ │ │ 13. White Iron │ │ .00│2.50│ 2.50│ 2460│ │ │ │ │ │ │ 14. White Cast │ .70│ .10│2.65│ 2.75│ 2400│ 41,000 Iron │ │ │ │ │ │ │ │ │ │ │ │ 15. Annealed │ .70│ 2.70│ .05│ 2.75│ │ 40,000
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