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ISO 439:2020

Steel and cast iron — Determination of silicon content — Gravimetric method ISO 439:2020

Publication date:   Feb 6, 2020

General information

90.20 Standard under periodical review   Jan 15, 2025

ISO

ISO/TC 17/SC 1 Methods of determination of chemical composition

International Standard

77.080.01   Ferrous metals in general

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Scope

This document specifies a gravimetric method for the determination of the silicon content in steel and cast iron.
The method is applicable to silicon contents between 0,10 % (mass fraction) and 5,0 % {mass fraction).
NOTE For samples containing molybdenum, niobium, tantalum, titanium, tungsten, zirconium or high levels of chromium, the results are less accurate than for unalloyed matrixes.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 439:1994

NOW

PUBLISHED
ISO 439:2020
90.20 Standard under periodical review
Jan 15, 2025