A633-C is a normalized high-strength low-alloy structural steel plate. It is suited for service at low ambient temperatures of –50°F or higher where notch toughness better than expected is desired.
Mechanical Properties SA633:
Tensile: Up to & Inc 2.5”: 70 to 90 ksi Over 2.5” to 4”: 65 to 85 ksi
Yield: Up to & Inc 2.5”: 50 ksi min Over 2.5” to 4”: 46 ksi