[TheForge] good steel

[David E. Smucker]

Bob,

100 percent of the jackhammer bits that we used in Alcoa were made of S5 
because we either made our own, or that is what we spec'd.  Others I know 
have used S7.  (S5 is not very common today, most S type out there is S7) 
This may well be a case of a large end user knowing better what gives the 
best service for the dollar that an equipment seller that wants to keep 
selling new jackhammer bits.  Alcoa uses 1000's of jackhammer bits in the 
relining of melting and holding furnaces.

I an not by the way questioning that a lot of jackhammer bits are 1045, just 
that my experience was with S type.

Dave Smucker
----- Original Message ----- 
From: <schade at acegroup.cc>
To: "Sponsored by ABANA" <theforge at mailman.qth.net>
Sent: Monday, January 29, 2007 1:41 PM
Subject: [TheForge] good steel


A few days or maybe a week ago someone made a comment about "jackhammer
points" being "S" series steel. I remembered talking to a Brunner & Lay
rep years ago and he told me that all their pavement breakers (moil
points) were made of 1045. I called B&L to find out if that was still
the case and just got this reply....

> Brunner & Lay points and chisels are made from a modified 1045 steel made 
> specifically for breaking concrete and rock.
>  Thanks,
>  Bill Ussery
>  Product manager

Still most excellent stuff for making almost any kind of hammer, swage,
punch, hardy etc. But they are not "S" series steel. Could be that some
others are "S" but if plain 1045 will work for breaking concrete and
rock.....

Bob

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