×
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

Mech Prop of old forged steel shaft, yr 1912 USA

Mech Prop of old forged steel shaft, yr 1912 USA

Mech Prop of old forged steel shaft, yr 1912 USA

(OP)
Does anyone know the approximate mechanical properties of forged steel operating machinery shafts around the year 1912 from Strobel Steel Construcion Co., Chicago Ill? That is all the information known on the technical drawing.

RE: Mech Prop of old forged steel shaft, yr 1912 USA

Possibly you could go to a library (university with engineering program library)  and they hopefully might have some old machinery's handbooks.  Most likely such a book would have forged shaft properties.  

-John

RE: Mech Prop of old forged steel shaft, yr 1912 USA

I have in my possession a copy of AISC's "Iron and Steel Beams 1873 to 1952".  In this source it lists the year, manufacturer, and allowable unit stress for wrought iron and steels manufactured in the early 1900's.  There were approximately 23 iron and steel producers in the US prior to 1912.

I recommend that you contact the American Institute of Steel Construction to obtain one of these useful sourcebooks.

Allowable unit tensile stresses for steels produced in the early 1900's were generally limited to 16000 psi for building structures, and 12500 psi for bridges or towers in which cyclic loading or moving loads occurred.

Steel tensile strength produced just prior to 1912 generally ranged from 50 to 60 ksi with yield strength approximately 1/2 T.S.   These steels should have been produced under ASTM A7 or ASTM A9.

Considering the time-frame in which your steel was produced, I would seek the advice of someone at AISC to see if they can make a recommendation with regard to what allowable stresses should be used.   In today's steel design practice, steel shear stress is generally limited to 30 percent of yield for non-cyclic loading.

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