Low temperature solder melting point?

There's some low temperature solders listed at http://www.indium.com/solders/wire/ . The composition is a little more complex than Lead/Tin.

If it is economical you might concider a beryllium/copper alloy. It melts around one thousand levels however the fabric can also be simply reduce and machined just after casting. A heat treatement then makes it about as hard as Aluminum. Plastic injection molds are most of the time manufactured from this alloy, considering that it's so effortless to mill simply after casting when it's as delicate as common Copper. I've encountered a further affordable alloy mainly utilized in metallic purchaser items like lamp stems. I don't know the designated composition but i think it has plenty of Zinc or Tin in it, on account that the material is fairly brittle and fractures to reveal a enormously crystaline constitution. It might be a form of pewter. I also suspect it has a very low melting factor and is low cost, due to the fact that so many non-long lasting patron items look to be made from it. It is rough adequate to take threading from a faucet & die however isn't terribly powerful so far as aiding heavy loads. Aluminum melts beneath seven hundred degrees and it is relatively low-priced with recognize to some alloys. What makes it a poor candidate for milling is the crystaline structure is just too gigantic. The steel is apt to form flakes and this may foul lathes, sanders and tap and dyes. A technique across the situation is adding Scandanum , a infrequent earth steel. It decreases the crystaline dimension and makes the Aluminum less difficult to desktop after casting. I suppose it additionally raises the hardness and strength, given that the crystals are now smaller. Scandanum alloys were what make Alunimum baseball bats feasible.