This document 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.<\/p>\n
Once the reference of this document is published in the Official Journal of the European Union (OJEU) under Directive 2014\/68\/EU, pressure equipment directive, presumption of conformity to the Essential Safety Requirements (ESR) of Directive 2014\/68\/EU is limited to technical data of materials in this document 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 of the pressure equipment, taking also into account the subsequent manufacturing processes which could affect properties of the base materials.<\/p>\n<\/div>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 2<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 1 Scope 2 Normative references <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 3 Terms and definitions 4 Symbols 5 Classification and designation 5.1 Classification <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 5.2 Designation 6 Information to be supplied by the purchaser 6.1 Mandatory information 6.2 Options <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 6.3 Examples of an order 6.3.1 Example 1 <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 6.3.2 Example 2 7 Manufacturing process 7.1 Steelmaking process 7.2 Tube manufacture and conditions <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 8 Requirements 8.1 General 8.2 Chemical composition 8.2.1 Cast analysis 8.2.2 Product analysis <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | 8.3 Mechanical properties 8.3.1 At room temperature <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | 8.3.2 At elevated temperature 8.3.3 At low temperature <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | 8.4 Corrosion resistance 8.5 Appearance and internal soundness 8.5.1 Appearance <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | 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 <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | 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 <\/td>\n<\/tr>\n | ||||||
| 30<\/td>\n | 8.8.4.2 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 <\/td>\n<\/tr>\n | ||||||
| 31<\/td>\n | 8.8.4.5 Out of roundness 9 Inspection 9.1 Type of inspection 9.2 Inspection documents 9.2.1 Types of inspection documents <\/td>\n<\/tr>\n | ||||||
| 32<\/td>\n | 9.2.2 Content of inspection documents 9.3 Summary of inspection and verification testing <\/td>\n<\/tr>\n | ||||||
| 33<\/td>\n | 10 Sampling 10.1 Test unit <\/td>\n<\/tr>\n | ||||||
| 34<\/td>\n | 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 <\/td>\n<\/tr>\n | ||||||
| 35<\/td>\n | 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 10.2.2.7 Test pieces for the intergranular corrosion test <\/td>\n<\/tr>\n | ||||||
| 36<\/td>\n | 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 11.3 Transverse tensile test on the weld 11.4 Technological tests 11.4.1 General <\/td>\n<\/tr>\n | ||||||
| 37<\/td>\n | 11.4.2 Flattening test 11.4.3 Ring tensile test 11.4.4 Drift expanding test <\/td>\n<\/tr>\n | ||||||
| 38<\/td>\n | 11.4.5 Ring expanding test 11.5 Weld bend test 11.6 Impact test <\/td>\n<\/tr>\n | ||||||
| 39<\/td>\n | 11.7 Intergranular corrosion test 11.8 Leak tightness test 11.8.1 Hydrostatic test 11.8.2 Eddy current test <\/td>\n<\/tr>\n | ||||||
| 40<\/td>\n | 11.9 Dimensional inspection 11.10 Visual examination 11.11 Non-destructive testing <\/td>\n<\/tr>\n | ||||||
| 41<\/td>\n | 11.12 Material identification 11.13 Retests, sorting and reprocessing 12 Marking 12.1 Marking to be applied 12.2 Additional marking <\/td>\n<\/tr>\n | ||||||
| 42<\/td>\n | 13 Handling and packaging <\/td>\n<\/tr>\n | ||||||
| 43<\/td>\n | Annex A (informative)Technical changes from the previous edition A.1 Introduction A.2 Technical changes <\/td>\n<\/tr>\n | ||||||
| 45<\/td>\n | Annex ZA (informative)Relationship between this European Standard and the Essential Requirements of Directive 2014\/68\/EU aimed to be covered <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Welded steel tubes for pressure purposes. Technical delivery conditions – Stainless steel tubes<\/b><\/p>\n |