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cbrick
03-01-2007, 04:16 PM
If anyone acquires lead ingots with numbers stamped on them and wondered both what alloy they have is and what the numbers mean, this should help.

I have just added this and much more info on lead to the article Cast Bullet Alloys (http://www.lasc.us/CastBulletAlloy.htm).

The Unified Numbering System (UNS) designations for various pure lead grades and lead-base alloys. If you acquire ingots with any of these numbers, this what you have.

Pure leads L50000 - L50099
Lead - silver alloys L50100 - L50199
Lead - arsenic alloys L50300 - L50399
Lead - barium alloys L50500 - L50599
Lead - calcium alloys L50700 - L50899
Lead - cadmium alloys L50900 - L50999
Lead - copper alloys L51100 - L51199
Lead - indium alloys L51500 - L51599
Lead - lithium alloys L51700 - L51799
Lead - antimony alloys L52500 - L53799
Lead - tin alloys L54000 - L55099
Lead - strontium alloys L55200 - L55299

Rick

44man
03-01-2007, 05:52 PM
There is some real nasty stuff listed there. Good info and a warning to steer clear of some of it.

cbrick
03-01-2007, 11:11 PM
44man,

From what I have been able to discern (from all the industry stuff I have been reading) is that most of these standard lead alloys have about the same percentages as the arsenic content of wheel weights. In other words, not much.

The UNS is used by commercial purchasers in ordering a specific lead alloy (in tons) from industrial suppliers.

I posted this here because if someone comes across ingots for sale they may not want it simply because they don't know what it is. This would help them out if there are any of these numbers stamped on it.

Rick

Ranch Dog
03-01-2007, 11:50 PM
Thanks Rick!