Point of interested. When calling up ASTM grades etc in response
to "International" requests, it would be handy to specify metric
i.e A588 is equivalent to Fy = 290 MPa, Fu = 435 MPa.
>From my intepretation of the original post, the steel in the existing
structures may be Fy = 250 - 260 Mpa.
It helps when cross checking non-ASTM steels, as is the case in
As an Aussie working in the US, I have access to the relevant
ASTM data, others may not.
From: "E.B.Davison, P.Eng." <rndeng(--nospam--at)planet.eon.net>
To: "SEAINT" <seaint(--nospam--at)seaint.org>
Subject: Steel Structures in very Cold Climates
Date sent: Wed, 12 Jan 2000 16:01:51 -0700
Send reply to: seaint(--nospam--at)seaint.org
> My practice is to define the steel grade so brittle fracture can be avoided then use conventional design methods.
> Main Structural Members: ASTM A573, A588, A633 or CSA G40.21 44T and 50T
> Cold Form sections to ASTM A607 or A570
> HSS Sections to ASTM A500 (modified for impacts) or CSA G40.21, 50T and 50A
> Foundations: ASTM A252 Grade 3 modified for impacts.
> Also avoid executing critical welded connections in the field , use bolted connection with Structural bolts to ASTM A320.
> B.Davison, P.Eng.
> RND Engineering Ltd.
> Edmonton, Alberta