Steel light poles from 1950s or 60s
Steel light poles from 1950s or 60s
(OP)
Trying to verify some old light pole towers for new, larger light fixtures. They are tapered round steel, not polygonal, with slip overlap splices and about 3/16" to 1/2" thick. With no original documentation available, wanted to know what like steel grade might have been used for these if they were built around 1950-1960.






RE: Steel light poles from 1950s or 60s
RE: Steel light poles from 1950s or 60s
In addition the pole not adjacent to any road. It is on the lawn spectator area of a large concert event center. So that has probably helped it condition-wise.
RE: Steel light poles from 1950s or 60s
RE: Steel light poles from 1950s or 60s
RE: Steel light poles from 1950s or 60s
Dik
RE: Steel light poles from 1950s or 60s
RE: Steel light poles from 1950s or 60s
RE: Steel light poles from 1950s or 60s
RE: Steel light poles from 1950s or 60s
RE: Steel light poles from 1950s or 60s
If I remember right, Grade A is something like 25,000 psi yield. I don't know if it was ever more popular or not.
This paper shows A36 coming out in 1960:
https://www.aisc.org/globalassets/modern-steel/ste...
I was thinking the structural tubular standards were all newer than the 1960's.