BS EN 10028-7-2016 pdf free download.Flat products made of steels for pressure purposes Part 7: Stainless steels
This European Standard specifies requirements for flat products for pressure purposes made of stainless steels, including austenitic creep resisting steels, in thicknesses as indicated in Tables 7 to 10.
The requirements of EN 10028-1 also apply.
NOTE 1 The steel grades covered by this European Standard have been selected from EN 10088–1.
NOTE 2 Once this European Standard is published in the Official Journal of the European Union (OJEU) under Directive 2014/68/EU, presumption of conformity to the Essential Safety Requirements (ESRs) of Directive 2014/68/EU is limited to technical data of materials in this European Standard (Part 1 and Part 7) 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.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 10028-1, Flat products made of steels for pressure purposes — Part 1: General requirements
EN 10088-1:2014, Stainless steels — Part 1: List of stainless steels
EN ISO 3651-2, Determination of resistance to intergranular corrosion of stainless steels — Part 2: Ferritic, austenitic and ferritic-austenitic (duplex) stainless steels — Corrosion test in media containing sulfuric acid (ISO 3651-2)
EN ISO 9444-2, Continuously hot-rolled stainless steel — Tolerances on dimensions and form — Part 2: Wide strip and sheet/plate (ISO 9444-2)
EN ISO 9445-2, Continuously cold-rolled stainless steel — Tolerances on dimensions and form — Part 2: Wide strip and plate/sheet (ISO 9445-2)
EN ISO 18286, Hot-rolled stainless steel plates — Tolerances on dimensions and shape (ISO 18286)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 10028-1 and the following apply.
3.1 cryogenic temperature
temperature lower than –75 °C used in the liquefaction of gases
4 Tolerances on dimensions
Shall be according to the following standards:
— EN ISO 9445-2 for product form C;
— EN ISO 9444-2 for product form H;
— EN ISO 18286 for product form P.
5 Calculation of mass
For density values, shall be according to EN 10088-1:2014, Annex E.
6 Classification and designation
Shall be according to EN 10028-1.
7 Information to be supplied by the purchaser
7.1 Mandatory information
Shall be according to EN 10028-1.
7.2 Options
The relevant options of EN 10028-1 apply. If the purchaser does not indicate a wish to implement any of these options at the time of enquiry and order, the products shall be supplied in accordance with the basic specification (see EN 10028-1).
7.3 Example for ordering
10 plates made of a steel grade with the name X5CrNi18-10 and the number 1.4301 as specified in EN 10028-7 with nominal dimensions, thickness = 8 mm, width = 2 000 mm, length = 5 000 mm;
tolerances on dimensions, shape and mass as specified in EN ISO 18286 with thickness tolerance class B and “normal” flatness tolerance according to process route 1D (see Table 6), inspection document 3.1 as specified in EN 10204:
10 plates– EN ISO 18286:—, 8x2000x5000 B–steel EN 10028-7–X5CrNi18-10+1D–inspection document  3.1 or
10 plates– EN ISO 18286:—, 8x2000x5000 B–steel EN 10028-7–1+1D–inspection document 3.1
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.BS EN 10028-7 pdf download.