JoeBaseplate
Structural
- May 31, 2011
- 204
What would have been the grade of TSs back in mid 60s and early 70s?
Tek-Tips is the largest IT community on the Internet today!
Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!
-
Congratulations JAE on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!
Grade of TSs in early mid 60s 1
- Thread starter JoeBaseplate
- Start date
- Status
- Thread starter
- #2
-
1
- #3
- Thread starter
- #4
msquared48
Structural
My AISC 6th Edition (Copyright 1967) shows on pages `1-73 to 1-75, in the notes at the bottom of the pages, Fy = 36 ksi.
They also mention on page 1-71 that "Structural tubing is available conforming to the physical and chemical properties of either ASTM A7 or A36 steel."
There is no mention of any grades of tubing at this point in time that I can see.
In the tube column tables on pages 3-48 through 3-56, they are all lisated as Fy = 36 ksi material.
Mike McCann
MMC Engineering
They also mention on page 1-71 that "Structural tubing is available conforming to the physical and chemical properties of either ASTM A7 or A36 steel."
There is no mention of any grades of tubing at this point in time that I can see.
In the tube column tables on pages 3-48 through 3-56, they are all lisated as Fy = 36 ksi material.
Mike McCann
MMC Engineering
msquared48
Structural
Looking back further, the 1956 AISC manual makes no reference whatsoever to any tube shapes, Fy, class, or anything else. Apparently they came into existence sometime after 1957 and before 1967.
Looking ahead to the 7th Edition (1970), the tube columns are called out as both Fy = 36 and Fy + 46 KSI material on paGES 3-41 through 3-56. Page 3-37 identifies the 36 ksi material as ASTM A501, and the 46 ksi material as A500 Grade B.
Kinda looks like you might be in the timeline of change and need an assay to determine the exact animal you have.
Mike McCann
MMC Engineering
Looking ahead to the 7th Edition (1970), the tube columns are called out as both Fy = 36 and Fy + 46 KSI material on paGES 3-41 through 3-56. Page 3-37 identifies the 36 ksi material as ASTM A501, and the 46 ksi material as A500 Grade B.
Kinda looks like you might be in the timeline of change and need an assay to determine the exact animal you have.
Mike McCann
MMC Engineering
msquared48
Structural
FYI, the nomenclature prior to the 1970 code was "Tube", and gthe "TS" was first mentioned in the 1970 AISC code (page 1-10), but probably in use for a short time before that.
In thinking further, the material you have is more than likely A-36 from what I can see here, considering the early to mid 60's timeframe.
The 6th AISC edition first came out in 1963, but the copy I have is from a 1967 copyright subsequent printing.
Mike McCann
MMC Engineering
In thinking further, the material you have is more than likely A-36 from what I can see here, considering the early to mid 60's timeframe.
The 6th AISC edition first came out in 1963, but the copy I have is from a 1967 copyright subsequent printing.
Mike McCann
MMC Engineering
Take Mike's advice. Mine was based on memory, which must not be too good. I'd just use 36ksi, although to throw further confusion on the issue, at one time cold formed tubing (A500) was also made in Grade A which was 33ksi. One other thing...if the wall thickness is greater than 1/2", it would be A501, 36 ksi.
- Thread starter
- #10
- Status
Similar threads
- Question
- Locked
- Question
