ISO/TC 79/SC 5 - Magnesium and alloys of cast or wrought magnesium

This document specifies an inductively coupled plasma optical emission spectrometric method for the determination of nickel contents between 0,000 2 % (mass fraction) and 0,2 % (mass fraction) in magnesium and magnesium alloys.

This document specifies the chemical composition of cast unalloyed magnesium. It specifies classification, designation, testing rules, marking, packing, transportation, storage, and information subject to agreement between the manufacturer and the purchaser. This document applies to cast unalloyed magnesium produced by the silicon-thermo process or molten salt electrolysis process.

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.

This document specifies the technical conditions for inspection and delivery of wrought magnesium and magnesium alloy rods/bars and tubes for general engineering applications. It is applicable to wrought magnesium and magnesium alloy extruded round, square and hexagonal rods/bars and seamless round tubes (hereafter referred to as "tubes").

This document specifies the grades and the corresponding requirements for magnesium alloy ingots for anodes and for magnesium alloy cast anodes.

This document specifies the methods for the determination of mercury in magnesium and magnesium alloys by inductively coupled plasma (ICP) atomic mass spectrometric analysis and by atomic absorption spectrometric analysis.

This document specifies the chemical composition and mechanical properties of magnesium and magnesium alloys for wrought products in the form of bars and solid sections, tubes and hollow sections, forgings, and plate and sheet.

This document specifies a method for the determination of lithium contents in magnesium lithium alloys by inductively coupled plasma (ICP) optical emission spectrometry. The method is applicable to the determination of lithium content between 3,0 % and 16,0 % (mass fraction) in magnesium lithium alloys.

ISO 16220:2017 specifies the chemical composition of magnesium alloy ingots and castings. It also specifies the mechanical properties of separately cast samples of these alloys (see Clause 7). By agreement, it also specifies the mechanical properties of magnesium alloy castings determined from samples cut from a casting.

ISO 16374:2016 describes a method to evaluate the cleanliness and the quality of magnesium and magnesium alloys ingots. The method includes naked eye inspection, the composition analysis and a brightness evaluation procedure based on an ISO standard.

ISO 11707:2011 specifies wet analytical methods for lead and cadmium. There are two methods for the simultaneous determination of lead and cadmium in magnesium and its alloys. Method A uses a matrix-matching technique for unalloyed magnesium and its alloys by inductively coupled plasma/atomic emission spectrometry (ICP/AES) or flame atomic absorption spectrometry (FAAS), Method B uses an extraction method for magnesium alloys with pretreatment procedures. Generally, Method A is recommended; also, Method B is designated where the matrix-matching method cannot be adopted due to complicated preparation of the assay standard solutions or where the combination of solvent extraction and FAAS is useful for analysts.

ISO 23079:2005 specifies general requirements, classification and acceptance for the different classes of magnesium returns.

ISO 8287:2011 specifies the chemical composition of cast unalloyed magnesium. It specifies classification, designation, testing rules, marking, packing, transportation, storage, and information contained in the contract. ISO 8287:2011 is for cast unalloyed magnesium produced by the silicon-thermo process or molten salt electrolysis process.

ISO 26202:2007 specifies the chemical composition of magnesium alloy ingots for anodes and the chemical composition of magnesium alloy anode castings.

ISO 3116:2007 specifies the chemical composition and mechanical properties of magnesium alloys for wrought products in the form of bars and solid sections, tubes and hollow sections, forgings, and plate and sheet.

ISO 16220:2005 specifies the chemical composition of magnesium alloy ingots. It also specifies the chemical composition of magnesium alloy castings and the mechanical properties of separately cast samples of these alloys. By agreement, ISO 16220:2005 also specifies the mechanical properties of magnesium alloy castings determined from samples cut from a casting.

The products covered in this document may be manufactured from any wrought magnesium alloys, especially from magnesium-aluminium-zinc alloys and magnesium-zirconium-zinc alloys. Tables give tolerances on diameter, random and fixed lengths, and nominal wall thickness of tubes. Straightness is also specified.

The standard specifies the dimensions and method of production of reference test bars for magnesium alloy sand castings. A figure shows shape and dimensions of a mould pattern which allows the casting of a set of four reference test bars.