| Author |
Message |
Marc C Chavez
Senior Member
Username: mchavez
Post Number: 389
Registered: 07-2002
| | Posted on Tuesday, September 07, 2010 - 11:46 am: |    |
I need some help with specing the steel, I have the finish the way I want it. BUT now I'm getting steel with inclusions and other defects. the ASTM is not to helpfull - and I can;t always get a craft level worker to do it?
Any suggestions? |
(Unregistered Guest)
Unregistered guest
| | Posted on Tuesday, September 07, 2010 - 12:51 pm: | |
AISC has a fairly thorough brochure for specifying exposed steel. It is a free download from their website. (I got to it by Googling “AESS steel”.) The brochure includes a spec. It recommends a Sample board that indicates exactly how you want the steel to look. It also has a chart at the back that indicates when you would want to include certain steel enhancements and the percentage rise in cost if you ask for them. I could not see where the brochure addressed inclusions in the steel.
AISC.org has other free publications and it welcomes questions about steel. They may be the best resource for your questions.
(This is Richard Baxter in Salt Lake City btw. I don't know why the website isn't accepting my username and password anymore.) |
(Unregistered Guest)
Unregistered guest
| | Posted on Tuesday, September 07, 2010 - 01:33 pm: | |
Sounds as if you either are not painting the steel or are specifying a clear finish. If this is the case the steel industry is not really set up to give you what you want.
Suggest that you find a fabricator who is willing to make the effort and work with him. This is not something to be done on a tight budget job. If this steel is part of the structural frame, and not some isolated architectural elements, that you may not be able to get what you want. |
(Unregistered Guest)
Unregistered guest
| | Posted on Wednesday, September 08, 2010 - 01:58 pm: | |
Marc,
I'm glad you're on board with ZGF now, since Anne has moved on, to keep us up-to-date on the "interesting" finishes you guys love so much!
John |
Anne Whitacre, FCSI CCS
Senior Member
Username: awhitacre
Post Number: 1004
Registered: 07-2002
| | Posted on Wednesday, September 08, 2010 - 04:53 pm: | |
yes, back when I was with ZGF, we specified blued steel but never got it -- cost. The jobs must have better budgets now. |
(Unregistered Guest)
Unregistered guest
| | Posted on Thursday, September 09, 2010 - 09:58 am: | |
There is another thread on blued steel finishing, but I think what Marc may be looking for can, indeed, be found in a specification on "Architecturally Exposed Structural Steel." This section does set a higher standard for the material surface characteristics, but it particularly addresses welded and even bolted connections. |
Anne Whitacre, FCSI CCS
Senior Member
Username: awhitacre
Post Number: 1006
Registered: 07-2002
| | Posted on Thursday, September 09, 2010 - 02:03 pm: | |
AESS generally discusses higher fabrication tolerances (straightness, flatness, etc) but not the actual visual quality of the steel itself. Most AESS is not left exposed or with a clear finish, so the actual fineness of the surface generally is not an issue. when I've done blued handrails, its not structural steel, but we also wanted the "rawness" of the steel to come through. Marc's firm tends to want their functional materials to look decorative. |
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