Aged Hardness

Age Hardened Room Temperature Hardness

Form Hardness Heat Treatment
Sheet 35 HRC 2050F, 30 Min, AC + 1650F, 4 Hr, AC
Plate 36 HRC 2050F, 30 Min, AC + 1650F, 4 Hr, AC
Sheet 42 HRC 1400F, 16 Hr, AC
Plate 39 HRC 1400F, 16 Hr, AC

HRC = Hardness Rockwell "C"

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