... Gr 65, A516 Gr 55, HIC, ASTM, steel plate. 1. Boiler & Pressure Vessel Steel Plates (S)A516 Grade 55, (S)A516 Grade ... Grade 70 A 516/A 516M Pressure Vessel Plates, Carbon Steel, for Moderate-and Lower-Temperature Service A 515/A 515M ... Intermediate- and Higher-Temperature Service 2. Services of Steel: Cutting, Welding, Z15, Z25, Z35, Qt, N, Q, A, Sand clusting, ...