ISO 6621-3:2021

Internal combustion engines — Piston rings — Part 3: Material specifications

This document classifies materials intended for the manufacture of piston rings, based on their mechanical properties and the stresses the materials are capable of withstanding.

This document is applicable to piston rings for reciprocating internal combustion engines up to and including those of 200?mm in diameter. It is also applicable to piston rings of compressors working under similar conditions.

Edition	2021
Standard Part No	3
Published Date	2021
Published By	International Standardization Organisation
Page Count	4