How hard is # 2 alloy?
John
How hard is # 2 alloy?
John
Lyman #2 has a Bhn of 15
Regards
John
According to a test down in Handloader Mag. Lead is 4.2 BHN, wheel weights are 14.0 BHN and Lyman # 2 is 15.0 BHN Author for the article is Dave Scovill.
In the same article he also lists Heat treated wheel weights at 34.0 BHN ( if the have a substantial amount of antimony in them) and 7.5 BHN for a batch of wheel weights with no antimony, heat treating changed nothing in this batch of alloy.
Linotype was21.5 BHN stereotype was 25.0 BHN and Monotype was 28.0 BHN.
Hope this info helps out. Info from Handloaders Bullet Making annual II.
John - put this link in your references in case you have insomnia some night Ya never know - 64 million folks have it!
http://www.lasc.us/CastBulletNotes.htm.
Regards
John
Anybody tried quenching #2?
(Not what I plan to do in the morning, and no floaters, I'm just talking about sinkers.)
"A cheerful heart is good medicine."
i have never seen anything on w q #2.
but i am interested in what it would be.
my saeco tester stops at 10. it does test pure and ww's accurately but anything hard
like 15 plus bhn is just a guess.
If you check the "Toughness of Lead-tin-antimony Alloys" sticky, you'll see I did a full range of heat-treatments on 4/4 and 6/6 alloys, going all the way from air cooled to maximum quench. I didn't test 5/5 (which is Lyman #2) but it will be just halfway between them, on the graphs.
In other words, since 4/4 was 14.5 BHN air cooled and 23.3 with maximum quench, while 6/6 was 17.8 air cooled and 22.2 with maximum quench, 5/5 would be approximately 16.1 air cooled and 22.8 with maximum quench. Note that in this range, in my tests maximum hardness decreased with increasing antimony content. I hope to gather some more evidence on that subject eventually.
Last edited by grumpy one; 06-07-2008 at 08:25 PM. Reason: Expanded response.
That is interesting! Thanks!
"A cheerful heart is good medicine."
Ive found that using the old traditional mixes for #2 that you end up at around 14. I think our wws these days are a tad softer then those of old.
I agree with Lloyd on that one, I check around 25lbs of ingots with my tree tester and most of them ran around 12~13brn.
"Life isn't like a box of chocolates...It's more like
a jar of jalapenos. What you do today, might burn
your ass tomorrow."
so you add ten to the tenscale bhn reading?
like if it reads three you add three to what the ten would be [21] ?
or if it reads 3 like bhn [8] you add ten to that for an 18 total?
Last edited by runfiverun; 06-08-2008 at 10:10 PM. Reason: clarification
R5R, If your Saeco shows a number less than 5 and the scale centerline is above the centerline on the reference scale (the other half - so you know it isn't just reading 3) add 10 to the reading =13 = the Saeco number. Then convert to BHN. Probly (a guess) about BHN 30 maybe.
We need somebody/something to keep the government (cops and bureaucrats too) HONEST (by non government oversight).
Every "freedom" (latitude) given to government is a loophole in the rule of law. Every loophole in the rule of law is another hole in our freedom. When they even obey the law that is. Too often government seems to feel itself above the law.
We forgot to take out the trash in 2012, but 2016 was a charm! YESSS!
o.k. you just keep going 10-11-12-13 then try to convert to bhn..
i'm just gonna save up and buy a lee [never thought i would have to say that ever]
For just a few $$$$ get a Cabine Tree, http://www.castingstuff.com/cabinetr...ad_testers.htm
I can't say enough about the quality of this tester.
Lee tester $45.00 plus shipping
Cabine Tree $105.00 to the front door.
All I can say is I’m very happy I waited till the cash was there to get my tree.
Warf
"Life isn't like a box of chocolates...It's more like
a jar of jalapenos. What you do today, might burn
your ass tomorrow."
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 |