stainless bolt properties
stainless bolt properties
(OP)
For some reason we need to design a hanger-type support using stainless steel bolts. However, finding an information regarding stainless steel bolts (rods) tensile strength proved to be a problem. Could anybody provide us with some info or direct to a good source?
Thank you.
Thank you.





RE: stainless bolt properties
RE: stainless bolt properties
Start with the following link:
http://mdmetric.com/fastindx/t28u.pdf
I suggest you follow Metengr's comment regarding grade selection.
Also, check the Industrial Fasteners Institute (IFI) manual Inch Fastener Standards There is a section on Corrosion medium vs. materials and plenty of mech. data. Also see ASTM F593.
SST also has a higher thermal expansion that plain carbon steel. You may need to consider that. Keep in mind that stainless fasteners tend to gall. If this is a joint that will be frequently maintained, tightened, etc. anti-seize compound is recommended.
Batman 2
RE: stainless bolt properties
Thanks for your reply.
RE: stainless bolt properties
Mike Halloran
NOT speaking for
DeAngelo Marine Exhaust Inc.
Ft. Lauderdale, FL, USA
RE: stainless bolt properties
Make sure the anti-seize compound is compatible for use on austenitic stainless steel fasteners.
RE: stainless bolt properties
If this application is safety related load bearing, beware of counterfit bolts and bolts from sources that have obfuscated paperwork or paperwork promised but never delivered. This is particularly annoying if there is a failure later on.
RE: stainless bolt properties
There are two popular ASTM specs on stainless steel bolts, where parts are readily available. ASTM A193 and ASTM F593. http://www.ssina.com/download_a_file/fasteners.pdf is a free dowloand that will give you basic info on both, including tensile.
I am not familiar with railroad bridge construction, but on a road bridge, where road salt could be present, the use of 304 stainless should be tested by a corrosion engineer and likely, discouraged. Salt and stainless (chloride) don't play well together.
As stated by Yarsky, stainless bolts are not covered by the new Fastener Law. Request good documentation up front and while I can't imagine anyone would be stupid enough to still be providing counterfeit stainless bolts, here is a photo on some to be on the look out for
https://sbms.pnl.gov/standard/2t/2t03e010.htm. Any ASTM certified stainless bolt with the two dash marks on it (as seen on forementioned page) is bogus. The two dash marks reflect the bolts was originally made as 18-8 commercial only.