[TowerTalk] Malleable vs Forged Wire Rope Clips

[TexasRF--- via TowerTalk]

The current recommendations for terminating EHS steel guys are the  
Preformed Products Big Grips, BG2142 for 3/16EHS and BG2144 for 1/4EHS.
 
They have superior holding strength and take far less time to install  
compared to cable clamps. 
 
The cost for a Big Grip is less than the cost of three forged clamps so it  
is a win-win.
 
They are available at Texas Towers and other tower suppliers.
 
73,
Gerald Williamson K5GW
General Manager, Texas Towers
 
 
 
In a message dated 6/6/2014 10:59:24 A.M. Pacific Daylight Time,  
k4kyv at hotmail.com writes:

When I  erected my tower 30-plus years ago, the cable clamps sold with Rohn 
towers  were listed as 3/16 CCM, 1/4CCM, etc. In the current catalogue they 
are listed  as 3/16 CCF, 1/4 CCF etc. The ones listed in the older 
catalogue were called  'malleable', but the ones in the current catalogue are 
'forged'.

One  thing you do want to avoid in any case is the junk sold at hardware 
stores.  They are 'zinc-plated' and not galvanised. The layer of zinc coating 
is  minuscule, and the clips will rust in less than a year.

I wasn't sure  about the difference between malleable and forged, and found 
 this:

>>>>>>Well, I know that forged crosbys are  where it's at for rigging, and 
that malleable wire rope clips shouldn't be  used...

Malleable metal is cast metal and tends to be brittle. Take a  plumbing 
elbow and hit it with a hammer, it will break easily. Forged metal is  shaped 
by hammering or in this case, bend by hydralics. It is a much stronger  
product that will not break under load...

The main difference between  forged and cast (regardless of alloy being 
used) is that a forging starts as a  solid piece of metal, but a casting is 
metal that is melted and poured into a  mold...>>>>>>


http://www.controlbooth.com/threads/malleable-vs-forged-wire-rope-clips.2588
4/

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