BS EN 541-2006 pdf download.Aluminium and aluminium alloys Rolled products for cans . closures and lids – Specifications.
e) quantity:
— mass, area or number of pieces;
f) any requirements for inspection documents; g) any special requirements for packaging:
— mass per coil and per packaging unit; number of sheets per stack:
position of coil axis (vertical or horizontal);
— direction of winding (see Clause 10):
— design of pallet;
ti) any special requirements agreed between supplier and purchaser:
marking of products;
— flagging of joints.
4.2 Requirements
4.2.1 Production and manufacturing processes
Unless otherwise specified in the order, the production and manufacturing processes shall be left to the discretion of the manufacturer. Any changes in the processes for subsequent and similar orders which significantly affect the properties of the product, whether or not specified in this standard, shall be agreed by the purchaser.
4.2.2 Quality control
The supplier shall be responsible for the performance of all inspection and tests required by this European
Standard and/or the particular specification prior to the shipment of the product
4.2.3 Chemical composition
The chemical composition shall comply with the requirements as specified in EN 573-3 and for alloy EN AW-5006 as specified in Annex D and EN 602.
4.2.4 Freedom from defects
The product shall be free from defects prejudicial to its suitable and proper use.
Sampling shall be carried out at the time of casting according to EN 14361. The average content of each sample shall be within the specification for the chemical composition.
NOTE EN 14361 includes criteria for how to determine the number, volume and shape of samples, the time and location of sampling and the design and maintenance of the tools, in order to make sure that the average chemical composition of the sample represents the average chemical composition of the whole melt.
4.3.1.2 Specimens for mechanical testing
4.3.1.2.1 Number of specimens
Unless otherwise specified, at least one specimen shall be taken from each master coil of an Inspection lot.
4.3.1.2.2 Location and size
Specimens shall be taken from samples in such a way that it is possible to orientate the test pieces parallel with the rolling direction (longitudinal direction).
The specimens shall be sufficiently large enough to allow the manufacture of the test pieces necessary to carry out the required tests and shall include sufficient metal to allow the manufacture of test pieces for any retests required.
4.3.1.2.3 Identification of specimens
Each specimen shall be marked in such a way that, after removal, it is still possible to identify the product from
which it was taken and its location and orientation.
4.3.1.3 Test pieces for tensile testing
4.3.1.3.1 Number of test pieces
One test piece shall be taken from each specimen for the tensile test. The shapes and dimensions for tensile test pieces shall comply with EN 10002-1.
4.3.1.3.2 Identification of the test pieces
Each test piece shall be marked in such a manner that it is possible to identify the inspection lot from which it
was taken and if required, its location and orientation in the product.
4.3.1.3.3 Machining
Any machining necessary shall be carried out in such a manner that it does not change the characteristics of the metal in the test piece.
The tensile test shall be carried out in accordance with EN 10002-1 on test pieces with a reduced section 12.5 mm wide taken parallel with the rolling direction (longitudinal direction). The elongation shall be measured on an original gauge length of 50 mm. Mechanical properties after simulated lacquer stoving shall be determined after heat treating the test pieces at 205 °C for 20 mm in a laboratory furnace.
For determination of compliance, yield strength and tensile strength values shall be rounded to the nearest I MPa and elongation values to the nearest 0.1 % using the rounding rules given in Annex B.
4.3.2.3 Measurement of dimensions
The dimensions shall be measured by measuring instruments that are accurate to 1/5 of the relevant tolerance.
All dimensions shall be checked at the ambient temperature of the workshop or laboratory, and, in case of dispute, at a temperature of (20 ± 2) C.
4.3.2.4 Earing test (anisotropy)
The earing test shall be carried out either in accordance with the relevant European Standard or as agreed
between the supplier and purchaser.
4.3.2.5 Other tests
If other mechanical or physical tests are required (e.g. thickness of coatings, lubricants), these tests shall be carned out either in accordance with the relevant European Standards or as agreed between supplier and purchaser.
4.3.3 Retests
4.3.3.1 Mechanical properties
If any of the test pieces first selected fail to meet the requirements for the mechanical tests, the following procedure shall be applied:
— If an error is dearly identified, either in the test piece preparation or in the test procedure, then the corresponding result shall be disregarded and the testing resumed as initially required.
— If this is not the case, then two further specimens shall be taken from the same lot, one being from the same unit of the product (sheet, strip, etc.) from which the original specimen was taken, unless that piece of product has been withdrawn by the supplier.
If both test pieces form these additional specimens comply with the requirement, the lot which they represent shall be deemed to comply with this standard.BS EN 541-2006 pdf download.