# RE: Metric Steel Shapes

• To: seaint(--nospam--at)seaint.org
• Subject: RE: Metric Steel Shapes
• From: Scott E Maxwell <smaxwell(--nospam--at)engin.umich.edu>
• Date: Wed, 12 Jul 2000 16:26:47 -0400 (EDT)
```My understanding has always been that "pounds" is a force (weight)
measurement and its metric equivalent is Newtons.  The mass units for the
Imperial (English) system is "slugs".

Scott Maxwell, PE, SE

On Wed, 12 Jul 2000, Peter McCormack wrote:

> Why change mass to force (kg to N) to convert back to
> mass??????
>
> Unless I missed something all these years, lb/ft of the beam is
> mass per foot length...not pound force per foot......
>
> (I am really starting to miss the metric system.....sob...sob...)
>
> Peter McCormack
>
> From:           	"Connor, John A NWK" <John.A.Connor(--nospam--at)nwk02.usace.army.mil>
> To:             	"'seaint(--nospam--at)seaint.org'" <seaint(--nospam--at)seaint.org>
> Subject:        	RE: Metric Steel Shapes
> Date sent:      	Wed, 12 Jul 2000 09:28:49 -0700
> Organization:   	http://www.seaint.org
>
> > Reference: AISC, LRFD, Metric, Vol I
> > S100x11.5=S4x7.7
> >
> > multiply kg/m (mass/length) by gravity (9.81 m/s^2)
> > this changes kg/m (mass/length) to N/m (force/length)
> > covert N/m (force/length) to lbf/ft (force/length) by multiplying by 1/14.59
> > (conversion table back of AISC manual)
> > 11.5 * 9.81*1/14.59=7.7
> >
> > Alcohol and Math do not mix.
> > Don't Drink and Derive.  :)
> >
> > Cheers,
> > JC, PE
> >
> > -----Original Message-----
> > From: Bill Polhemus [mailto:bpolhem(--nospam--at)swbell.net]
> > Sent: Wednesday, July 12, 2000 10:10 AM
> > To: seaint(--nospam--at)seaint.org
> > Subject: Re: Metric Steel Shapes
> >
> >
> > 1) Where did the "11" come from? What does it signify?
> >
> > 2) Where did you find the information?
> >
> > Thanks.
> >
> > > "Connor, John A NWK" wrote:
> > >
> > > S100x11 (metric) is equivalent to S4x7.7 (Imperial).
> >
>
>
>
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