BS EN 10028-7 pdf free download

BS EN 10028-7 pdf free download. Flat products made of steels for pressure purposes Part 7: Stainless steels.
8 Requirements 8.1 Steelmaking process Shall be according to EN 10028-1. 8.2 Delivery condition The products shall be supplied in the delivery condition specified in the order by reference to the process route given in Table 6 and, where alternatives exist, to the treatment conditions given in Tables 7 to 10. Guidelines for further treatment including heat treatment are given in Annex A. 8.3 Chemical composition and chemical corrosion properties 8.3.1 The chemical composition requirements given in Tables 1 to 4 shall apply in respect of the chemical composition according to the cast analysis. 8.3.2 The product analysis may deviate from the limiting values for the cast analysis given in Tables 1 to 4 by the values listed in Table 5. 8.3.3 The specifications in Tables 7, 9 and 10 shall apply in respect to resistance to intergranular corrosion as defined in EN ISO 3651-2, for ferritic, austenitic and austenitic-ferritic steels. NOTE 1 EN ISO 3651-2 is not applicable for testing martensitic steels. NOTE 2 The corrosion resistance of stainless steels is very dependent on the type of environment and can therefore not always be clearly ascertained through laboratory tests. It is therefore advisable to draw on the available experience of the use of the steels. 8.4 Mechanical properties 8.4.1 The tensile properties at room temperature and the impact energy at 20 °C and at low temperatures as specified in Tables 7 to 10 apply for the relevant specified heat treatment condition. NOTE Austenitic stainless steels are insensitive to brittle fracture in the solution annealed condition. As they have a good resistance to shock loads, due to their high impact energy, also at very low (cryogenic) temperatures, they are useful for applications at such temperatures (see also the NOTE to Tables 9 and 10). 8.4.2 The values in Tables 11 to 14 apply for the 0,2 % and 1,0 % proof strength at elevated temperatures. Additionally, the values in Table 15 apply for the tensile strength at elevated temperatures for austenitic steels. 8.4.3 Tensile strength values at elevated temperatures for austenitic-ferritic steels are given for guidance in Annex C. 8.4.4 Annex D gives mean values as preliminary data for the purchaser about strength for 1 % (plastic) creep strain and creep rupture. These data apply for the solution annealed condition only (see Table A.3). 8.4.5 In Annex E preliminary data on mechanical properties at low temperatures of austenitic steels are listed. 8.5 Surface condition Shall be according to EN 10028-1 and Table 6. 8.6 Internal soundness Shall be according to EN 10028-1. 8.7 Physical properties For reference data on physical properties, see EN 10088-1:2014, Annex E. 8.8 Weldability 8.8.1 General The choice of the appropriate welding method and welding parameters is under the responsibility of the equipment manufacturer. 8.8.2 Post weld heat treatment Guidelines for the purchaser on post weld heat treatment are given in Annex B. 9 Inspection 9.1 Types of inspection and inspection documents Shall be according to EN 10028-1. 9.2 Tests to be carried out Shall be according to Table 16 and EN 10028-1. 9.3 Re-tests, sorting and reprocessing Shall be according to EN 10028-1. 10 Sampling 10.1 Frequency of testing Shall be according to Table 16 and EN 10028-1. 10.2 Selection and preparation of samples and test pieces Shall be according to EN 10028-1. 11 Test methods Shall be according to EN 10028-1. 12 Marking Shall be according to EN 10028-1.BS EN 10028-7  pdf download.