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EN 13445-3:2014/A4:2018
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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UNFIRED PRESSURE VESSELS - PART 3: DESIGN
23-02-2022
12-01-2013
European foreword
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
5 Basic design criteria
6 Maximum allowed values of the nominal design
stress for pressure parts
7 Shells under internal pressure
8 Shells under external pressure
9 Openings in shells
10 Flat ends
11 Flanges
12 Bolted domed ends
13 Heat Exchanger Tubesheets
14 Expansion bellows
15 Pressure vessels of rectangular section
16 Additional non-pressure loads
17 Simplified assessment of fatigue life
18 Detailed assessment of fatigue life
19 Creep design
20 Design rules for reinforced flat walls
21 Circular flat ends with radial reinforcement ribs
22 Static analysis of tall vertical vessels on skirts
Annex A (normative) - Design requirements for pressure
bearing welds
Annex B (normative) - Design by Analysis - Direct Route
Annex C (normative) - Design by analysis - Method based
on stress categories
Annex D (informative) - Verification of the shape of vessels
subject to external pressure
Annex E (normative) - Procedure for calculating the departure
from the true circle of cylinders and cones
Annex F (normative) - Allowable external pressure for vessels
outside circularity tolerance
Annex G (normative) - Alternative design rules for flanges and
gasketed flange connections
Annex GA (informative) - Alternative design rules for flanges and
gasketed flange connections
Annex H (informative) - Gasket factors m and y
Annex I (informative) - Additional information on heat exchanger
tubesheet design
Annex J (normative) - Alternative method for the design of heat
exchanger tubesheets
Annex K (informative) - Additional information on expansion
bellows design
Annex L (informative) - Basis for design rules related to additional
non-pressure loads
Annex M (informative) - In service monitoring of vessels operating
in fatigue or creep service
Annex N (informative) - Bibliography to Clause 18
Annex O (informative) - Physical properties of steels
Annex P (normative) - Classification of weld details to be assessed
using principal stresses
Annex Q (normative) - Simplified procedure for the fatigue assessment
of unwelded zones
Annex R (informative) - Coefficients for creep-rupture model equations
for extrapolation of creeprupture strength
Annex S (informative) - Extrapolation of the nominal design stress
based on timeindependent behaviour in the creep range
Annex T (normative) - Design by experimental methods
Annex Y (informative) - History of EN 13445-3
Annex ZA (informative) - Relationship between this European Standard
and the Essential Requirements of Directive 2014/68/EU
aimed to be covered
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