CORROSION RESISTANCE OF HASTEllOY®AllOYS - Haynes ...

Type
316
Concen- Temperature HASTEllOY~ alloy Staintration.
less
Corrosive Media percent deg. F deg. C 8/8-2 C/C-276 G/G-3 Steel Conditions
Lactic Acid 50 Boiling Boiling G G - G proposed lactic acid service, 115 hrs., lab test
Lactic Acid 85 Boiling Boiling - E - -
Lactic Acid 90 Boiling Boiling G G - S proposed lactic acid service, 115 hrs., lab test
Lanolin Bleach - 210 99 E E - - plus dilute H2S04, HCI, alcholic caustic solutions, H202and strong NaOCI
bleaches. Alloy C=0.141 mpy
Lead-Bismuth Alloy Eutectic to 464 240 S S - -
Lead, Lead Chloride - 982-1000 526-537 B U U U argon atmosphere. Top -lead, middle -lead chloride, bottom -lead
B U U U chloride upper phase
B U U U
Levulinic Acid 95 80-110 27-43 E - - -
Lime Slurry - 184 85 - E - E added to organic polymer containing excess sulfuric acid
and Caustic Soda
Limestone Slurry 8 120 49 - E E E CaCOl CaSOl, CaS04 and fly ash, pH 5.0-6.0, moderate aeration
Limestone Slurry - 89 32 - E E E 15% CaCOl in water, pH 6.3-7.9
Limestone Slurry - 107 42 - E E E 15% solids, CaCOl plus CaSOl and a small amount of CaS04' pH 3.7-6.7,
avg. 5.6, moderate aeration
Limestone Slurry - 127 53 - - E E flue gas containing 2 Ibs.lmin. of S02' pH 3.5·6.3 avg. 5.7, 91 days,
scrubbing liquor for S02 removal from power plant
Limestone Slurry - 254 123 - - E E scrubbing liquor for S02 removal from power plant flue gas, 91 days,
moderate aeration
Liquid leaving bottom - 265 129 E - - E virtually free of HCI, mostly phosgene and monochlorobenzene
of Fractionator
Lithium Chloride 30 260 127 - - E - bal. H20, 2000 hrs., LiCI production, one sample out of four showed
shallow pitting, 1.5 mils deep.
Lithium Chloride 90 300 149 - - E - bal. H20, 2000 hrs., LiCI production
Manganese Sulfate - 60-145 16·63 - E - - manganese ore leaching (anoxide and sulfide) plus sulfuric and sulfurous
acids. Alloy C=0.1 mpy
Magnesium Carbonate 10 to B.P. to B.P. S S - -
Magnesium Chloride 10 75 24 E E - -
25 to B.P. to B.P_ E E - -
40 175-B.P. 79-B.P. E E - -
50 to B.P. to B.P_ E E - -
Magnesium Chloride 30-40 273 134 - E - E with small amounts of MgS04, NaCI, KCI, LiCI, traces of Br, 3-4% solids of
MgS04, 1.25 H20, extensive aeration
Magnesium Chloride 51 330 166 G E - - 1%NaCI, 1%KCI, 2% LiCI, vapor phase, 120 hrs., aeration and agitation
moderate
Magnesium Chloride 51* 330-335 166-168 - E - - * 100 hrs. with MgCI 2 brine only. 1% NaCI, 1% KCI, 2% LiCI as concen-
CI2
trated from natural Bonneville brines of 33% solubles. liquid phase exposure,
moderate to considerable aeration
Magnesium Chloride 53 345 174 E E - - vapor phase above with 8,000-10,000 ppm HCI in condensate
Magnesium Chloride 55 345 174 G E - - with 1% NaCI, 1% KCI, and 2% LiCI, as concentrated from natural
Bonneville brines of 33% solubles.
Magnesium Chloride 85 266 130 S E - - in open-pan evaporator. Concentration expressed as MgCI 2 .6H 2 0. Alloy C
100 334 168 E E - - =0.1 mpy (85 percent) 0.3 mpy (100 percent)
Magnesium Chloride - 310 154 - G - - in vapor phase - vapors over 50% MgCI2with 500 to 4,000 ppm HCI in
condensate and 1,000 ppm MgC1 2 .ln liquid phase - 50% MgCI 2 solution,
plus 1%NaCI, 1%KCI, 2% LiCI. Concentration of natural Bonneville brine
from 33% solubles to 50%.
Magnesium Chloride - 335-355 168-179 - E - - 53% magnesium chloride with 1% NaCI, 1%KCI, and 2% LiCI, as concentrated
from natural Bonneville brines of 33% solubles, moderate to con·
siderable aeration
Magnesium Hydroxide - 150 66 - - E E absorption liquid for S02. Generates bisulfite cooking acid w/pH of 5.4,
aeration
E - Less than 2 mpy (0.05 mm/y)
G- 2 mpy (0.05 mm/y) to 10 mpy (0.25 mm/y)
S - Over 10 mpy (0.25 mm/y) to 20 mpy (0.51 mm/y)
B - Over 20 mpy (0.51 mm/y) to 50 mpy (1.27 mm/y)
U - More than 50 mpy (1.27 mm/y)
B.P. -
Boiling Point
29