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 />
Nitric Acid 63 120 49 - E - G 15% by wt. (20% by vol.) 40° Beor 2% sodium dichromate (dihydrate)<br />
Nitric Acid 65 150 66 - S E - 120 hrs., lab test<br />
Nitric Acid 65 Boiling Boiling - U B - 120 hrs., lab test<br />
Nitric Acid 72 177-183 81-84 - - E - 6% H2SO 4<br />
Nitric Acid Mix 25 177-183 81-84 - - E - 25% phosphate rock, 24% H J P0 4 , 4% H2SO 4<br />
Nitric·Sulfuric - 365 185 - B - B 20% by vol. of 50% H2S0 4 - 50% HNO J added to H20 and heated to 200<br />
Acid Mixtures deg. Cfor 18 hrs. then cooled and later dried at 170 deg. Cin 10% C102.<br />
Nitric-Sulfuric - 365 185 - B - U 20% by vol. of 50% H2S0 4 , 50% HNO J added to H20 and heated to 200<br />
Acid Mixtures<br />
deg. Cfor 18 hrs. then cooled and exposed in 16.5% NaOCI at 170 deg. C<br />
Nitric·Sulfuric - 392 200 - B - B 20% by vol. of 50% H2S0 4 - 50% HNO J added to H20 and heated to 200<br />
Acid Mixtures deg. Cfor 18 hrs. then cooled and exposed in 20% by vol. of 50% HNO J -<br />
50% HCI0 4 added to H20 and heated to 200 deg. C for 12 hrs.<br />
Nitriding Gases All 1000 538 E E - -<br />
Nitrobenzene 85 212 100 U G - - plus chlora-beta methyl Quinone, copper chloride, 5 percent HCI in stripping<br />
nitrobenzene from organic solution. Alloy C = 2.6 mpy<br />
Nitrosyl Chloride - Room Room - G - - during production from reaction of HCI, nitrous oxide, and isopropyl<br />
alcohol, Alloy C= 2.5 mpy<br />
Nitrous Oxide 10 780 416 E E E E corrosion rack test (in plant). balance 02, H20, N2<br />
Nonylphenol 60-75 340 171 G G - U dinonylphenol 0.6%, water 0.1% max., nonyl and dinonylphenol suliide<br />
67-73% and process oil 25%, hydrogen chloride a few percent. (Compositions<br />
of liquid phases)<br />
Oil-Water Emulsion - 75 24 - - E E containing dilute sulfuric acid (pH 1.8) and possibly some carbon dioxide,<br />
90 days, moderate aeration<br />
Oleic Acid 100 to B.P. to B.P. S - - -<br />
Oleum 20 125 52 E - - - 1.32 parts to one part dodecyl benzene and S02<br />
Oleum - 20 125·150 52·66 E - - - vapors plus pyridine vapors in sulfonation of pyridine.<br />
Oleum 20 125-150 52-66 B - - - plus pyridine and 2.5 percent water in sulfonation of pyridine.<br />
Oleum 25 50·90 10·32 E E - - in detergent manufacture. Alloy C= 0.1 mpy<br />
Oleum 40 to 140 to 60 - E - - plus 4 percent HNO J<br />
Oleum 75-120 86·248 30·120 - - G - 25 to 98% HNO J , trace HF<br />
Orange Juice - 100·125 38·52 - E - - with pectin liquor<br />
Organic Chlorides All to B.P. to B.P. S - - -<br />
Orthoformyl Benzene· 6.75 85 29 E E - E<br />
sulfonic Acid<br />
Oxalic Acid 10 Boiling Boiling - G - -<br />
Oxalic Acid 20 110 43 - E - - to which is added 93% H2S0 4 (approx. 10% when diluted). pH less than 1,<br />
plus calcium oxalate and calcium sulfate, moderate aeration<br />
Oxalic Acid 45 140 60 - E - E slurry, 35% sulfuric acid, calcium oxalate, calcium sulfate, pH 1,<br />
moderate aeration<br />
Oxalic Acid Satr. Soln. B.P. B.P. G S - -<br />
Oxalic Acid All to B.P. to B.P. S S - -<br />
Oxalic Acid - 140 60 S E E E slurry, 35% sulfuric acid, calcium oxalate, calcium sulfate, pH 1,<br />
moderate aeration<br />
Oxidizing Gases 100 to 1800 to 982 - E - -<br />
Paper, Acid Pulping - 285 141 - G - E cooking liquors: acid sulfite, sodium base; alkaline, Kraft<br />
Paper, Alkaline Pulping 1.5M 323 162 - G - B oxygenated sodium hydroxide pulp digester liquor, extensive aeration<br />
Cooking liquor<br />
Paper Bleaching 1 114 46 - E - E 0.01% chlorine. trace chlorine dioxide. pH 5.5 to 6.0, moderate aeration<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 />
32