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[SEAOC] Stainless Steel[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: seaoc <seaoc(--nospam--at)power.net>
- Subject: [SEAOC] Stainless Steel
- From: "Sprague, Harold O." <SpragueHO(--nospam--at)bv.com>
- Date: Wed, 13 Nov 96 11:52:00 PST
- Encoding: 41 TEXT
Jeff, There are several resources for stainless steel design and fabrication: 1. Stainless Steel of North America 800-982-0355, also on the Internet. 2. Nickel Development Institute 416-362-8850 3. AISI has a book on fabricating stainless steel 4. International Nickel Company, New York, NY 5. Rolled Alloys 800-521-0332 Start with Stainless Steel of North America. They have a large listing of publications that are quite helpful and free. Most likely you will use a type 304 or 316. If there are chlorides or other aggressive chemicals, use the 316. Keep in mind that you can go all the way to Carpenter 20 if you need the ultimate in corrosion protection (Carpenter 20 is used to pipe sulfuric acid), but with each increase in type, there is a huge increase in cost. List the ASTM designation and the AISI designation. The ASTM designation will list the minimum mechanical properties (important to us structural engineers) as well as the chemical properties (important for chemical resistance). Check with the local steel supply houses for which is the common available ASTM designation. Keep in mind that the ASTM designation will vary with the shape of the material (i.e. flats, plate, sheet, round, etc.). For fasteners, consider ASTM A193, and designate the type depending on corrosion resistance and strength required. Specify a graphite lubricant with an alcohol vehicle similar to Neolube to prevent galling which is a problem with stainless steel fasteners. Do not allow reuse unless the bolts are inspected. If you need a tensioned bolt, you will have to write your own spec. A325 tensioning rules will not apply, because stainless steels are generally not as strong as high strength bolts. I hope you find this information useful. Feel free to contact me if there are any questions. Regards, Harold O. Sprague Black & Veatch spragueho(--nospam--at)bv.com ...
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