ASTM A517 high‑strength pressure vessel steel plate

ASTM A517 is a standard specification for high-strength, quenched and tempered alloy steel plates used primarily in fusion welded boilers and pressure vessels. It offers exceptional yield strength (min 100 ksi for thickness ≤2.5in, min 90 ksi for >2.5in) and toughness. Available in grades A, B, E, F, H, P, Q, and S, it supports supplementary tests like HIC and NACE MR0175.