| 1. | Mushet steel was harder than standard water quenched steel.
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| 2. | It was found that Mushet steel could be best hardened by submitting it to an air blast after forging.
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| 3. | In a second key advance in metallurgy he invented Mushet steel ( R . M . S . ) in 1868.
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| 4. | In 1868 the English metallurgist Robert Forester Mushet developed Mushet steel, considered to be the forerunner of modern high speed steels.
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| 5. | In 1899 and 1900, Taylor and Maunsel White were experimenting with hardening processes for Mushet steel and other self-hardening steels.
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