No popups, no spam.
Folks helping folks with
respect.  You'll like it. -- The Home Page of the Finishing Industry
  HomeFAQsBooksHelpWanted Mar. '16AdvertiseContactForum Letter 28014

The Hotline: Serious Education ... plus the most fun you can have in metal finishing. Ted Mooney, Webmaster

Surface Finish in Japanese Standards JIS


Q. Where can I find explanation and symbols for surface finish in JIS.



Q. Where can I find symbol and conversion information regarding JIS surface finish requirements? I'm referring to the "upside triangle" symbols used by most Japanese manufacturers. I need to know what the symbols mean, what numerical value is associated with them, and how to convert them to Ra or Rma.

Rick Spellman
- Mason, Ohio, US

August 7, 2014

Q. What is the RMS or Ra smoothness conversion for Japanese 12.5a and 2.2?

Mark Otis
steel - Kingman, Arizona, USA

ADD a Q or A to THIS thread START a NEW THREADView This Week's HOT TOPICS

Disclaimer: It is not possible to 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; some names may be fictitious and some recommendations may be deliberately harmful.

  If you need a product/service, please check these Directories:

JobshopsCapital Equip. & Install'nChemicals & Consumables Consult'g, Train'g, SoftwareEnvironmental ComplianceTesting Svcs. & DevicesUsed & Surplus

©1995-2016     -    Privacy    -    Search
How Google uses data when you visit this site.