Abstract

This document specifies a method for the spectrophotometric determination of nitrogen in steels. The method is primarily intended for the determination of total nitrogen in very low nitrogen non-alloy steels. It may be used, however, for any low nitrogen ferrous alloy that is soluble in hydrochloric acid provided that the acid-resistant form of silicon nitride is not present. This highly resistant nitride has been found only in samples of silicon steels manufactured without aluminium addition and then only in sheet material. The method is applicable to nitrogen contents from 0,0005 to 0,005 % (m/m). NOTE The method has also been successfully applied to a pure iron with a nitrogen content of 0,0038 % (m/m) - see Annex.

Begin

2023-04-05

WI

EC102114

Planned document number

DIN EN 10179

Project number

02101769

Responsible national committee

NA 021-00-30 AA - Methods of chemical analysis  

Responsible european committee

CEN/TC 459/SC 2/WG 1 - Determination of H, C, N, O and S in steels and ferrous materials  

draft standard

Steels - Determination of nitrogen (trace amounts) - Spectrophotometric method; German and English version prEN 10179:2023
2023-07
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previous edition(s)

Chemical analysis of ferrous materials; determination of nitrogen (trace amounts) in steels; spectrophotometric method; German version EN 10179:1989
1990-04

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