This is an old historic shape. You can use the AISC database at the following link to look it up:
I could not find a CB150 but a CB151 was noted - it is a wide flange of 15 inches deep.
Hope this helps.
- Ashwin
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Aswin Ranga Swamy, P.E.
Los Angeles, California
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Aswin Ranga Swamy, P.E.
Los Angeles, California
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----- Original Message -----From: j.n.sigalasSent: Friday, April 20, 2007 2:12 PMfellow list memberslooking in the drawings of an old r/r bridge I saw some steel membersmarked as CB150 without any other info.any ideas on what this mark means?regardsj.n.sigalas