The BS EN 13445 series of standards applies to unfired pressure vessels subject to a pressure greater than 0,5 bar gauge but may be used for vessels operating at lower pressures, including vacuum.
This series covers the use of ferritic and austenitic materials at maximum allowable temperatures for which creep effects need not be considered, i.e. where proof strength governs the allowable stress. For ferritic steels the temperature limit corresponds to calculation temperatures below approximately 380°C.
It is not applicable to pressure equipment of the following types:
- transportable pressure equipment
- items specifically designed for nuclear use, the failure of which may cause a release of radioactivity
- pressure equipment intended for the generation of steam or superheated water at temperatures higher than 110°C
- vessels of riveted construction
- vessels of lamellar cast iron or any other materials not included in BS EN 13445-2 or BS EN 13445-6
- multilayered, autofrettaged or pre-stressed vessels
- pipelines and industrial piping.
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Part 8 of this European standard specifies the requirements for unfired pressure vessels and their parts made of aluminium and aluminium alloys, in addition to the general requirements for unfired pressure vessels under EN 13445:2002 Parts 1 to 5.
The standard specifies unfired pressure vessels for loads up to 500 full cycles.
