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Steel Pressure Vessels

Steel Pressure Vessels are closed containers used to store a fluid or gas at pressures much different than ambient pressure. Steel is the common material of choice due to the material strength required to withstand the potentially large forces created by the differential pressures. While a spherical vessel is ideally the strongest design, pressure vessels are typically cylindrical with hemispherical end caps, or heads. This design serves as a compromise between the ideal design and one that is easier and more affordable to manufacture. The American Society of Mechanical Engineers (ASME) provides standards for the design of pressure vessels.