1918. 
36 REPORTS ON THE STATE OF SCIENCE. 
Taste XIII.—Comparison of 
Sra Tic. Impact by 
| Ultimate Elongation Con Energy of 
Strength | - trac rupture 
Mark Tons | Gene- Total | tion of Fracture K.G.M. 
in? ra] | Local | ong | Area cb. cm. 
% Inch % % 
Gun Steel 1 | 51:06 FAD ‘21 |18-0 | 62°6 | Minutely fine crys- | 12°86 
tals, cup-shaped. 
as ee | SBS 8-0 -28 | 22:0 | 60:0 —_ 15:05 
°° 33. 8S ae ta aia in? i BL ae 
29 23 4 | a = es ra eae TE yr 
Rll 1. | 50°83 4 ‘21 | 14°5 | 62°64 | Minutely fine crys- | 10°33 
tals, silky at edges, 
cup-shaped. 
2 - Be pa: 
3 zat =. = = = ae, we 
R19 1 50°55 | 5d "25 18 | 61:30 Ditto 12°74 
B =v —. —s = a pee —— 
3 — —— — — —— a — 
R3l 1 33°97 = == — | 59°40 Ditto = 
3 33°44 = = — | 59-40 Ditto — 
5960 2 520 = = — | 59°40 Ditto — 
TaBLE XIV.—Comparison of 
STATIC. Impact by 
Uieanate Elongation Con Work of 
trengt trac- rupture 
Mark Tons | Gene- Bs Total | tion of Fracture KG. 
in? ral Ocal} on 2” | Area cb. cm. 
| % Inch % % 
20% cryst. 
3184 B2 43°97 15 15 | 22-5 | 31 80% V.E.C. 13°85 
3184 B9 43°43 18 09 | 22:5 | 31 V.F. cryst. 13°65 
3184 B15 | 42-89 15 15 | 22-5 31 a 13°50 
3184 B26 | 42:36 16 18 | 25 36 on 14-82 
3198 Bl 43-26 12 24 | 24 36 A 14°51 
3198 B9 43-80 16 17) «| 23:5 36 » 14:40 
3198 B17 43-71 14 ‘17 | 22-5 | 39 er 13°80 
3198 B24 | 42-82 13 18 | 22 36 % 13°19 
5% eryst. 
2300 Bl 45-57 13 17) (| 21-5 34 95% V.F.C. 13-70 
70% eryst. 
2300 B7 44-24 13 12 | 19 28 30 V.F.C. 11-75 
20% cryst. 
2300 Bl4 | 46-47 12 13° | 18-5 | 28 809% V.F.C. 11:76 
10% eryst. 
2300 B21 46-65 15 ‘ll | 205 | 31 90% V.F.C. 13°37 
50% eryst. 
1324 Al 46-29 13 09 | 17:5 | 24 50% V.F.C. 11:32 
70% eryst. 
1324 A7 46-30 14 08 | 18 22 30% V.F.C. 11-69 
50% eryst. 
1324 Al4 | 44-58 15 10 | 20 28 50% V.E.C. 12-48 
70% cryst. 
1324 A20 | 45°48 14 09 | 18:5 24 30% V.E.C. 11:75 
