Hardite info?

Home| Search | About
User Password
Register Now! Lost Password?

Model Engineering in UK - Model engineering, metal crafts in UK 

Bookmark this page:  YahooMyWeb Yahoo!  Google Google  Windows Live Favorites Windows Live  del.icio.us del.icio.us  digg digg  Add to Netscape Netscape
Subject Author Date
Hardite info? Jordan 01-08-2008
Posted by Jordan on January 8, 2008, 9:01 pm
Please log in for more thread options
 I found a half-tin of Hardite case hardening powder.
The tin's outer is partly rusted, and any instructions that might have
been on it are not readable.
Is there some place where I can find instructions on how to use it?

Jordan

Posted by MikeH_QB on January 9, 2008, 7:08 am
Please log in for more thread options
> I found a half-tin of Hardite case hardening powder.
> The tin's outer is partly rusted, and any instructions that might have
> been on it are not readable.
> Is there some place where I can find instructions on how to use it?
>
> Jordan

I would imagine its much the same as any other CH powder (like
'casenit'). Heat item to cherry red and dip. Repeat as often as needed
for required 'depth' of hardness.
Don't know if stuff like this 'goes off' though - if its very old may
not be 100% effective. Is there a chemist in the group?
hth
Mike

Posted by Jordan on January 9, 2008, 5:49 pm
Please log in for more thread options

>
> I would imagine its much the same as any other CH powder (like
> 'casenit'). Heat item to cherry red and dip. Repeat as often as needed
> for required 'depth' of hardness.
> Don't know if stuff like this 'goes off' though - if its very old may
> not be 100% effective. Is there a chemist in the group?
> hth
> Mike

Yes, I think it's equivalent to Casenit.
That sounds simple enough.

Thanks
Jordan

Posted by on January 11, 2008, 4:03 am
Please log in for more thread options
>

> I would imagine its much the same as any other CH powder (like
> 'casenit'). Heat item to cherry red and dip. Repeat as often as needed
> for required 'depth' of hardness.
> Don't know if stuff like this 'goes off' though - if its very old may
> not be 100% effective. Is there a chemist in the group?
> hth
> Mike

I've never understood how this can work. Surely the slow cooling in
the powder can't give a really hard surface? I've always reheated and
quenched.
Russell.

Posted by ravensworth2674 on January 11, 2008, 6:28 am
Please log in for more thread options
History suggests that diamonds which are pure carbon came out of the
earth and cooled slowly.In case hardening, you are introducing carbon
in higher percentages than in heat treatable carbon steel.

If you follow the art of ancient swordmaking- look up Shotley Bridge
in County Durham- you will find that the German finest swords were
made by folding carbon into iron rather like making Swiss Rolls.the
steel was so good that swords could be coiled into gentlemens' top
hats.
My father- who incidentally did his blacksmiths apprenticeship in the
next village, used parings from horses hooves for case hardening!

Yes?

Similar ThreadsPosted
Looking for info... September 26, 2006, 1:00 pm

Contact Us | Privacy Policy

XML SitemapXML Sitemap