<p>This part of ISO 6621 classifies materials intended for the manufacture of piston rings, based on their mechanical</p>
<p>properties and the stresses the materials are capable of withstanding.</p>
<p>This part of ISO 6621 is applicable to piston rings for reciprocating internal combustion engines up to and including</p>
<p>those of 200 mm in diameter. It is also applicable to piston rings of compressors working under similar conditions.</p>
Registration number (WIID)
26893
Scope
<p>This part of ISO 6621 classifies materials intended for the manufacture of piston rings, based on their mechanical</p>
<p>properties and the stresses the materials are capable of withstanding.</p>
<p>This part of ISO 6621 is applicable to piston rings for reciprocating internal combustion engines up to and including</p>
<p>those of 200 mm in diameter. It is also applicable to piston rings of compressors working under similar conditions.</p>