Metric tee callout
Metric tee callout
(OP)
Does anyone know how to call out metric tees on a drawing? We're designing a pipe rack that will be fabricated in Thailand or somewhere near and using tee shapes that meet JIS G 3192 for bracing.
I have a catalog from JFE Steel Corp. They have what we want to use listed as "125x125" under nominal size. So how would I show that on a drawing?
What document dictates this and where can I get it?
I have a catalog from JFE Steel Corp. They have what we want to use listed as "125x125" under nominal size. So how would I show that on a drawing?
What document dictates this and where can I get it?






RE: Metric tee callout
width of section (mm) x depth of section (mm) x mass per meter (kg / m)
Not sure if there is a prefix like with AISC.
Hope this helps.
Tim
RE: Metric tee callout
RE: Metric tee callout
I suspect I might be contradicted, but the rest of the world seems to use section weight, so you could do that also, even if the call off is now getting very long.
RE: Metric tee callout
WT125 x 29 (or whatever the actual weight is in kg). Weight determines the depth of the T.
Good idea to call out the actual size. I prefer that. A quick call to the fabricators and they'll tell you what they'll use. So long as they cut the right material.
Robert Mote
www.motagg.com
RE: Metric tee callout
This is constant frustration I have with doing work that will be fabricated overseas (outside the U.S.) The client is only too happy to tell us not use U.S. customary units but then they give us very little guidance on naming conventions, material availability, etc. I don't think they realize their are different standards in different countries as you can see by the replies here. Australia calls it one thing, Canada another though both use metric. I think they think, "Oh, it's metric, so it's simple." While pba did give me an answer for JIS (Japanese) sections, I infer that there really isn't a standard way to call them out.
Anyway, keeps those cards and letters coming. Thanks for the replies so far.
RE: Metric tee callout
RE: Metric tee callout
This is a standard way of desiginating a tee made from a W-shape as prescribed by AISC. Calling it out any other way is wrong.
Maybe I'm asking the question the wrong way. Since I'm using JIS sections, let's talk about Japan. Do they have such a system in Japan? Is there a body analagous to AISC that prescribes a uniform way to call out sections so everybody is on the same page or does everybody just do their own thing?
RE: Metric tee callout
On the site I suggested, the nomenclature is as follows, for example:
T 75x150x7x10
75 = height
150 = width
7 = web thickness
10 = flange thickness
Since this is a Japanese site, I assume this is the way they do it, but I can't be sure.