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