Armco Steel Corp Steel Joists

[TWChar]

Want to re-purpose a warehose with 40 foot spans of steel joist with the following tag: ARMCO STEEL CORP 282 24H8 J6
How do I interpret this tag and find the information on the age and load capacity of these joists? I went to

http://www.slideruleera.net/

and found information on some Armco joists - but not anything that made sense (to me) with this joist tag.

 

[phamENG]

What's your role? Are you the structural engineer doing a feasibility study, the owner, or somebody else? The answer to that question will dictate the way your question is answered...

 

[JedClampett]

If you are equipped to interpret this, call or write the Steel Joint Institute (SJI). I suspect that the tag number is enough to get the capacity of the joist.
If you're not a structural engineer, you probably need one.