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Surface finish Symbols

Hi ! Can anyone help me getting "Surface Texture Symbols"(specially DIN stds.) ? Thank you.

Umang A Chavadia
Larsen &Toubro Limited Surat, Gujarat (India)
1999

Could you please provide me a full explanation of the iso standard of surface finish using the Ra, Rma and Rz symbols?

Thanks.

Amos Porat
-Haifa, Israel
2001

I have an SOI A-1 surface finish called out on a drawing and don't know what that corresponds to or how to measure it. Can anyone help?

Randy Kelch
- Ann Arbor, Michigan
2002

Go to

http://www.predev.coml/smg/specification.htm

This will give you full explanation.

If not try searching Google for "Surface Finish Symbols"

Hope this helps

R

Ray Taylor
- Spain
2006

Q. I would like to know the following surface finish symbol

Ra 0.2√ ED

The above symbol is mentioned on one of the Engineering drawing.

Please help how to read.

Krishnam Raju
- Hyderabad-India
December 10, 2012

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