BSI BS EN 13445-1:2002 pdf download
BSI BS EN 13445-1:2002 pdf download.Unfired pressure vessels一 Part 1: General.
— The testing group of the vessel according to 6.6.1 1 of EN 13445-5:2002. The available testing grol.4s depend upon the material group, thickness. and welding method. Category 4 Is further lirneted with regards to pressure. temperature, content, number of cycles, design stress, and dimensions.
NOTE 3 The testing group affects not only the testing recsremerits but also design and rnanufactumg aspects, e.g.. joint coefhcient. permitted weld details and required weld production tests
NOTE 4 Although me same estmg group norma*y applies to the eote vessel, it ls (wm the exception of Group 4) permissible to have different testing groups apply to different parts (e.g.. welde).
A.4 Materials
A.4.1 General
Specific requirements for steels are given In Part 2.
NOTE SpecifIc rules for spireroidet graphite cast iron and aluminium we given in Part 6 (see A 8 in this aeswx) and part 8
(see A.9 in this annex, respectively. In some instances. refeceres may be rnte from these parts to Part 2.
A.4.2 Permitted materials
Only materials whidi are qualified for pressure equipment may be used. Onalification of materials can be made in three different ways
— Materials from European harmonized Standards, see 4.3.1 of EN 13445-2:2002;
Certain materials supplied in accordance with European material Standards are accepted as qualified for use In pressure.bearlng parts. These materials are enumerated in Table A.2. 1 of EN 1 344522002.
— Materials with a European Approval for Materials (EAM). see 4.3.2 ol EN 13445-2:2002:
Materials with an EAM, which states that they can be used for products under the PED, are qualified far use in relevant products according to this standard.
EAM5 are piAilished In the Official Journal, and the European Commission maintains a list of EAM5 on their web site
NOTE 1 This web sIte is presently accessible under the address nteur aeu.infcornmënIeepnse pressure egurnent p’fr’dexenhW
— Materials with a Particular Material Appraisal (PMA) . see 4.3.3 of EN 134452:2002,
Materials, which have been subject to a PMA are qualified This appraisal Is carried Out by the manufacturer land in certain cases checked by a Notified Body).
NOTE 2 The Eopean Corrvnisslon and Member States have m November 2006 agreed on ‘Guiding Pnnoples for the contents of PSflICUIê, Materials *cpraisals. The document is pub5shed on, htYeuropa.eu.vxtcomin ere1erpnseressure_equprneref’pedindex_evi.htmI.
Whichever method of qualification is used, the qualification does not necessarily cover the suitabdity of the material with regards to the environment and content of the vessel, i.e., corrosion, erosion, etc- The manufacturer will always have to evaluate the material’s resistance to such action.
Whichever way the material has been qualified, all other rules in Part 2 will have to be fulfilled.
A.4.3 Prevention of brittle fracture
Rules for prevention against brittle fracture are given an Annex B of EN 13445-2:2002.
Three different routes are allowed
— Reliance on operating experience tB2.2 of EN 13445-2:2002j
— A combination of operating experience and fracture mechanics {B.2.3 of EN 13445-2:2002)
— Fracture mechanics (B.2.4 of EN 13445.2:2002)
The first two methods aim at determining a relationshç between the lowest material temperature in the vessel (Ta)
and the temperature at which impact testing f T,) has to be performed, and they are both limwted seth regards 10
materials and thicknesses.
NOTE A revised version of method I and method 2. based on latest European research results ii engineering crititcal assessment methods is currently under prepastion.
The third method allows the use of engineeing critical assessment methods when methods 1 and 2 are not suitable for material selection. This method requires more work than the first two.
A.4.4 Material grouping
Materials are grouped in Table A.1-1 of EN 13445-22002 with respect to maid chemical elements, specified minimum tensile test data This grouping is used throughout the standard to decade design, manufacturing, and inspection aspects.
A.5 Design
A.5.1 General
Most of the requirements for design are to be found in Part 3.
NOTE Spec& design rules for vessels manufactured from spheroidal grephile cast iron and aMninium are given in Part 6
(see A.8 in this annex) and Parts tsee A.9 m m’s sines), respectively
A.5.2 Design for static loads
There are four <erent methods for design, which can be used either separately or in combination with each other
— Design by formulas (DBF)
These rules are contained in Clauses 7 to 16 of EN 13445-32002 and Annexes F, 6. and J of EN 13445-32002.
