No passwords, No popups, No cost, No AI:
we earn from 'affiliate link' purchases, making the site possible

Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ

finishing.com -- The Home Page of the Finishing Industry

  The authoritative public forum
  for Metal Finishing since 1989

-----

German Surface Finishes

Q. I'm trying to translate some German drawings and can't seem to find any correlations for German surface finishes. The numbers range from 1-4. How do they correspond to numbers used in the states (32, 63 etc.) Thank you for your time.

David Meade
- Kingsport, Tennessee, USE
2000

A. David:

Germany uses metric measurements. If I assume right, the 1-4 should be micrometers(µm). 1 microinch(µin) = 0.0254 micrometer(µm). 1-4 µm range = 39.37-157.48 µin. I hope this is useful. If I am assuming wrong, I sure someone will lets us both know. Good luck.

Bill Boatright
- Raleigh, North Carolina
2000

A. Hi David. Personally I think it's too risky for you to hazard a guess what "1-4" means. Bill is right that 1-4 microns corresponds to 39.37-157.48 microinch, but we don't know if it means Rz or Rms if it even means those microinch values. Good luck.

Regards,

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

Q. I HAVE A DRAWING THAT CALLS FOR A SURFACE FINISH OF Y. WHAT DOES THIS EQUATE TO IN ENGLISH SCALE?

Denny Koser
- Texas
March 13, 2014

Hi Deny. Please upload a pic of the symbol in context on the drawing and help may be available.

Regards,

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
March 2014

(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: