BS EN 10253-3:2008
Current
The latest, up-to-date edition.
Butt-welding pipe fittings Wrought austenitic and austenitic-ferritic (duplex) stainless steels without specific inspection requirements
Hardcopy , PDF
English
12-31-2008
Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and symbols
3.1 Terms and definitions
3.2 Symbols
4 Classification of grades and designation
4.1 Classification of grades
4.2 Designation
5 Information to be obtained from the purchaser
5.1 Mandatory information
5.1.1 Designation of fittings
5.1.2 Information
5.2 Options
5.3 Examples of an order
5.3.1 Example 1
5.3.2 Example 2
5.3.3 Example 3
5.3.4 Example 4
6 Manufacturing process
6.1 Steelmaking process
6.2 Product making process for fittings
and heat treatment
6.2.1 Product making process
6.2.2 Welding
6.2.3 Heat treatment
7 Technical requirements
7.1 General
7.2 Chemical composition - Cast analysis
7.3 Weldability
7.4 Mechanical properties at room
temperature
7.5 Corrosion resistance
7.6 Appearance and internal soundness
7.6.1 Appearance
7.6.2 Internal soundness
7.7 Dimensions and tolerances
7.7.1 General
7.7.2 Dimensions
7.7.3 Dimensional tolerances
7.7.4 Performance of the end bevelling
7.8 Leak tightness
8 Inspection
8.1 Inspection documents
8.1.1 Types of inspection documents
8.1.2 Content of inspection documents
8.2 Summary of inspection and testing
9 Sampling
9.1 Frequency of tests
9.1.1 Test unit
9.2 Preparation of samples and test pieces
9.2.1 Samples and test pieces for mechanical tests
9.2.2 Test piece for the tensile
test on the base material
9.2.3 Test piece for the tensile
test on the weld
9.2.4 Test piece for the weld bend test
9.2.5 Test piece for the intergranular
corrosion test
10 Test methods
10.1 Chemical analysis
10.2 Tensile test on the base material
10.2.1 At room temperature
10.2.2 At elevated temperature
10.3 Transverse tensile test on the weld
10.4 Weld bend test
10.5 Intergranular corrosion test
10.6 Dimensional testing
10.7 Visual inspection
10.8 Non destructive testing
10.8.1 Personnel
10.8.2 NDT of the weld
10.9 Material identification
10.10 Leak tightness test
10.11 Optional tests
11 Marking
11.1 Marking to be applied
12 Handling and packaging
Annex A (normative) - Structural dimensions of fittings
Annex B (informative) - Commonly used inside diameters
and wall thicknesses, metric sizes
Bibliography
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