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Swedish Standard, SA 2.5 minimum

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I need to know the technical details about the following- Surface preparation - Mild steel part the surface needs to be prepared by sand blasting as per Swedish Standard , SA 2.5 minimum or better as per Swedish Standard , If it is possible then please inform about the surface finish value ( Ra, Rmax eg.) which can be achieved by the above mentioned process.

Please respond as early as possible.

Best Regards,

T.N.C. RANGANATHAM
SRIHARIKOTA, A.P., INDIA


September 3, 2009

Hi, T.N.C.. This is a Swedish Institute for Standards designation for "near white" blasted finish -- approximately equivalent to NACE No. 2/SSPC-SP10 [link is to spec at TechStreet], and ISO 8501-1 [link is to spec at TechStreet] WA.2.5

I believe it's actually "Sa.2.5", but I don't know is "Sa" is an abbreviation or acronym in Swedish. I also believe that it is a visual standard, rather than something you measure with a profilometer.

Please see letter 12526 for a more complete explanation. Good luck.

Regards,

pic of Ted Mooney Teds signature
Ted Mooney, P.E.
finishing.com
Brick, New Jersey


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