CORROSION RESISTANCE OF HASTEllOY®AllOYS - Haynes ...
CORROSION RESISTANCE OF HASTEllOY®AllOYS - Haynes ...
CORROSION RESISTANCE OF HASTEllOY®AllOYS - Haynes ...
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Type<br />
316<br />
Concen- Temperature HASTEllOY~ alloy Staintration,<br />
less<br />
Corrosive Media percent deg. F deg. C 8/8-2 C/C-276 G/G-3 Steel Conditions<br />
Detrose (Greens) Liquor - 315·325 158·163 - G - - 0.04 N HCI. Alloy C= 4.35 mpy<br />
Oi-basic Organic Acid - 158 70 E E - E<br />
and Thiourea<br />
Di·basic Organic Acid - 158 70 E E - E aeration, H2S in vapor phase<br />
and Thiourea<br />
Dichlorethane 100 to 125 to 52 S S - -<br />
Dichlorobenzene - 355 180 E E* - - 4-5% hydrogen chloride, duration of test - 53 days, ·slight attack under<br />
spacer<br />
Dichloromonofluoro· 60 165 74 G E - E hydrogen chloride 20%; hydrogen fluoride 10%; chloroform 5%; an·<br />
methane and monochloro-<br />
timony pentachloride, oxygen, nitrogen, total 5% (all approx.); water not<br />
difluoro·methane<br />
over 200 ppm<br />
Dichlorophenol 100 250 121 E E E E trace of hydrogen chloride and water vapor<br />
Duration of test - 36 days<br />
Aeration - moderate<br />
Agitation - none<br />
Process involved - dichlorophenol<br />
Diethyl Malonate - 77-212 25·100 G E - - 2 cycles, liquid 72 hrs., vapor 130 hrs., malononitrile process (pilot plant<br />
test)<br />
Diethyl Sulfate - 180·194 82-90 G E - U Alloy B pitted in liquid. H2S04 (small amI. probably). 153 hrs.<br />
Dimethylaniline 26 212 roo E G - U 117 hrs. field test, aqueous DMA-HCI<br />
Hydrochloride<br />
Unsymetrical - 86 30 E E - E testing rocket fuels, 28 days<br />
Dimethylhydrazine<br />
Unsymetrical - 146 63 E E - - testing rocket fuels, 7 days<br />
Dimethylhydrazine<br />
Diphenylamine - 212 100 E E - E hot wash liquid, reaction product of diphenylamine and acetone in HBr<br />
catalyst after addition of 50% NaOH to yield pH of 12·14, moderate<br />
aeration<br />
Dodecylbenzene - 145·165 63-74 B - - - plus S02, S03' spent H2S04at bottom of sulfonator. Alloy B = 27 mpy<br />
Sulfonic Acid<br />
(liquid), 32 mpy (vapor)<br />
Duke's Mixtures - 70 21 - E - S industrial waste: water, low but widely varying concentrations of<br />
hydrochloric, hydrobromic, sulfuric, sulfurous acids, alcohols,<br />
chlorinated organic solvents. pH about 1, moderate aeration<br />
Electrolyte - 150 66 S* E E E 194 gil H2S04, 49 gil CUS04' 1gil CaO. ·specimen corroded away or was<br />
lost, air free<br />
Epichlorhydrin - 176-212 80-100 - E - - plus caustic soda, bisphenol, trichloroethylene, and sodium chloride<br />
brine. pH = 10·12 in resin manufacture. Alloy C