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RE: Stainless Steel Nuts

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In table 2 of the A193 spec.  The Class 1's vary from 192 HB to 271 HB.  The
Class 2's are 321 HB.  

I don't know if there is a direct relationship between hardness and galling.
It has just been my experience that the harder steels gall less.

Regards,
Harold O. Sprague

> -----Original Message-----
> From:	Nels Roselund, SE [SMTP:njineer(--nospam--at)att.net]
> Sent:	Wednesday, November 13, 2002 10:29 AM
> To:	seaint(--nospam--at)seaint.org
> Subject:	Re: Stainless Steel Nuts
> 
> Harold,
> 
> Thanks for the recommendations.
> 
> I have a partial copy of ASTM A 193.  Do you know where I can find
> definitions of the hardness terms [*** HB, **HRB, etc]?
> 
> Is there a direct correlation between hardness and resistance to seizing
> or
> galling?
> 
> I've found a source of Neolube -- thanks.
> 
> Nels
> 
> Nels Roselund
> Structural Engineer
> South San Gabriel, CA
> njineer(--nospam--at)att.net
> 

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