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Thread: Melting points of Lead and Alloys

  1. #21
    Boolit Master

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    Quote Originally Posted by N1YDP View Post
    can you use rosin core solder?
    Lee says it will rot your pot out but most of the casters on here say they have used it for years with no side effects. Found some on my shelf and put it with my casting supplies and plan on using every bit of it as needed.
    Lead bullets Matter

    There are three kinds of men: The ones that learn by reading. The few who learn by observation. The rest of them have to pee on the electric fence and find out for themselves. - Will Rodgers

  2. #22
    Boolit Master


    mold maker's Avatar
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    The worst solder aid used is the sal-ammoniac used to clean the solder irons. That stuff would rust, rust.

  3. #23
    Boolit Master popper's Avatar
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    Add my 4% Sb, 1% Cu 95% Pb solidus near 575F, while I could still pull the probe out.
    2% cu, 585F.
    Last edited by popper; 09-29-2015 at 08:42 PM.
    Whatever!

  4. #24
    Boolit Master 303Guy's Avatar
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    That's a very small change of melting point for the change of copper. Copper is supposed to have the greatest effect on melting point. Clearly the effect is highly modified by the other elements present.
    Rest In Peace My Son (01/06/1986 - 14/01/2014)

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  5. #25
    Boolit Master

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    Quote Originally Posted by wiljen View Post
    Temps in F

    Pure Lead 621
    Monotype 512
    LinoType 462
    WW 560 (Per MSDS sheet)
    10:1 563
    20:1 590
    30:1 600
    Good info, thx. This list along with Zinc and other metals such as Tin and Pewter that might be of interest to bullet casters would make a good sticky.

  6. #26
    Boolit Master popper's Avatar
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    Interesting that Sb reduces temp much more than Sn, Cu increases. Someone have a number for the 0.3% babbit compounded alloy (Goodsteel)?
    Whatever!

  7. #27
    Boolit Master

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    So, I couldn't resist

    Here is some more melting point information.

    Click image for larger version. 

Name:	Lead Binary Melting points.jpg 
Views:	66 
Size:	50.3 KB 
ID:	156880 from: http://www.engineeringtoolbox.com/me...ls-d_1269.html

    and

    Click image for larger version. 

Name:	Melt points.jpg 
Views:	60 
Size:	58.9 KB 
ID:	156881 from: https://www.americanelements.com/meltingpoint.html

    I found the data kind of neat. The links (as long as they shall live) have a whole bunch more but I felt this edited data was more in-line with casting.
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  8. #28
    Boolit Master

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    Quote Originally Posted by popper View Post
    Interesting that Sb reduces temp much more than Sn, Cu increases. Someone have a number for the 0.3% babbit compounded alloy (Goodsteel)?
    It's been too long now popper. I can't remember, and that's a detail I didn't write down. Sorry!
    Tim Malcolm
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  9. #29
    Boolit Master Oklahoma Rebel's Avatar
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    im starting to think it is zinc, im going to have to get some muriatic acid, will it fizz even if its only 1-3%? also, it never floated like the zinc ww's I missed that I pulled out of the same batch?
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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