×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

1950's steel

1950's steel

1950's steel

(OP)
I am working on at water tank that was constructed in the 1950's. There are no plans or specifications.  I need to find the Fy for the steel used.  (I know that A-36 was introduced in the 1960's) I found a older 1940's AISC that stated the tension stress could not exceed 20 ksi.  My question is: could I use the Ft of 20 ksi in my .66Fy calc?  (I collect old engineering manuals and I have a copy of the fifth edition. But it is a home and my wife got frustrated when I called and asked her to find the necessary information.) Any suggestions would be appreciated.  

RE: 1950's steel

20 ksi was the allowable tensile stress. The yield stress for steel for bridges and buildings for that era was 33 ksi.

RE: 1950's steel

Can you take a hardness reading of the steel, that should give you a ball park for the Tensile Strength.  The hard part is finding a good place to take the reading.  The last place I worked we had a nice hand held Brinell Tester.

Chris

RE: 1950's steel

(OP)
Thanks, I appreciate it.  

RE: 1950's steel

Tell your boss you need to drive home to get the info - kiss your wife or more if you get lucky - go back to work....

What is the problem here??

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources