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Thread: Casting temperature question

  1. #21
    Boolit Master



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    Quote Originally Posted by lightman View Post
    Something I have not seen listed yet is oxides. It seem like you get more oxidation on your melt at hotter temps. I like to cast around 725. Others differ.
    I like to keep a layer of flux on top of the pot to help keep lead from oxidizing and hopefully catch tin rising up and gassing off. I stir it back in occasionally from time to time.

  2. #22
    Boolit Grand Master

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    Mar 2005
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    Quote Originally Posted by Larry Gibson View Post
    Oxidation of alloy on top of a melt is not tin that is drawn out of the alloy. It is the alloy itself. Or, it is not tin that has separated from the alloy. The "oxidated" part will have the same composition of the alloy.....because it is the alloy. Oxidation on top of the melted alloy hurts or changes nothing.
    Why did the old time linotype machines require "sweetening" of the alloy? According to what I've read, the Sb and Sn oxidized off and had to be replenished.
    You cannot discover new oceans unless you have the courage to lose sight of the shore

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check