Bronze blade

delbert ealy said:
You want phosphor bronze. Silicon bronze really sucks. I've made several bronze blades and phosphor bronze is the closest I have been able to find to good old tin bronze.
For the rest of you guys, Yes bronze is inferior to PROPERLY HEAT-TREATED STEEL I have had a few steel knives that would be outcut by a good bronze blade.
Thanks,
Del
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I'm building a small foundry early next year with a pland to do some bronze...What is good old tin bronze and is it posible to do in small amounts????

Pete Allan said:
Quite some years ago in a small foundry I owned we were melting silicon bronze and one of the workers dropped a small 1020 spru into the induction melting furnace and it melted before we could fish it out. We were pouring some Lion feet for tables so we poured the molds anyway. I don't know what kind of alloy we ended up with but it was so hard it would destroy a good hacksaw blade cutting through a 1/2" dia. No we didn"t save any of it.
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Any guess on % of the 1020 in the mix. Maybe I can make a similar WOOOPS.

Larry
 
A friend gave me an old bronze sign/plaque a few weeks ago. Anyone know a way to tell what kind it is or if I can forge it? This is the first time I have had any of this material and this thread seems the perfect oportunity to ask about it. I would love to forge a blade from it.
Thanks
Mace
 
i dont know where to get the bronze but i know you can make the bronze harder by forging it to shape then grinding it to finish
 
Larry,
The bronze I referred to as good old tin bronze is 90% copper and 10% tin. it doesn't get any simpler than that.
 
If I mix it myself I'm guessing it would be a lot healthier.....I think I'll give it a try. Thanks

Larry
 
A 1020 spru is a runner from a previous poured steel casting. I don't think it would be possible to recreate the mess we had without a powerfull induction furnace. Remember that steel melts about 1000deg.F hotter that bronze.
 
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