you were shipped the wrong bolts.
there is a very very small plus/minus on diameter which would depend on thread grade but I can assure you the tolerance is nowhere near 1/8".
threaded fasteners are generally made to pretty precise tolerances, nut threads would certainly never fit otherwise.
the...
I'm just a lowly BSME (not a PHD or anything so I'm sure someone will find fault in my theory here) just using common sense I think you are seeing a thermal conductivity issue. I don't think this has anything to do with the welds exactly but rather with the fact that the weld creates a thicker...
this is the standard CE formula that I have seen used
C + Mn/6 + Cu/40 + Ni/20 + Cr/10 + Mo/50 + V/10
I've never seen Si included in there.
I believe the intent is just to account for trace ammounts of effective carbon present as result of the additional alloying elements. This is important to...
I have heard of using a salt water wash to accelerate the natural patina formation on weathering steels. Pre-fabricated bridge manufacturers typically employ this method strictly for aesthetic purposes to provide a uniform appearance on finished material prior to shipment. I am not aware of any...
Keep in mind commodity prices are not going to be indicative of mill or "finished" prices for rolled structural shapes which I assume your looking for by the way you worded your question..."different metals such as steels, Al etc for variety of shapes and sizes"
Even price trends in commoditiy...
embrittlement is a concern when galvanizing A490 bolts. A490 is meant to be used in a bare or painted condition.
A325, A307, F1554 etc can all be HDG no problem. If setting in concrete you are much better off with galvnanized bolts rahter than bare anyway.
I agree with alot of the responses here relating to stamping design-build work or stamping drawings which may be partially based on standard DOT details and partially based on site-specific design by contractor or fabricator. I completely agree with the statement about economy of items such as...
