All CM Ring Type Joints are manufactured from fully traceable materials and are supplied to Nace specifications upon request.

Each Ring Type Joint is identified by low stress stamping with style,ring number,API license number,material reference,Profduct specification

Level,a unique CM material identification number,and month and year of manufacture.Such fullo and comprehensive traceability,from material source with mill certification to final

Supply,is an essential ingredient in the company's strict quality assurance procedures and exeeds those demanded by the highest API 6A PSL-4.

 

MATERAILS

 

The gasket material should be selected to suit the service conditions.It is always recommended that the gasket material be softer than the mating flanges.The more popular Ring Type Joint materials,with the recommended

Maximum hardness and identification as specified in API 6A,are shown in the table below.

 

For more highly specialized applications,Ring Type Joints can be machined from DUPLEX steels and other exotic materials such as Monel,Inconel,Incoloy,and Hastelloy.The Technical Department is available to advise on

Other material.