Metallurgy Of Cast Iron

236
METALLURGY OF CAST IROX.
T*1 /"V f^ L,EiD *3 "5

i No. of test 2 Iron used. 3 Breaking Strength. 4 Deflection 5 Contraction. 6 Chill. 7 Hardness. 8 Struc-' ture.
H X i.n Foundry pig. 2,169 Ibs; .107" .180" None •572 4
£!£ 2. Mn. in cupola 2,268 Ibs. .110 .231 None .122 5
IS 3- Foundry pig. 1,715 Ibs. .101 .198 None .625 5
EZ 4- Mn. in cupola i, 808 'Ibs. .082 • 237 " Slight^ .415 5
«*i 5- Charcoal pig. 1,510 Ibs. .075 ' .276 " None .438 3
£ 6. •Mn. in cupola 1,822 Ibs. .090 .291 None .410 4
s 7' Mn. in cupola 1,654 Ibs. .072" •315 " .025 .248 5
8. Mn. in ladle. 1,57-7 Ibs. .077" .284 " None • 506 2
ta * 9- Foundry pig. 1,428 Ibs. .101 .125 " None •730 3
££ 10. Mn. in cupola 1,690 Ibs. ,102 .204 " Slight .600 •5
u. Mn. in ladle 1,763 Ibs. .083 " .161 " None •705 4
12. Foundry pig. 1,652 lb.s. .105 j/ .216 None •553 3
* d 13- Mu. in cupola 2,269 Ibs. .130 .260 " Slight .107 6
14. Mn. in ladle 1,995 Ibs. ,100 " .229 '* None •532 4
8 IS- Mn. in ladle 2,016 Ibs. .100 .246 " None •578 4
16. Mn. in ladle 2, 122 Ibs. .095 .279 W Slight .490 5
<0 17- Foundry pig. i, 888 Ibs. )/ .100 u .309 None •347 3
o S5 18. Mn. in cxipola i, 794 Ibs. .097 " .320 " None .282 3
S 19. Mn. in cupola 1,845 los. .080 " •330 " .062 .204 3
ffi 20. Mn. in ladle 1,970 Ibs. .102" • 309 " None .314 3
21. Charcoal pig. 2,355 Ibs. >l .095 .339 .128 .385 7
1 22. Mn. in cupola 2,331 Ibs. .090" .348 " .166 .244. 7
23- Mn. in ladle 2,394 Ibs. II .100 •341 " •055 •450 5
w 24. Mn. in ladle 2,310 Ibs. .102." •340 " .040 .428 5
? J 25- Bessemer pig 1,701 Ibs. .125" .226 " .300 .430 3
as 26. Mn- in cupola i, 497 Ibs. •055 " .242 " All White White
0> 27. Charcoal iron. i, 570 Ibs. .052 " .401. 1-375 .040 Mottled
6 55 28. Vln. in cupola 1,082 Ibs. .046* .427 " All White White
S 29. Mn. in ladle 1,772 Ibs. .100" -326 " I.IOO .242 3
30- tfn. in ladle 2,066 Ibs. •095 -322 " -830 .222 3