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Iron Was Discovered By Sudanese

Iron Was Discovered By Sudanese

Selection of eight Iron hunting spears two without shafts made and used by the Jur tribe of Sudan c.1930s. Around 1000BC it was discovered that iron with a small amount of carbon could be hardened by quenching in water after heating.This was followed by a reheating process called tempering.However it was not until Henry Sorby 1826-1908 developed the metallographic technique for observing .

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