Aloha, fun & authoritative answers -- no cost, no passwords, no popups
(as an eBay Partner & Amazon Affiliate we earn from qualifying purchases)

Metal finishing Q&As since 1989

-----

What is N7 in metric standard

Please give me a list of conversion charts b/n Metric, Inch and other standards for surface roughness measurements 1. In a drawing, Surface finish asked was N7 on Outer dia. and N8 at Inner diameter. If it is converted into Ra or RMS what it will be. What is the relation between N... standards and Metric and Inches . Please give the details at earliest to proceed my works.

Thanks and best regards

Dinesh [last name deleted for privacy by Editor]
student - Bangalore, Karnataka, India
2004

See letter 7560.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2004

(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories: