BS EN 12392:2016 pdf free download
BS EN 12392:2016 pdf free download.Aluminium and aluminium alloys – Wrought products and cast products – Special requirements for products intended for the production of pressure equipment.
BS EN 12392 specifies the material requirements and testing procedures applicable to wrought and cast aluminium and aluminium alloys intended for use in the production of pressure equipment.
This European Standard covers:
— the products forms, grades and tempers of wrought and cast aluminium and aluminium alloys which may be used for such applications together with data for wrought and cast alloys over their permissible working temperature ranges;
— the permissible alloys/ tempers covered by this are those given in Table Al and in 8.1 for wrought alloys and in Table A.2 and in B.2 for castings;
— the technical conditions for inspection and delivery, mechanical property limits and tolerances on form and dimensions by reference to the appropriate European standards for the relevant wrought and cast aluminium and aluminium alloys, and
— additional requirements which are specific to pressure equipment applications.
It applies to hot-rolled plate, cold-rolled sheet/ strip/ circles, extruded or extruded and cold drawn rod/bar, tube, extruded open / hollow profiles, forgings and castings, by this standard are those given in Table A.1 for wrought alloys and in Table A.2 for castings.
It is the sole objective of this standard to cover materials only for pressure purposes and it excludes any elements of fabrication or fabrication methods for pressure equipment; such information can be found in the relevant standards listed in the “Bibliography section.
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.
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 12258-1 and the following apply.
4 Materials
4.1 General
The materials covered by this standard are to be used in a wide range of pressure equipment operating over diverse range of both pressure and temperature. The range of applications extends from relatively low pressure automotive equipment such as heat exchangers to heavy duty applications including unfired pressure vessels and piping used in pressure equipment. As a result, it will be necessary for the standard to detail an extensive range of aluminium product forms, alloys and tempers as follows:
— sheet, strip, plate and circles (EN 485, EN 941);
— cold drawn rod/bar and tube (EN 754);
— extruded rod/bar, tube and profiles (EN 755);
— precision profiles (EN 12020);
— extruded coiled tube (EN 13957);
— cold drawn coiled tube (EN 13958);
— forgings (EN 586);
— castings (EN 1706).
4.2 Wrought products
Applicable alloys and the chemical compositions for wrought alloys are given in Table 2. The chemical compositions of aluminium and aluminium alloys are specilled in percentage by mass. Limits for impurities are expressed as maxima that also will apply to alloying elements unless expressed as a range. Aluminium is specified as a minimum for unalloyed aluminium, and as a remainder for aluminium alloys.
4.3 Cast products
Applicable alloys and the chemical compositions for cast alloys are given in Table 3. The chemical compositions of aluminium and aluminium alloys are specified in percentage by mass. Limits for impurities are expressed as maxima which also will apply to alloying elements unless expressed as a range.
5 Technical conditions for inspection and delivery
5.1 Manufacturing methods
5.1.1 General
The provisions of EN 45-1 (sheets, strips and plates), EN 941 circies), EN 155-1 textruued rods/bars, tubes and profiles), EN 754-1 (cold drawn rods/bars, and tubes), EN 12020-1, EN 13957, EN 13958, EN 586-1 (forgings in seamless rolled rings), EN 1559-1 (Founding) and EN 1559-4 (Founding) apply with the amendments and additions specilied in 5.2 to 5.5 below.
Unless otherwise agreed between supplier and purchaser, the manufacturing methods used shall be left to the discretion of the supplier. In addition, there shall be no obligation on the supplier to use the same processes or process route for subsequent or similar orders.
5.1.2 Specific requirements regarding porthole extruded and/or drawn products
Regarding porthole extruded and/or drawn products. limitations for safe application of porthole extruded and/or drawn products are provided at Tables 4 and 5:
— Table 4 applies to porthole extruded tube (EN 755-8), porthole extruded and drawn tube (EN 754-8), porthole extruded hollow profiles (EN 755-9) and porthole extruded precision profiles (EN 12020) and may be used up to and including an outside diameter of 600 mm (DN 600) and a thickness (t) of maximum 20 mm
— Table 5 applies to porthole extruded coiled tube (EN 13957) and porthole extruded and drawn coiled tube EN 13958 and may be used up to and including an outside diameter 50 mm (DN 50) and a thickness (t) of maximum 5 mm.BS EN 12392 pdf free download.
