Specifying Sheet Steel Finish Quality
Specifying Sheet Steel Finish Quality
(OP)
Arg!
I've lost my PDF copies of some of my ASTM standards during relocation. NOW I'm learning how priceless they were!
Can any of you remind me of the 1B/2B/3B etc surface [quality] finishes for sheet steel fabrications? I've spent more time looking online than Thor Heyerdahl took crossing the Pacific on the Kon Tiki and can't find diddly squat!
Thank you!
Chris in the NC Piedmont





RE: Specifying Sheet Steel Finish Quality
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Delstar has a Table with grits & Ra values for the different mill finishes. As polished:
http://www.delstar.com/polishing.htm
Also, before & after electropolishing:
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RE: Specifying Sheet Steel Finish Quality
A 304 with a #4 has the same corrosion resistance as a 201 with a "synthetic" #4 ( i.e.rolled-on), but costs 10 to 15% less. Take that to the boss.
These finishes are used by the major appliance makers and restaurant equipment makers, as well as architectural hardware guys.
Michael McGuire
http://stainlesssteelforengineers.blogspot.com/
RE: Specifying Sheet Steel Finish Quality
Special Finishes for Stainless Steel,
one of the many free publications of the SSINA:
http://www.ssina.com/publications/index.html
RE: Specifying Sheet Steel Finish Quality
Is the 304 with #4 finish lower in cost than 201 with rolled-on/synthetic #4? Or is it the other way around?
RE: Specifying Sheet Steel Finish Quality
Michael McGuire
http://stainlesssteelforengineers.blogspot.com/
RE: Specifying Sheet Steel Finish Quality
Kenvlach - I visited the SS Information Center you suggested. what a great resource! I've already shared it with some engineering friends.
Thank you!
Chris in NC
RE: Specifying Sheet Steel Finish Quality
Available surface finishes willbe a function of alloy and gage. Not all of the combinations are available.
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Corrosion, every where, all the time.
Manage it or it will manage you.
http://www.trent-tube.com/contact/Tech_Assist.cfm
RE: Specifying Sheet Steel Finish Quality
This link will give you complete base and size extra prices by grade. Then add the nickel surcharge.
Michael McGuire
http://stainlesssteelforengineers.blogspot.com/