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AISI 4140 alloy steel can be tempered at 205 to 649°C (400 to 1200°F) depending upon the desired hardness level. The hardness of the steel can be increased if it has a lower tempering temperature. For ...
AISI 4140 is a chromium-molybdenum alloy steel, the chromium content provides good hardness penetration, and the molybdenum content ensures uniform hardness and high strength. AISI 4140 is a ...
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