CORROSION RESISTANCE OF HASTEllOY®AllOYS - Haynes ...

Type
316
Concen- Temperature HASTEllOYqp alloy Staintration,
less
Corrosive Media percent deg. F deg. C 8/8-2 C/C-276 G/G-3 Steel Conditions
Trichloroethylene - 212 100 E E - - alternately exposed to primary and secondary media in steam distillation
and rectification of crude trichloroethylene. Alloy C= 0.08 mpy
Trichloroethylene - Boiling Boiling - E - - plus 1% water
Trichloroethylene - 212 100 E E - - plus steam in vapor phase during distillation process. Alloy C=0.08 mpy
(Crude)
Trichloromonofluoro- 64 160 71 S E - E hydrogen chloride 20%; hydrogen fluoride 10%; carbon tetrachloride 1%;
methane and Dichlorodi-
antimony pentachloride, oxygen, nitrogen, total 5% (all approx_); water
f1uoro-methane
not over 200 ppm.
,',
Tricresyl Phosphate 88-90 580 304 - E - - plus 5 percent triphenyl phosphate, traces of HCI and organic chlorides.
Alloy C = 0.1 mpy
Tricresyl Phosphate 88-90 700 371 - E - - plus 5 percent cresylic acid, 1 percent MgCI2, 5 percent thiophenols.
Traces of HCI, organic compounds, residue tar tank cleaned intermittently
by sand blasting. Alloy C= 0.1 mpy
Tricresyl Phosphate 89-90 700 371 - E - - plus 5 percent cresylic acid,S percent thiophenols, traces of HCI , MgCI2
and organic chlorides, 43-day test exposure. Alloy C= 0.2 mpy
Tricresyl Phosphate, - 570 299 E - - - 90 days in distillation column
Crude
Tricresyl Phosphoric - 176 80 - E - - trace of cresylic acid. Alloy C = 0.05 mpy, 13,800-hr. test
Acid, Crude
Triethanolamine - 90-220 32-104 S E - - 30 percent HCI is added to triethanolamine in steel tank
Hydrochloric Acid Slurry
Trifluoromethyl - 300 149 - G - - in thionation process plus some sulfur, iodine and monochlor benzene.
Diphenylamine
Alloy C = 9 mpy
Thiocarbamide, - 139 59 S U U - an aldehyde (unspecified), acetic acid (concentration unspecified)_ Mix
Hydrochloric Acid
neutralized with 23% sodium hydroxide.
Uranium Ore - 113 45 - E - - pulped uranium ore containing 60 percent solids; 28-55 grams/liter
H2S04, 5-10 grams/liter ferric ions, some ferrous ions, about 0.1 percent
NaC10 3 . Alloy C = 1.3 mpy
Urea 28 355-360 179·182 - S - - plus 32.2 percent ammonia, 20.5 percent water, 19 percent CO2, 0.3
percent inerts, plus air. In liquid urea reactor 3 ft. below top head. Alloy C
= 17 mpy
Urea 58.4 350 177 - B - G ammonia 16.8%, carbon dioxide 14.8%, water 9.9%, aeration
Vagh Resin Solution - 86 30 B B - U samples in 3·inch line to storage tank, 1440 hrs.
Vagh Varnish - 140·158 60-70 S S - U CI2·H20 (hydrochloric and hydrochlorous acid) production of Vagh varnish,
1608 hrs.
Vapor, Saturated - 180 82 - E E E rotary dryer containing sodium phosphate, NaCl, Na2S04, CO2and H2O.
pH varies from 1 to II, 57 days, extensive aeration
Vapor, (Saturated) from - 125 52 - E E E containing sodium phosphate, NaCI, Na2S04. pH varies from I to II, ex·
Rotary Dryer
tensive aeration, 89 days, 200-269 fpm
Vapor from Top of - 512-525 267-274 - E E E tall oil purification, aeration
Fatty Acid Still
Vegetable Tanning 100 125·175 52-79 - E - -
liquor
Venturi, (Wet). Scrubbing - 143 62 -
Stream Removing Fly
E E E gas; 83% N2, 360 ppm S02, 80 ppm H2S04.Ash; 6% CI', extensive aeration
Ash from Boiler
Burning Corn Cobs
Vinyl Acetate 75 300 149 - E - - plus 24 percent acetic acid, I percent acetaldehyde, anhydride. Alloy C=
nil mpy
Vinyl Chloride 100 60·80 16-27 S E - - containing unsettled droplets of sodium bisulfite; normal range 4·8
percent, maximum 15 percent. Tests made in scrubbed vinyl monomer
phase. Alloy C