Document dY1kywdEyXxKvD4XDn02vZDXe

I The subject nuterial throughout the density range of 11.5 to 16.2 lb per cu ft set the physical requireBents of Ravy Specification 32-P-8, Gr.-de II, 6-1-44. In fact, the results for 24 be rs at 1000 T are within -he requireaents for 6 hours at 750 f. In to Instances the saterial eas *co soft after heat treataent, but the other 4 groups act the specifica tion la hardness. The epeelaens aade using la part the scrap froa the previous run, for which a virgin six eas used, appeared to be ae eatisfaetorr aa the flret run aatarial. MTC 000515 JOHNS-MANVILLE MANVTUX. N. J. 21-601 PMC NO._________ -Jj 2. DETAILED investigation '^teriai Of .-unoa ite Pi pa Insulation mode from a virgin mix, 1 section of 12" li-tmeter 1" thick and 5 sections of 3" diameter, 1" thick, were submitted by ?. .'icDeroott on June 20, 1941 for test; of the 5 sections of 3" sise, 3 were -f approximately 11.8 lb, 1 of 13.3 lb, and 1 of 16.2 lb per cu ft density. Three sections of 3" diameter, 1* thick material made using in pert scrap from the previous run were submitted on June 24th. Of these, 1 section had a density of 11.7 lb per eu ft, the other 2 of 13.8 lb per cu ft, as r*ceived. Infill Complete ptaytlcal tests, covering all the items in !Uvy Specification 32-P-S, 6-1-44, Grade II, were run oa the 3" diameter, 1* thick staples. Since there eas only 1 section of 12" diameter, 1-1/2" thick materiel available, it waa not cut up but checked only for dimensions sad density. i- MTC 000516 2. :miLD ISTSSriSATIP.i-Cont'd. Phygrgal Properties of Experimental Aeoalte Pipe Tw<tii-.tap nfd. fi IT"" flltuM Ear, Tt Ho. if Samples Tested Bach Section U" T.ilcfc. ^4# Dersity. ______ _3 Pi--tar. 1 Thick 11.8# Denelty,13.5# Density, I_SectIon----------- 3, 8tn;PfLfiSSlitflft Id Dlaensioas-in. length . .Thickness 10 Density As Received Dried st 235 ? Abrasion Lose-* 10 sin 20 nia Transverse Strength-pel Heat Resistance 6 Hr at 750 f Height Lose-9 Linear Shrinkage-8 Hardness - 1/4* pt.* Before Heating After Heating 24 at 1000 P After Besting Hoistore ihecrptlon 1 1 1 2 2 3 3 3 2 2 3 3 3 3 36.0 - - 36.0 36.0 36.0 36.06 1.57 - 1.02 1.16 0.94 1.13 - e 36.0 l.a 12.7 - 3.68 3.70 3.64 3.66 m 3.7 12.4 - - 11.8 12.0 11.5 13.5 - - 16.2 26.2 2S.6 23.8 15.2 16.0 H.5 12.3 %* ' r iS-4 - 2.7 107 24.8 175 3.7 3.1 2.6 2.7 2.8 2a 2.3 .05 .08 .as oa 0.6 0.2 0.2 a- m *s 1 3.3 3a q.3 oa \.*i 91 >300 3.1 oa m m 3*0 u a 49 3.1 oa - 3.8 0.06 e m 3a oa 33 81 % hr Height tw MTC 000517 Report Mo. 21-6431 - Pt| Ko. 2. "e Pi,_? Ir.f.Jlatlon ;ifd. from Virsin Mix U.7# Dons 7 -la,-.-r'.er, 1" Thick i 1 . 5f *'enaityf 1ST,2# Danalty, _ 1 Soctlon Mo. of 13.8# Donolty, No. of 1 jec-.ian _____ 1 Soctloo SuidM--SMpUo Ay&_ JiML . Lem -43L- JtUfe- __iss_ Mary Sp*c. 32-P-8 Grad* II, 6-1-44 36.06 _ 36.0 1.13 1.08 3.66 - 3.72 - 13.5 - - 16.2 - - 15.2 16.0 14.5 12.3 13.1 11.9 30.4 132 i-0 28.7 107 # 29.6 217 iS-' 36.00 36.00 36.00 0.97 0.98 0.96 3.99 3.62 3.96 13.8 13.8 133 13.9 13.9 U.9 ajii 4*.i 9.5 139 m m 60 1 1 1 1 1 1 1 3 36.0 l.CH 3.9< U.7 U.9 27.7 99.6 90.0 15-0 2.7 0.4 47 48 3.0 0.2 47 49 2.8 0.6 - 3.1 .Oa - 2^ 2.3 0.2 0.2 -& 2.8 0.06 * - 33 93 9 81 2.7 0.3 m 33 0.5 .. M 1.9 0.QB m m 3*7 0.3 M i t 2.1 2.5 1.6 0.2 0-4 0.1 zzz )i 3*f I4 0J M 3 3 S 3 i\ oa 10.0 Ht 0.3 2.0 MX Ss 3.1 0-4 r * # MTC 000518