BS EN 13920-7:2003 – Aluminium and aluminium alloys — Scrap — Part 7: Scrap consisting of castings
1 Scope
This European Standard specifies characteristics, chemical composition and metal yield of aluminium scrap consisting of aluminium castings in entire or fragmented pieces.
Examples
Production scrap from foundries, e.g. rejected pieces and risings.
Collected castings of various alloys e.g. from maintenance or dismantling of vehicles, household appliances, industrial machinery etc.
Selected whole castings, e.g. pistons, wheels.
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 13920-7);
the scrap category (scrap consisting of castings);
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 5.2, 5.3 and 5.4.
The ordering information should include:
information about the origin of the scrap;
any information about size and surface condition of the pieces, 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 not contain pieces larger than (600×600×400) mm. The percentage of volatile substances shall not exceed 2 % (mass fraction). The total percentage of other non-metallic foreign material shall not exceed 2 % (mass fraction). The total percentage of foreign metallic material, either free or attached, shall not exceed 2 % (mass fraction).
A maximum of 5 % (mass fraction) of pieces with less than 5 cm maximum diameter is permitted.
5.3 Chemical composition
If not otherwise agreed, the chemical composition of a lot of mixed castings after deironing and melting shall conform to the requirements given in Table 1.
BS EN 13920-7:2003 – Aluminium and aluminium alloys — Scrap — Part 7: Scrap consisting of castings