FIG. 6.23 Effect of tempering temperature on the hardnesses of SAE 1045, T1345, and 4045 steels. In the high-speed tool steel 18-4-1, secondary hardening occurs at about 1050°F.9

Published at 956 × 685 in Properties of Engineering Materials

FIG. 6.23 Effect of tempering temperature on the hardnesses of SAE 1045, T1345, and 4045 steels. In the high-speed tool steel 18-4-1, secondary hardening occurs at about 1050°F.9

FIG. 6.23 Effect of tempering temperature on the hardnesses of SAE 1045, T1345, and 4045 steels. In the high-speed tool steel 18-4-1, secondary hardening occurs at about 1050°F.9

FIG. 6.23 Effect of tempering temperature on the hardnesses of SAE 1045, T1345, and 4045 steels. In the high-speed tool steel 18-4-1, secondary hardening occurs at about 1050°F.9