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

Related Articles


Old Channel Properties

Old Channel Properties

Old Channel Properties

I am looking for section properties on what is being called out as a channel (" [7x3.5 BSC-10 20.3# ") on a set of lattice tower plans. The plans are dated 1958.

Thanks for your efforts in advance.


RE: Old Channel Properties


I can't find it

RE: Old Channel Properties

according to an old carnegie steel manual i have that's a british standard section ship building channel.  from the designation you can probably figure out that it's 7" deep with a 3.5" wide flange and weighs 20.3 plf.  other properties are:

area of section = 5.9 in^2
web thickness = 0.400 in
strong axis I = 44.2 in^4, r = 2.74 in, s = 12.6 in^3
weak axis I = 6.7 in^4, r = 1.07 in, s = 2.8 in^3, y = 1.09 in

hope that helps.

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!


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close