Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
-----
What is 'Black Iron' as in NYC ceiling suspension system?
January 31, 2008
What is 'Black Iron' as in that required for NYC ceiling suspension system?
I understand New York City requires 1/4" diameter steel rods and 1
1/2" cold rolled steel channels to support ceilings...
But its referred to as 'black iron'.
What do they mean? Is that a particular type of steel?
Is it finished in a particular manner?
Would specifying galvanized rods and channels be same material?
Thanks in advance for any input you can offer.
Architect/Specifier - Morganville, New Jersey
Black iron has generally been used to refer to hot rolled steel (HRS).
Gene Packman- Great Neck, New York
February 1, 2008
The full explanation is in NYC Building Code Reference Standard 5, and specifically in RS 5-16.
Michael Calvi P.E.- Yonkers, New York
December 2, 2009
(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)
Q, A, or Comment on THIS thread -or- Start a NEW Thread
Q, A, or Comment on THIS thread -or- Start a NEW Thread