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 />
Molybdic Acid - 300 149 - B S S formed by reaction of MoS2, oxygen and 5% HNO). H2S04conc. goes to<br />
20%. Jacketed vessel allows heating·cooling. Extensive aeration<br />
Mono Phosphates 10 to B.P. to B.P. S - - - sodium, potassium, or ammonium<br />
Monoethanolamine 30 150 65 E E - - in methanol, 72 hrs., lab test<br />
Hydrochloride<br />
Monoethanolamine - 204 95 E E - - N2atmosphere, 72 hrs., lab test<br />
Hydrochloride<br />
Monomer & Dimer - 537·550 281-288 - E E E aeration<br />
Fatty Acids from Tall<br />
Oil Purification<br />
Morpholine Reaction - 156 125 G B - - 88 hrs., lab test<br />
Mixture - 392 200 B U - -<br />
Morpholine Sulfate - 374 190 B B - - 141 hrs., lab test, valves for morpholine sulfate service<br />
Municipal Garbage - 170 77 - E E E from secondary chamber after passing through scrubber marble bed plus<br />
Incinerator Flue Gas<br />
entrained liquor at pH 3-4, extensive aeration<br />
Municipal Garbage - 160 71 - E E E water draining from marble scrubbing bed plus direct spray of neutral<br />
Incinerator Scrubbing<br />
H20. pH = 2.0-3.5. Municipal garbage incinerator flue gas scrubbing;<br />
Liquor<br />
moderate agitation; extensive aeration. 51 days<br />
Naphtha 100 75 24 S - - -<br />
Naphtha, Solvent 96 160-180 71-82 E - - - in vapor space of still column. Some nitrogen oxides possibly evolved.<br />
Naphthalene - 180 82 - G - S organic condensation product<br />
Naphthalene Chloride - 110 43 E - - - production of naphthalene and HCI vapor, in vapor phase.<br />
- 392 200 E - - -<br />
Naphthalene Sulfonic - 180 82 - G - E formaldehyde, condensation product of; Ca(OHh, NaOH, CaS04, Na2S04,<br />
Acid<br />
natural aeration through agitation<br />
Naphthalene Sulfonic - B.P. B.P. E E - - also formaldehyde in condensation reaction.<br />
Acid - 300 149 - E - -<br />
Napthenic Acid - 650-750 343-398 E E - - in distillate from heavy asphalt containing crude oil in flash section of<br />
vacuum tower. Alloy C= 0.1 mpy<br />
Nickel Chloride 10 to B.P. to B.P. E - - -<br />
10 140 60 - E - -<br />
20 to B.P. to B.P. E - - -<br />
30 to B.P. to B.P. E - - -<br />
80 200 93 - E - -<br />
Nickel Chloride 25 554 290 U B - U nickel chloride feed tubes to converters in an Aminco bomb, pH 3.4,<br />
unstressed specimens<br />
Nickel Chloride - 428 220 - S - - nickel carbonyl, nickel hexammine chloride, ammonium carbonate, ammonia,<br />
H2, CO, CO2, CO-C02pressure 2500 psig - specimens metallic-arc<br />
welded and stressed; 243 hrs.<br />
Nickel Nitrate 10 75 24 - S - -<br />
Nickel Plating Bath - 140 60 E - - - chloride type<br />
Nickel Sulfate 0-60 to B.P. to B.P. - S - -<br />
Nitric Acid 1.92M 75 24 U E - U 1.08M hydrofluoric acid, 0.08M hydroxylamine nitrate, O.l1M sulfamic<br />
acid, 0.02 ascorbic acid; welded<br />
Nitric Acid 10 120 49 U G - - plus 2 percent HF for descaling stainless steel products. Alloy C=5 mpy<br />
Nitric Acid 10 Boiling Boiling - G E - 120 hrs., lab test<br />
Nitric Acid 20 Boiling Boiling - B G - 120 hrs., lab test<br />
Nitric Acid 35 185 85 - - E - 2000 ppm chloride ions, 96 hrs.<br />
Nitric Acid 40 Boiling Boiling - U G - 120 hrs., lab test<br />
Nitric Acid 49 177-183 81-84 - - G - 37% phosphate rock, 4% H2SO4<br />
Nitric Acid 50 Boiling Boiling - - G - 1000 ppm chloride ions, 96 hrs.<br />
Nitric Acid 53 177-183 81-84 - - E - 37% phosphate rock, 4% potassium sulfate<br />
E - Less than 2 mpy (0.05 mm/y)<br />
G- 2 mpy (0.05 mm/y) to 10 mpy (0.25 mm/y)<br />
S - Over 10 mpy (0.25 mm/y) to 20 mpy (0.51 mm/y)<br />
B - Over 20 mpy (0.51 mm/y) to 50 mpy (1.27 mm/y)<br />
U - More than 50 mpy (1.27 mm/y)<br />
B.P. - Boiling Point<br />
M - Molar<br />
31