<p>This International Standard specifies requirements for black oxide coatings on iron and steel (including cast and</p>
<p>wrought iron, carbon steel, low alloyed steel and stainless steel). Black oxide coatings can be used to diminish</p>
<p>friction between sliding or bearing surfaces or for decorative purposes or to reduce light reflection. Such coatings,</p>
<p>with or without supplementary preservative treatment, may be used where a black surface is required. Only very</p>
<p>limited corrosion protection is obtained under mildly corrosive conditions even with preservative treatment.</p>
<p>This International Standard does not specify requirements for the condition, finish or surface roughness of the</p>
<p>substrate prior to black oxidizing.</p>
Registration number (WIID)
19350
Scope
<p>This International Standard specifies requirements for black oxide coatings on iron and steel (including cast and</p>
<p>wrought iron, carbon steel, low alloyed steel and stainless steel). Black oxide coatings can be used to diminish</p>
<p>friction between sliding or bearing surfaces or for decorative purposes or to reduce light reflection. Such coatings,</p>
<p>with or without supplementary preservative treatment, may be used where a black surface is required. Only very</p>
<p>limited corrosion protection is obtained under mildly corrosive conditions even with preservative treatment.</p>
<p>This International Standard does not specify requirements for the condition, finish or surface roughness of the</p>
<p>substrate prior to black oxidizing.</p>
