NA 062

DIN Standards Committee Materials Testing

Standards [Withdrawn]

DIN 50938
Black oxide coatings on ferrous metal components - Requirements and test methods

Title (German)

Brünieren von Bauteilen aus Eisenwerkstoffen - Anforderungen und Prüfverfahren

Overview

This standard specifies requirements and test methods for black oxide coatings produced on ferrous metal components by a chemical reaction during an immersion process. Room-temperature blackening by means of acidic solutions containing heavy metals, and other methods of producing black oxide coatings are not covered by this standard.
Black oxide coating provides iron and steel (for example, cast iron, unalloyed and low-alloy steel) components with uniform black coatings to give the material a particular appearance while substantially retaining their dimensional accuracy.
This standard does not apply to mechanical fasteners; agreements shall be made for threads on objects. This standard does not cover semi-finished products.
This standard has been prepared by Working Committee NA 062-01-76 AA "Chemische und elektrochemische Überzüge" ("Chemical and electrochemical coatings") at DIN Standards Committee Materials Testing (NMP).

Document: references other documents

Responsible national committee

NA 062-01-76 AA - Chemical and electrochemical coatings  

Edition 2016-10
Original language German
Price from 56.60 €
Table of contents

Contact

Clemens Judersleben

Am DIN-Platz, Burggrafenstr. 6
10787 Berlin

Tel.: +49 30 2601-2210
Fax: +49 30 2601-42210

Send message to contact