PDA

View Full Version : Question on alloy



44man
09-20-2005, 08:22 AM
I have a bar about 13" long that looks like body solder. It is marked Baltimore Maryland and "Dixie". There are no marks as to how much tin is in it. Does anybody know?

felix
09-20-2005, 09:45 AM
Don't know, but you need to find out if it is tin based or lead based. Make known boolits with it and compare it to your normal WW boolits in terms of weight. If it is SAIGNIFICANTLY lighter than WW, call it tin based and treat it as pure tin when augmenting a pot full of WW. A babbit/solder that is 80 percent tin would be treated by me as pure tin, for example. Close enough for all practical purposes. ... felix

44man
09-20-2005, 04:25 PM
Thanks Felix. Be kind of hard though, it is only one pound. I would have to melt some in the ladle to pour in a hot mold. I am having trouble finding tin and want to use it to alloy WW metal. I was thinking of doing a Brinnel test on it but don't know what it should be for tin-lead alloys.

drinks
09-20-2005, 04:36 PM
I have given up on finding scrap Tin, I just buy the leadfree plumber's solder, 95% Tin, a 1 lb roll is about $7 here and will take care of about 100lb of wws.

felix
09-20-2005, 05:28 PM
44Man, hardness measurements are not the goal of tin based babbits, but toughness is (rotating speed requirements for tin base babbit; rotating weight capability for lead based babbit). So, just go ahead and see what a boolit weighs out to be, and compare that to your WW boolit. ... felix

slughammer
09-20-2005, 06:10 PM
Can you get accurate enough measurements of the volume and weight to calculate the density?

I have pure lead as .41 lb/in^3 and I have "Alloy?" as .37 lb/in^3.

And I just did a search on the net and found the following for solders

50/50 = .321
60/40 = .311
70/30 = .301
95/5 = .271

44man
09-21-2005, 04:54 PM
I found some marks on the back after cleaning the dirt off. It is marked Dix fiftee. Yes, thats how it is spelled. (Made in Mary Land after all.) I take it that it is 50-50 then. I will use it to alloy WW's going by that and should be OK.
Thanks guys.

44man
09-21-2005, 04:56 PM
I made a bunch of boolits by adding 2% tin to WW's and they REALLY came out nice. Clean sharp edges and grease grooves. Have to shoot them tomorrow after they harden for a day.

44man
09-23-2005, 01:49 PM
For some reason, some of my postings have just vanished. Then I get a message that I can't do anything off line. I click on connect and all of me messages come back. Rita must be doing something.

nighthunter
09-23-2005, 03:17 PM
I think its a higher powers way of telling you you spend way ... way too much time on here and not enough time out at the range. LMAO
Nighthunter

rhead
09-23-2005, 06:26 PM
Kerosene usually has a fire point of about 125 degrees. A bucket of it can burn by itself once you get it hot but with a hole lake of water under it it ould have to have gasoline in it also and would not burn compeletly.

Deupety Al wait untill you are told that of course history was easy for you in school. :-P The book was only an inch thick. :-P No respect.