can ASTM A992 be used in Channel?

By hogan

Date 04-16-2009 22:11

As far as I can tell

Attachment: c8x11_5_22412320.pdf (141k)

By swnorris (****)

Date 04-17-2009 13:38

David,

I see that you are QC. Are you asking because it shows up on a job spec.?

By Mikeqc1 (****)

Date 04-17-2009 14:37

i have come accross this b4 (i did look at hogans cert)
ON THIS SUBJECT everything ive seen is about wide flanges.
here is some rading 4 u

http://www2.arch.uiuc.edu/aamin/451/download/New_Steel.pdf

let us know what u find out
MDK

By Mikeqc1 (****)

Date 04-17-2009 14:57

Although the original ASTM A992-00 was for W-shapes only, the current A992-01 covers rolled steel, structural shapes for use in building framing, bridges, or for general structural purposes,".
ASTM A992-01 was expanded in scope to cover rolled structural steel shapes such as M, S, HP, channels and angles. However, a recent AISC survey verified that rolling mills do not plan to expand production of ASTM A992 beyond wide-flange shapes.

i CANNOT VERIFY THIS AS I DO NOT HAVR THE CURRENT ASTM BOOKS

By hogan

Date 04-17-2009 15:36

Mike,
I'm not sure if you had a chance to look at the other post dealing with this question. Below is some information that I came up with while briefly looking into this. The AISC info was from looking over AISC 13th edition, table 1-1. I was just looking at the items described as shapes. Not the most technical way, but I could not find a definition. The A6 info came from A6-08 Terminology 3.1.2 Shapes (3.1.2.1 to 3.1.2.9)
I also have a copy of A992-98 that lists W shapes only. And as you have mentioned in 2000 lists only W shapes. The first edition I see the change is in the 2002 edition of A992. This lists "rolled steel shapes for use in building or bridges, or general structural purpose", the same as the current edition. It is odd that it references bridges, but bridge spec's do not use ASTM's only AASHTO spec's (another useless observation).

The spec (A992-06) is titled Standard specification for structural steel shapes.
AISC references W,HP, C, MC, WT, MT, ST, 2C, 2MC shapes (angle is not referenced as a shape)
A6 references W, HP, S, M, C, MC, and L shapes (L being angle)

By HgTX

Date 05-05-2009 18:34

To pick a nit, bridges do use ASTM specs, but they use ASTM A 709 (or the equivalent AASHTO M 270). A 709 Gr. 50S is the equivalent to A 992.

Hg