| Temper Brittleness | ||||
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| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Definition: The loss in impact resistance that is present in some low and medium carbon alloy steels when tempered in the range of 350oC - 600oC. It is revealed by the notched bar impact test but not the tensile test.
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