For Impact Report. 
ON IMPACT TESTS. 
41 
Contracted cneaens s S aa | 2 
* A as d 3S dO 5 a b= s 
Dimensions S g oisacthiahtatc bo Z 5 BP as iI g Remarks 
3. 2 Qe Sie. tee 
Be a aH | AS S 
Pa #468 Lal S — 
: | on on S = fora | 
Diam.| Area 3 Mine) oitas: 8 3 ae)” Fracture 
Inch | sq. in. Inch | Inch | Inch 
\y 85% crystalline. 
35 | 096 | 21:3 | -62 cil "12 | 125 | 15:5 | 19°2 | 15% very fine 
eryst. 
7 7 ¥ _ | 50% crystalline. 
34 ‘O91 | 24:8 “60 37 “14 11:5 | 15:0 16:5 | 50% very fine 
eryst. 
20% crystalline. 
33 | ‘086 | 29°3 | -68 44 ‘20 | 12:0 | 17:0 | 16-5 | 80% very fine 
cryst. 
32 | 080 | 34:2 | °73 46 ‘19 | 13:5 | 18:25] 18-4 | Very fine erys- 
talline. 
24 | 045 | 62:6 | ‘51 36 ‘21 75 | 12°75) 38:20 Minutely fine 
cryst., cup- 
shaped. 
25 | 049 | 600 | 60 | 44 | 28 | 80 | 150) — Lets 
| 
For Impact Report. 
3 3 
@ c=| is) aa 
a Elongations 3 “= o.8 
pe obacted ‘33 measured 3 £0; at Remarks 
ensions | <6 | after fracture g TSE eye 
Sa She pee = eS 
ge q | 28] 38 ; 
Diam,| Area | # a ae 8 FI 23 Type of Steel 
a 8 4 ins. | 2 ins. 4 6 Ba, 
Tach | sq. in. Inch | Inch | Inch | 
236 | 0437 | 62°6 37 29 | 21 40 9:25 | Ni. cr. steel. 
er aad - al sa ! ae "Sh. Tea 2? 9 
245 | 0471 | 61°30 | °47 36 25 5°5 | 11°75 | Ni. steel. 
a a a if as i aa | Se cis 379 
246 | 0475 | 5940 | — — — -- — |C. steel. 
Ty yee TIS)! 2s Pergo piconets 
‘ | 
246 | 0475 | 59°4 =— |] = = — — |-V. er. steel. 
} | 
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