# RE: Details for a beam B 20 X 59

• To: seaint(--nospam--at)seaint.org
• Subject: RE: Details for a beam B 20 X 59
• From: "Sprague, Harold O." <SpragueHO(--nospam--at)bv.com>
• Date: Tue, 7 Mar 2000 15:26:44 -0600
```Arvind,

It is equivalent to nothing in the Green Book.  I am not aware of anything
on the internet to find these old beams.

Per Steel Construction, by AISC, December 1927.  p. 236.  20" Bethlehem
beams
D=20.00"
Wt per ft = 59.5 lb/ft
A = 17.47 in2
b (flange width) = 8.000 in
t (web thickness) = 0.375 in
Note: the flange is tapered
n (minimum flange thickness) = 0.485 in
m (maximum flange thickness) = 0.804 in
Ix = 1181.5 in4
Sx = 118.15 in3
rx = 8.22 in
Iy = 48.6 in4
Sy = 12.2 in3
ry =1.67 in

Per Steel Construction, by AISC, December1927.  p. 17.
A-9 steel
Tensile strength 55,000-65,000 psi
Yield point 0.5 tens. str.

Avoid welding to these beams.  It can be done, but only with great care.

Regards,
Harold Sprague

> -----Original Message-----
> From:	Arvind K. Bisarya [SMTP:arvind_bisarya(--nospam--at)mk.com]
> Sent:	Tuesday, March 07, 2000 2:26 PM
> To:	seaint(--nospam--at)seaint.org
> Subject:	Details  for  a  beam    B 20 X 59
>
>      During  a  review  of  an old  project,  I  came across  a
>     beam   designation     B 20 X 59.
>     Does  any  one  knows  what  it  is  equivalent  to  a  shape
>     in  green  book.   Where  can  I  find  the  properties  of
>     this  on  the  internet.   Any  and  all  help  will  be  really
>    appreciated.  Thanx  a  million  in  advance.
>
>     Arvind  Bisarya  ( arvind_bisarya(--nospam--at)mk.com )
>
>     314  -  539  -  0471  Phone
>     314  -  539  -  8321  Fax
>

```