- 04/30/2019 at 7:18 am #726646EduGorillaKeymasterSelect Question Language :
What is the main difference between High Speed Steel and Super High Speed Steel?
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- The latter contains 2 to 15% of cobalt in addition to tungsten, vanadium and chromium.
- The latter contains 2 to 15% of molybdenum in addition to tungsten, vanadium and chromium.
- The percentage of tungsten is less in the latter than that in the former.
- Both are the same.
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