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RE: New Channel Shape

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It seems that this channel is not in fact wide enough for a full weld all around a   1 1/2" diameter pipe post (unless it is a weld smaller than 1/8").  By my calculations a 3/16" weld is required at the base of a handrail post.  It is a great idea though.  Most fabricators do not like using the C12x20.7 that we specify for stringers.  Perhaps they could increase the width to 2 3/8" to allow for the 1/4" fillet weld and a 1 1/2" diameter pipe.

Adam Vakiener, PE

From: CanitzCF(--nospam--at)aol.com
Subject: New Channel Shape
To: seaint(--nospam--at)seaint.org


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Below is a message that I received regarding a new channel shape apparently intended for steel stairs stringers. Any thoughts or comments?

Thanks,
Charlie Canitz, PE
Annapolis, MD



From: White, Fred Sent: Monday, May 02, 2005 5:30 PM
To: Sales
Cc: Benson, Sally; Hammond, Ron
Subject: New MC Stringer Channel Produced by Gerdau Ameristeel


Gerdau has introduced a new stringer channel MC 12 x 14.3.

The flange is 2 1/8" allowing a railing post to be fully welded all around.
Allows for a 3/4" rod in through the flanges.
Fills the gap between the MC 12 x 10.6 and C12 x 20.7-uses less stair opening than heavier channel.

Let me know if you have any requirements. The size passed the trial rolling and I can inquire regarding the rolling and stocking schedule if you have interest.

Fred G. White fred.white(--nospam--at)triadmetals.org 215-784-0240 215-784-0132(Fax)

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