That turns it into the same mix as Teracorp magnum alloy, IIRC. BHN around 16.
Linotype, alloy mix
I'm going to be really lazy here. I have an alloy in one of several books but instead of looking it up I'm going to ask.
I have acquired 88 lbs. of linotype from my oldest son. I seem to remember one mixed it 50/50 with straight lead but don't recall the BHN # or if that is the correct percentages. Any help appreciated.
Thanks!
Vic
I have acquired 88 lbs. of linotype from my oldest son. I seem to remember one mixed it 50/50 with straight lead but don't recall the BHN # or if that is the correct percentages. Any help appreciated.
Thanks!
Vic
1 - 3 of 8 Posts
Sharps4590,
I missed your post. The LASC site has some of the data you want if you scroll down far enough, here. There is also a short list in the Lyman reloading manual.
Johnjay,
The whole Brinell hardness scale is based on the diameter of the impressions of a steel ball that results from putting a known load on it. You can substitute the Lee hardness tester's indentations, dividing the diameter of its indentation in pure lead by the diameter of the indentation you get in your sample. Get the sample BHN by looking up the ration on the right, below:
I missed your post. The LASC site has some of the data you want if you scroll down far enough, here. There is also a short list in the Lyman reloading manual.
Johnjay,
The whole Brinell hardness scale is based on the diameter of the impressions of a steel ball that results from putting a known load on it. You can substitute the Lee hardness tester's indentations, dividing the diameter of its indentation in pure lead by the diameter of the indentation you get in your sample. Get the sample BHN by looking up the ration on the right, below:
Code:
[FONT=Courier New]BHN Ratio
4.2 1.0000 Pure lead
5 0.9225
6 0.8470
7 0.7385
9 0.6979
10 0.6633
11 0.6335
12 0.6072
13 0.5840
14 0.5632
15 0.5445
16 0.5277
17 0.5122
18 0.4980
19 0.4850
20 0.4729
21 0.4617
22 0.4512
23 0.4413
24 0.4323
25 0.4236
26 0.4155
27 0.4079
28 0.4005
29 0.3937
30 0.3871
31 0.3809
32 0.3750
33 0.3694
34 0.3639
35 0.3588[/FONT]Yeah, no way to get there. I just left it there to illustrate the step sizes. It makes you realize an exact measurement is pretty tough to arrive at.
1 - 3 of 8 Posts
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