BS EN 10217-7:2014
$167.15
Welded steel tubes for pressure purposes. Technical delivery conditions – Stainless steel tubes
| Published By | Publication Date | Number of Pages |
| BSI | 2014 | 40 |
This Part of EN 10217 specifies the technical delivery conditions in two test categories for welded tubes of circular cross-section made of austenitic and austenitic-ferritic stainless steel which are intended for pressure and corrosion resisting purposes at room temperature, at low temperatures or at elevated temperatures.
NOTE
Once this standard is published in the Official Journal of the European Union (OJEU) under Directive 97/23/EC , pressure equipment directive, presumption of conformity to the Essential Safety Requirements (ESR) of Directive 97/23/EC is limited to technical data of materials in this standard and does not presume adequacy of the material to a specific item of equipment. Consequently, the assessment of the technical data stated in this material standard against the design requirements of this specific item of equipment to verify that the ESRs of the Pressure Equipment Directive are satisfied, needs to be done by the designer or manufacturer of the pressure equipment, taking also into account the subsequent manufacturing processes which may affect properties of the base materials.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | Foreword |
| 7 | 1 Scope 2 Normative references |
| 8 | 3 Terms and definitions |
| 9 | 4 Symbols 5 Classification and designation 5.1 Classification 5.2 Designation 6 Information to be supplied by the purchaser 6.1 Mandatory information 6.2 Options |
| 11 | 6.3 Examples of an order 6.3.1 Example 1 6.3.2 Example 2 7 Manufacturing process 7.1 Steelmaking process 7.2 Tube manufacture and delivery conditions |
| 12 | Table 1 – Tube manufacturing process, route, starting material, forming operation and weld condition |
| 13 | Table 2 – Delivery conditions 8 Requirements 8.1 General |
| 14 | 8.2 Chemical composition 8.2.1 Cast analysis 8.2.2 Product analysis |
| 15 | Table 3 – Chemical composition (cast analysis)a of austenitic steels, in % by mass |
| 16 | Table 4 – Chemical composition (cast analysis)a of austenitic-ferritic steels, in % by mass |
| 17 | Table 5 – Permissible deviations of the product analysis from specified limits on cast analysis given in Tables 3 and 4 8.3 Mechanical properties 8.3.1 At room temperature |
| 18 | 8.3.2 At elevated temperature 8.3.3 At low temperature |
| 19 | 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 |
| 20 | 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) |
| 21 | 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 |
| 22 | 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 |
| 23 | 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 8.4 Corrosion resistance 8.5 Appearance and internal soundness 8.5.1 Appearance |
| 24 | 8.5.2 Internal soundness 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 |
| 25 | Figure 1 — Tube end bevel 8.8 Dimensions, masses and tolerances 8.8.1 Outside diameter and wall thickness 8.8.2 Mass 8.8.3 Lengths 8.8.4 Tolerances 8.8.4.1 Tolerance on outside diameter and on wall thickness Table 10 – Tolerances on outside diameter and wall thickness |
| 26 | 8.8.4.2 Height of the weld seam Table 11 – Maximum height of the weld seam 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 8.8.4.5 Out of roundness |
| 27 | 9 Inspection 9.1 Type of inspection 9.2 Inspection documents 9.2.1 Types of inspection documents 9.2.2 Content of inspection documents |
| 28 | 9.3 Summary of inspection and verification testing 10 Sampling 10.1 Test unit |
| 29 | Table 13 – Summary of inspection and testing |
| 30 | 10.2 Preparation of samples and test pieces 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 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 |
| 31 | Figure 2 — Impact test piece orientation 10.2.2.7 Test pieces for the intergranular corrosion test 11 Verification test methods 11.1 Chemical analysis 11.2 Tensile test on the base material 11.2.1 At room temperature 11.2.2 At elevated temperature |
| 32 | 11.3 Transverse tensile test on the weld 11.4 Technological tests 11.4.1 General Table 14 – Technological tests 11.4.2 Flattening test 11.4.3 Ring tensile test |
| 33 | 11.4.4 Drift expanding test Table 15 – Drift expanding test requirements 11.4.5 Ring expanding test 11.5 Weld bend test 11.6 Impact test |
| 34 | 11.7 Intergranular corrosion test 11.8 Leak tightness test 11.8.1 Hydrostatic test 11.8.2 Eddy current test |
| 35 | 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 11.12 Material identification |
| 36 | 11.13 Retests, sorting and reprocessing 12 Marking 12.1 Marking to be applied 12.2 Additional marking 13 Handling and packaging |
| 37 | Annex A (informative) Technical changes from the previous edition A.1 Introduction A.2 Technical changes |
| 38 | 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 |
