Return to index: [Subject] [Thread] [Date] [Author]

ASTM A500 Gr B

[Subject Prev][Subject Next][Thread Prev][Thread Next]
I have a question for all you steel guys who are working on President's Day.

Our company specifies A500 Gr B "seamless" for the hollow structural
sections we typically use for elevator towers, canopies etc.  A contractor
has asked us what "seamless" means, i.e. is it extruded.  

We spoke with a local fabricator and they indicated that all they stock is
welded HSS sections and that seamless would be a mill order item of at least

The question: Is A500 Gr B available as a seamless product?  If so, what is
the cost impact and will it perform differently than the single welded seam
version commonly available?


Nicholas Blackburn, PE