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With a medium to high carbon content, spring prepares normally comprise of 0.5 to 1.0 percent of carbon. Other amalgams that are included along with the remaining blend are magnesium, chrome, vanadium, molybdenum, nickel, and silicon with silicon being a significant fixing in giving high return strength. Sae 1070-1090 high carbon blue tempered and cleaned spring steel is a standard material for customary springs. ... Carbon steel is profoundly attractive and is ordinarily blue in shading. Tempered Steel Type 301. Tempered Steel 301 is fit for achieving high rigidity and pliability by cool work
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