BS EN 1676:2020 pdf download
BS EN 1676:2020 pdf download.Aluminium and aluminium alloys — Alloyed ingots for remelting – Specifications.
4 Ordering information
The order document shall define the product required and shall contain the following information:
a) designation of the aluminium alloy according to this document (or the purchaser code after agreement between the supplier and the purchaser);
b) form of the product;
c) quantity:
1) mass (in metric ton nes);
2) tolerance quantity. if required;
d) any requirements for certificates of conformity, test and/or analysis reports or inspection certificates;
e) any additional requirements agreed between the supplier and the purchaser, such as metallurgIcal structure, samples, delivery details, etc.
5 Requirements
5.1 Production and manufacturing processes
Unless otherwise specified in the order document, the production and manufacturing processes shall be left to the discretion of the producer.
Unless it is explicitly stated in the order document, no obligation shall be placed on the manufacturer to use the same processes for subsequent and similar orders. However, the supplier should inform the purchaser of any change that could affect the quality of the ingots or the final products.
5.2 Quality control
The supplier shall be responsible for carrying out all Inspection and tests required by the relevant European Standard and/or the particular specification, prior to shipment of the product. If the purchaser wishes to Inspect the product at the suppliers works, he shall stipulate this at the time of placing the order.
5.3 Chemical composition
Each grade of alloyed aluniinium ingot for rernelting shall be In accordance with the designations and chemical composition specified in Table 1.
NOTE For unalloyed aluminium ingots, see EN 576.
For alloys that are not in Table 1. the writing rules for designations and chemical compositions, as specified in EN 1780-1, EN 1780-2 and EN 1780-3, shall be applied.
If the purchaser requires content limits for elements not specified in this document, these limits shall be stated on the order document, after agreement between supplier and purchaser.
6.3 Rounding rules for determination of compliance
In recording chemical analysis results, the number representing the result for any value specified In this document shall be expressed to the same number of decimal places as the corresponding number in this document.
The following rounding rules shall be used for determination of compliance with this document:
a) when the figure immediately after the last figure to be retained Is less than 5, the last figure to be retained remains unchanged:
b) when the figure immediately after the last figure to be retained Is greater than 5. or equal to 5 and followed by at least one figure other than zero, the last figure to be retained is increased by one;
c) when the figure immediately after the last figure to be retained is equal to 5 and followed by zeros only, the last figure to be retained remains unchanged if even, and Is increased by one If odd.
See also EN 1780-3.
7 InspectIon documents
The producer shall supply the grade of aluminium alloy quoted on the order document. By agreement between the supplier and the purchaser or when specified on the order document, the consignment shall be accompanied by a certificate listing the results of the analysis of the chemical elements noted in Table I and any other element which could have been previously requested, as a specific inspection.
8 Marking of products
Unless otherwise Indicated on the order document, each unit (i.e. bundle of Ingols, T-bar or sow) shall bear one or more marks, which show the following
— the producer identification;
— the alloy designation;
— the melt number;
— the mass of the unit.
The method of marking is left to the discretion or tne supplier, but it snail fle SUttlClefltly weather-prom and shall not be a source of contamination.
It is recommended that each unit carries a warning about the risk of explosion when ingots are getting in contact with liquid metal without first being properly dried (see 5.4).
9 Packaging
Small ingots shall be gathered together in bundles, the mass of which should not generally exceed one ton ne.
Each bundle shall be made from only one melt.
The packaging shall be sufficiently strong for the bundle to be handled without breakage.
