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BS EN 12952-2:2021 – TC:2022 Edition

BS EN 12952-2:2021 – TC:2022 Edition

$246.62

Tracked Changes. Water-tube boilers and auxiliary installations – Materials for pressure parts of boilers and accessories

Published By Publication Date Number of Pages
BSI 2022 98
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This European Standard specifies the requirements for the product forms for use in pressure parts of water-tube boilers and for parts welded on to pressure parts:  plates;  wrought seamless tubes;  electrically welded tubes;  submerged, plasma and TIG arc-welded tubes;  forgings;  castings;  rolled bars;  welding consumables;  fasteners;  seamless composite tubes.

PDF Catalog

PDF Pages PDF Title
1 30451706
53 A-30404066
54 undefined
62 1 Scope
2 Normative references
66 3 Terms and definitions
4 General requirements
4.1 Selection of materials with regard to service conditions
4.2 Selection of materials with regard to fabrication
67 4.3 Material specification
4.3.1 General
4.3.2 European Standards
4.3.3 European approvals for materials
4.3.4 Particular material appraisals
4.4 Consideration of special materials properties
4.5 Contents of material specification
68 4.6 Compliance and inspection documentation of materials
5 Material for pressure parts
5.1 Materials covered by harmonized European product Standards for pressure purposes
5.1.1 Flat products, forgings, castings, tubes, fittings, flanges and valve bodies
5.1.2 Cast iron
5.1.3 Studs, bolts and nuts
69 5.1.4 Welding consumables
5.1.5 Requirements for plates used for heads
5.1.6 Requirements for non-destructive examination
71 5.1.7 Marking
5.2 Material covered by European approvals of materials for pressure equipment — technical requirements
5.2.1 General
5.2.2 Manufacture
5.2.3 Heat treatment condition
5.2.4 Chemical composition
72 5.2.5 Mechanical and technological properties
5.2.5.1 General
5.2.5.2 Tensile properties at room temperature
5.2.5.3 Elongation after fracture
73 5.2.5.4 Charpy V – notch impact energy
5.2.5.5 Elevated temperature proof strength
74 5.2.5.6 Creep rupture strength
5.2.5.7 Technological properties
5.2.5.8 Other properties
5.2.5.9 Surface condition and internal soundness
5.2.5.10 Dimensions and tolerance on dimensions, shape and weight
5.2.5.11 Testing and inspection
75 5.2.5.12 Marking
5.2.5.13 Supplementary requirements
5.3 Materials with particular material appraisals
6 Materials for non-pressure parts
76 Annex A (normative)Materials covered by European material Standards
A.1 Pressure parts
A.2 Fittings
A.3 Flanges
A.4 Valves
89 Annex B (normative)Establishment of creep rupture strength values for new materials
90 Annex C (normative)Special requirements for composite tubes
C.1 General
C.2 Special requirements for composite tubing
C.2.1 Composite tubing
C.2.2 General
C.2.3 Chemical composition
C.2.4 Mechanical and technological properties
C.2.4.1 Tensile test of ferritic pressure retaining inner core
C.2.4.2 Ring expanding test (composite tube)
91 C.2.5 Tolerances
C.2.5.1 Permissible variations in Outside diameter and wall thickness
C.2.5.2 Permissible variations in straightness
C.2.6 Surface finish
C.2.7 Ultrasonic testing
C.2.7.1 Ultrasonic testing of the metallurgical bond in composite tubes
92 C.2.7.2 Ultrasonic testing of composite tubes concerning longitudinal and transverse imperfections
C.2.8 Thickness check of stainless steel component
C.2.8.1 General
C.2.8.2 Calibration
C.2.8.3 Acceptance criteria
93 C.2.9 Summary of tests and examinations
C.3 Marking
C.3.1 General
C.3.2 Additional marking requirements
94 Annex D (informative)Significant technical changes between this document and the previous edition
95 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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BS EN 12952-2:2021 - TC
$246.62