MECHANICAL PROPERTIES:
Tensile: 70 to 90 ksi
Yield: 50 ksi min
Charpy Requirements: TCVN 30 ft/lbs average/25 ft/lbs min @ – 40° Fahrenheit
Supplements:
S.1 – Ultrasonic Testing per SA578 level II 100% scan
S.3 – Frequency “P” per plate testing in accordance with A20 requirements
S.4 – Through Thickness Tensile Testing “Z” direction per A770, 30% min. reduction of area.
S.5 – Controlled sulpher to 0.006% max with inclusion shape control
S.12 – Drop Weight Testing