Need a book? Engineering books recommendations...
Structural Steel Properties - ASTM A 913 vs. A 992[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: SEAINT List Server <seaint(--nospam--at)seaint.org>
- Subject: Structural Steel Properties - ASTM A 913 vs. A 992
- From: "Stamper, James H." <JStamper(--nospam--at)heery.com>
- Date: Mon, 13 Dec 1999 00:08:45 -0500
Gerard, Your original question asked for the material properties of the "new structural steel A913 (Grades 50 & 65)." Heath Mitchell, below, provided the requested minimum yield and tensile strengths for Grades 50 and 65 of ASTM A 913/A 913M - 97, "Standard Specification for High-Strength Low-Alloy Steel Shapes of Structural Quality, Produced by Quenching and Self-Tempering Process (QST)", but you may not be aware that ASTM A 913/A 913M covers a total of four grades of material. They are Grades 50 , 60 , 65  and 70 . QST material isn't really new, although the ASTM A 913/A 913M - 97 specification is relatively recent. I suspect it replaced a previous ASTM specification(s) for QST, but I don't really know because I never use the QST material. Because of the two grades you asked about, I wonder if you didn't actually mean to ask about the properties for Grades 50 and 65 under the new, and more commonly used, ASTM A 992/A 992M - 98, "Standard Specification for Steel for Structural Shapes for Use in Building Framing"? Does anyone know, or want to discuss, the advantages or disadvantages of ASTM A 913 material versus ASTM A 992? James H. Stamper, PE (Jim) Senior Structural Engineer Heery International, Inc. Atlanta, Georgia (E-Mail: jstamper(--nospam--at)heery.com) -------------------------------------------------------------------------- From: Heath Mitchell <mitchell(--nospam--at)aiscmail.com> To: "'seaint(--nospam--at)seaint.org'" <seaint(--nospam--at)seaint.org> Subject: New Structural Steel Grade 50 has a minimum yield of 50 ksi and a minimum tensile strength of 65 ksi. Grade 65 has a minimum yield of 65 ksi and a minimum tensile strength of 80 ksi. As Bart Needham pointed out, it is a high-strength low-alloy quenched and self-tempered steel (Just in case you needed to know that). Heath -----Original Message----- From: Gerard Madden [SMTP:GerardM(--nospam--at)CRJARCH.com] Sent: Thursday, December 09, 1999 5:06 PM To: 'seaint(--nospam--at)seaint.org' Subject: New Structural Steel Does anybody have the properties of the new structural steel A913 (Grades 50 & 65)? Basically, what I am looking for are the Fy's (probably 50 & 65 ksi, respectively) and Fu's (tensile strength). I have been unable to get any info from my web searches. On a side note, I was taught in Grad school that I should always consider A36 to have an Fy=50 ksi, since mills today produce mostly dual spec steel. This recommendation was brought up in an EBF lecture. Does anyone think it is appropriate to always use A36 w/ Fy=50 ksi in all NEW construction for any application (even angles and channels)? TIA (THANKS IN ADVANCE?) P.S.: LRFD RULES!!! Gerard Madden, PE Civil Engineer, Associate CRJ Associates, Inc. email: gerardm(--nospam--at)crjarch.com tel: 650.324.0691 fax: 650.324.0927 web: www.crjarch.com
- Prev by Subject: RE: Structural Steel Properties
- Next by Subject: Submitting Spreadsheets, Mathcad to SEAINT and SEAOC for general use.
- Previous by thread: Re: "Layered" wood beams with interlayer slip
- Next by thread: Structural Steel Properties