A carbon-manganese plate steel which is microalloyed with columbium has been developed for applications up to 152 mm (6 in.) in thickness. This steel, marketed under the registered trademark Frostline, is a heat treated steel designed for use in either the normalized or the quenched and tempered condition. Frostline meets ASTM plate steel specifications A633 Grade C and A737 Grade B and has recently been approved for use in ASME Section VIII pressure vessel applications by Code Case 1832.

Subject
Microstructure, Gauges, Charpy impact test, Calcium, Rolling, Mechanical properties, Heat, Steel, Carbon, Ferrite, Quenching and tempering, Heat treatment, Grain
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1979
Association for Materials Protection and Performance (AMPP)
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