ASME SA516 pdf download SPECIFICATION FOR PRESSURE VESSEL PLATES, CARBON STEEL, FOR MODERATE- AND LOWER-TEMPERATURE SERVICE 1.1 This specification covers carbon steel plates intended primarily for service in welded pressure vessels where im- proved notch toughness is important. 1.2 Plates under this specification are available in four grades having different strength levels as follows: Grade U.S. [SI] Tensile Strength, ksi...