Copper and copper alloys. Plate, sheet and circles for boilers, pressure vessels and hot water storage units|Hot-water cylinders, Boilers, Technical documents, Copper alloys, Storage water heaters, Mechanical properties of materials, Designations, Mechanical testing, Dimensional tolerances, Verification, Delivery, Form tolerances, Heat exchangers, Hardness, Creep, Density, Pressure vessels, Ordering, Copper, Chemical composition, Test specimens, Approval testing, Tensile strength, Inspection, Elongation, Thickness, Marking, Sheet materials, Proof stress, Circles (geometry), Thermal properties of materials