BS EN 13920-12:2003 – Aluminium and aluminium alloys — Scrap — Part 12: Turnings consisting of one single alloy
1 Scope
This European Standard specifies characteristics, chemical composition and metal yield of scrap which consists of aluminium turnings of one single wrought (EN 573-3) or cast (EN 1706) specified alloy.
EXAMPLE Scalpings, millings, borings from plates, extruded profiles, castings, etc.
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text, and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments).
prEN 12258-3:2000, Aluminium and aluminium alloys — Terms and definitions — Part 3: Scrap.
EN 13920-1:2003, Aluminium and aluminium alloys — Scrap — Part 1: General requirements, sampling and tests.
3 Terms and definitions
For the purposes of this European Standard, the terms and definitions given in prEN 12258-3:2000 and EN 13920-1:2003 apply.
4 Ordering information
The ordering information shall include:
the number of this European Standard (EN 13920-12);
the scrap category (turnings consisting of one single alloy);
the designation and/or the chemical composition of the alloy;
the gross mass of the consignment;
the definition of the beginning and end of the period during which the scrap shall be delivered;
any characteristics deviating from those specified under 5.1, e.g. particle size, presence of foreign material.
The ordering information should include:
information about the origin of the scrap;
any information about size and surface condition of the particles, whenever meaningful.
5 Requirements
5.1 General
In addition to the requirements specified in EN 13920-1, the requirements given in 5.2, 5.3 and 5.4 shall be met.
If the scrap does not meet all these requirements, the supplier shall notify the deviating characteristics to the purchaser and shall obtain his agreement before shipment.
5.2 Characteristics
The scrap shall be unoxidized and the following tolerances apply to the delivered mass:
0,5 % (mass fraction) of magnetic iron;
5 % (mass fraction) of moisture and oil;
3% (mass fraction) of fines passing through a 20 mesh sieve (0,71 mm opening), after drying.
The scrap shall not contain any other foreign material.
5.3 Chemical composition
The turnings shall have the chemical composition of the alloy specified in the contract.
5.4 Metal yield
The metal yield of turnings, after drying and removal of free iron, as determined in accordance with EN 13920-1 shall be≥90 %.
6 Classification procedure, treatment of non-conformities and arbitration
The classification procedure which includes sampling and tests, the treatment of non-conformities and arbitration shall be in accordance with EN 13920-1, as appropriate.
BS EN 13920-12:2003 – Aluminium and aluminium alloys — Scrap — Part 12: Turnings consisting of one single alloy