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BS EN 10217-7:2014 Welded steel tubes for pressure purposes. Technical delivery conditions - Stainless steel tubes, 2014
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Symbols
- 5 Classification and designation [Go to Page]
- 5.1 Classification
- 5.2 Designation
- 6 Information to be supplied by the purchaser [Go to Page]
- 6.1 Mandatory information
- 6.2 Options
- 6.3 Examples of an order [Go to Page]
- 6.3.1 Example 1
- 6.3.2 Example 2
- 7 Manufacturing process [Go to Page]
- 7.1 Steelmaking process
- 7.2 Tube manufacture and delivery conditions
- Table 1 - Tube manufacturing process, route, starting material, forming operation and weld condition
- Table 2 - Delivery conditions
- 8 Requirements [Go to Page]
- 8.1 General
- 8.2 Chemical composition [Go to Page]
- 8.2.1 Cast analysis
- 8.2.2 Product analysis
- Table 3 - Chemical composition (cast analysis)a of austenitic steels, in % by mass
- Table 4 - Chemical composition (cast analysis)a of austenitic-ferritic steels, in % by mass
- Table 5 - Permissible deviations of the product analysis from specified limits on cast analysis given in Tables 3 and 4 [Go to Page]
- 8.3 Mechanical properties [Go to Page]
- 8.3.1 At room temperature
- 8.3.2 At elevated temperature
- 8.3.3 At low temperature
- Table 6 - Mechanical properties for wall thicknesses up to 60 mma of austenitic steels in the solution annealed condition (+AT) and information about intergranular corrosion
- Table 6 - Mechanical properties for wall thicknesses up to 60 mma of austenitic steels in the solution annealed condition (+AT) and information about intergranular corrosion (continued)
- Table 7 - Mechanical properties for wall thicknesses up to 30 mm of austenitic-ferritic steels in the solution annealed condition (+AT) and information about intergranular corrosion
- Table 8 – Minimum proof strength Rp0,2 and Rp1,0 at elevated temperatures for wall thicknesses up to 60 mma of austenitic steels in the solution annealed condition (+AT) and guideline for the limit temperature for intergranular corrosion
- Table 9 – Minimum proof strength Rp0,2 at elevated temperatures for wall thicknesses up to 30 mm of austenitic-ferritic steels in the solution annealed condition (+AT) and guideline for the limit temperature for intergranular corrosion [Go to Page]
- 8.4 Corrosion resistance
- 8.5 Appearance and internal soundness [Go to Page]
- 8.5.1 Appearance
- 8.5.2 Internal soundness [Go to Page]
- 8.5.2.1 General
- 8.5.2.2 Leak-tightness
- 8.5.2.3 Non-destructive testing
- 8.6 Straightness
- 8.7 Preparation of ends
- Figure 1 — Tube end bevel [Go to Page]
- 8.8 Dimensions, masses and tolerances [Go to Page]
- 8.8.1 Outside diameter and wall thickness
- 8.8.2 Mass
- 8.8.3 Lengths
- 8.8.4 Tolerances [Go to Page]
- 8.8.4.1 Tolerance on outside diameter and on wall thickness
- Table 10 - Tolerances on outside diameter and wall thickness [Go to Page]
- 8.8.4.2 Height of the weld seam
- Table 11 - Maximum height of the weld seam [Go to Page]
- 8.8.4.3 Radial offset of plate or strip edges at the weld
- 8.8.4.4 Tolerances on exact lengths
- Table 12 - Tolerances on exact lengths [Go to Page]
- 8.8.4.5 Out of roundness
- 9 Inspection [Go to Page]
- 9.1 Type of inspection
- 9.2 Inspection documents [Go to Page]
- 9.2.1 Types of inspection documents
- 9.2.2 Content of inspection documents
- 9.3 Summary of inspection and verification testing
- 10 Sampling [Go to Page]
- 10.1 Test unit
- Table 13 - Summary of inspection and testing [Go to Page]
- 10.2 Preparation of samples and test pieces [Go to Page]
- 10.2.1 Selection and preparation of samples for product analysis
- 10.2.2 Location, orientation and preparation of samples and test pieces for mechanical tests [Go to Page]
- 10.2.2.1 General
- 10.2.2.2 Test pieces for the tensile test of the base material
- 10.2.2.3 Test pieces for the tensile test of the weld
- 10.2.2.4 Test pieces for the flattening, ring tensile, drift expanding and ring expanding tests
- 10.2.2.5 Test pieces for weld bend test
- 10.2.2.6 Test pieces for the impact test
- Figure 2 — Impact test piece orientation [Go to Page]
- 10.2.2.7 Test pieces for the intergranular corrosion test
- 11 Verification test methods [Go to Page]
- 11.1 Chemical analysis
- 11.2 Tensile test on the base material [Go to Page]
- 11.2.1 At room temperature
- 11.2.2 At elevated temperature
- 11.3 Transverse tensile test on the weld
- 11.4 Technological tests [Go to Page]
- 11.4.1 General
- Table 14 – Technological tests [Go to Page]
- 11.4.2 Flattening test
- 11.4.3 Ring tensile test
- 11.4.4 Drift expanding test
- Table 15 - Drift expanding test requirements [Go to Page]
- 11.4.5 Ring expanding test
- 11.5 Weld bend test
- 11.6 Impact test
- 11.7 Intergranular corrosion test
- 11.8 Leak tightness test [Go to Page]
- 11.8.1 Hydrostatic test
- 11.8.2 Eddy current test
- 11.9 Dimensional inspection
- 11.10 Visual examination
- 11.11 Non-destructive testing
- Table 16 - Testing method and acceptance level for non-destructive testing of weld seam [Go to Page]
- 11.12 Material identification
- 11.13 Retests, sorting and reprocessing
- 12 Marking [Go to Page]
- 12.1 Marking to be applied
- 12.2 Additional marking
- 13 Handling and packaging
- Annex A (informative) Technical changes from the previous edition
- A.1 Introduction
- A.2 Technical changes
- Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC
- Table ZA.1 – Correspondence between this European Standard and Directive 97/23/EC [Go to Page]