ISO 6621-3:2000
ISO 6621-3:2000


This part of ISO 6621 classifies materials intended for the manufacture of piston rings, based on their mechanical

properties and the stresses the materials are capable of withstanding.

This part of ISO 6621 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.

General information 

  •  :  Withdrawn
     : 2000-09
  •  : 2
     : 3
  •  : ISO/TC 22/SC 34 Propulsion, powertrain and powertrain fluids
  •  :
    43.060.10 Engine block and internal components

Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)

Keep up to date with ISO

Sign up to our newsletter for the latest news, views and product information.