BS ISO 23700:2021 pdf download – Wrought magnesium and magnesium alloys — Rolled plates and sheets
This document specifies chemical composition, mechanical properties, dimension and shape tolerance,heat treatment and the technical conditions for inspection and delivery of rolled magnesium and magnesium alloy plates and sheets.
It is applicable to rolled magnesium and magnesium alloy plates and sheets.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 3116, Magnesium and magnesium alloys — Wrought magnesium and magnesium alloys
ISO 6892-1, Metallic materials — Tensile testing — Part 1: Method of test at room temperature
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
product that is rectangular in cross-section with nominal thickness less than 6 mm, but not less than 0,20 mm, and with slit, sheared or sawed edges
product that is rectangular in cross-section and with thickness not less than 6 mm with sheared or sawn edges
4 Orders or tenders
The order or tender shall define the product required and shall contain the following details:
a) the type and form of the product:
1) designation of the magnesium or magnesium alloy;
2) form of the product (sheet, plate);
b) the metallurgical temper (degree of hardness or heat treatment condition) of the material for delivery and, if different, the metallurgical temper for use;
c) the number of this document, i.e. ISO 23700, the specification number, or, where none exists, the properties agreed between the supplier and the purchaser;
d) the dimensions and shape of the product (thickness, width, length, diameter of the coil);
e) the tolerances of the dimensions and form, with reference to the appropriate clause or subclause of this document;
f) the quantity;
g) any requirements for certificates of conformity, test and/or analysis;
h) any special requirements agreed between the supplier and the purchaser (e.g. drawings).
The following symbols shall be used for temper designation:
— O: annealed;
— H112: strain hardened from working at elevated temperature or from a limited amount of cold work, and for which there are mechanical properties limits;
— H × 4: half hardened (strain hardened to give an ultimate tensile strength approximately midway between that of annealed and H × 8 temper);
— H × 2: quarter hardened (strain hardened to give an ultimate tensile strength approximately midway between that of annealed and H × 4 temper);
— T5: cooled from an elevated temperature shaping process and then artificially aged.
The alloy designation and temper should be as given in Table 1.BS ISO 23700 pdf download.