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Posted by Andrew Molinaro on October 27, 2006, 7:01 pm
Please log in for more thread options For what it's worth.....the annealing chart is excellent except for one
point I must disagree with. Under iron the descriptiojn says .25 or less
"Mild steel" cannot be fire hardened. I beg to differ. I use mild steel
for most decorative forgings and believe me it can harden.
My first job as a professional smithwas back in 1995. I was told to
make 260 leaves for a railing. I proudly spent the first day quenching each
leaf after cutting half way through with a hardie. You see they break off
better whan cold. Well, that evening my supervisor told me to cold bend the
"stems" to fit into the railing. Yup, I had hardened every freakin one of
those leaves (about 40 for the days work...I have gotten faster:) ). I then
had to anneal every one. They would break rather than move.
I hope this reduces potential frustration in your lives.
Andrew
> See: http://home.att.net/~ShipModelFAQ/ShopNotes/smf-SN-Metals.html
>
> John
>
>
>
> Dr Butter wrote:
>>
>> I'm looking for a chart with the temps for annealing various products.
>> I've seen them and had one till I changed jobs recently and lost a lot
>> of paper work. Its probably packed in storage Right now I specifically
>> want to know the temp(color) for tempering a chipping hammer. But I
>> wanted the chart for reference.
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