CORROSION RESISTANCE OF HASTEllOY®AllOYS - Haynes ...

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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 Sodium Chloride - 255 124 - E - - saturated brine (NaCI). containing 10% NaCI in suspension and 20 gil CaSO]. pH 6.5 Brine purification - salt production Aeration - 1.5 ppm O~ Agitation - 6 ft./sec. Total days - 33 Sodium Chloride - 258·260 126·127 - E - - saturated brine (NaC!), aeration Sodium Chloride - 265 129 - E E - saturated with 5·15% suspended NaCI solids plus some suspended CaS04, pH 7.5·8.0, moderate aeration Sodium Chloride - 265 129 - E - - saturated sodium chloride solution with 5·15% suspended NaCI solids plus some suspended CaS04, pH 7.5·8.0, moderate aeration Sodium Chloride - 522 272 - E - - in rotary kiln drier. Alloy C=0.2 mpy Sodium Chlorite 10 75 24 - S - - Sodium Dialkyl - 41·96 5·36 - E - - in oxidation reactor during production of tetra alkyl thiuram disulfide, Orthocarbonate liquid phase plus NaNO], HCI, NaCI, HNO~. Alloy C=0.02 mpy Sodium Ferricyanide 10 75 24 S - - - Sodium Flormaldehyde 25·60 176 80 E E - - in preconcentrator, Alloy C=0.006 mpy Sulfoxylate Liquor Sodium Fluoride 10 75 24 S - - - Sodium Fluosilicate - 80·110 27-43 G - - - 96 percent air, 3 percent H~O, 0.06 percent HCI, sodium fluosilicate in Dust rotary drier Sodium Fluosilicate - 130 54 - E - - in reaction tank with turbine agitator. Alloy C= 1.6 mpy Slurry Sodium Glutamate, Mono - 68·140 20·60 E - - - saturated with NaCI at pH of 5.0·6.4 Sodium Glutamate, Mono - 75 24 E - - - saturated with NaCI at a pH of 5 to 6.4 Sodium Hydrosulfide 5·12 230 110 E E - - plus sodium sulfide and polysulfides as impurities in unknown amounts Sodium Hydroxide 1.5M 323 162 - G G B oxygenated, 7 hours, extensive aeration Pulp Digester Liquor Sodium Hydroxide 2·3 110 43 E E - E organic intermediate aluminum salts; pyridine, water Sodium Hydroxide 2·3 102 83 - E E E water, ethanol and other fermentation products (esters, organic acids, fuel oil, carbon dioxide), sodium carbonate 1%, sulfur dioxide; pH nor· mally 10 to 11. Cleaned occasionally with 4·8% acetic acid. Sodium Hydroxide 10·15 90 32 - E E E plus NaCI and Na~CO] Duration - 150 days Aeration - moderate Agitation - normal flow Type of test - field Process involved - reaction of HCI and COCI~ with NaOH Sodium Hydroxide 10 Room Room - E - - 40 Room Room - E - - Sodium Hydroxide 15 to 230 to 110 S B - - plus monochlortoluene saturated with approx. 2 percent each of HCI and CI~. Alloy C=23 mpy Sodium Hydroxide - 90 32 - S - - 10 to 15% NaOH, NaCI and Na~CO]. HCI, COCI~, moderate aeration Sodium Hydroxide - 100 38 - E - - plus cresylic acid. Alloy C=0.5 mpy Sodium Hydroxide - 160 71 - E - E dilute, chromate and chromic wastes, chlorides, all low concentrations Sodium Hypochlorite 0.5 95 35 - E - - Dakin's solution. Alloy C=0.1 mpy 0.5 140 60 - E - - 0.5 212 100 - E - - Sodium Hypochlorite 1 140 60 - G - - Alloy C=4.8 mpy Sodium Hypochlorite 1·2 70 21 - E - E plus unidentified components. pH near 7 Sodium Hypochlorite 5 65 18 - E - - bottom of bleach make·up tank. Alloy C
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 Sodium Hypochlorite to 16 60-80 16-27 - E - - plus NaOH and C12. Alloy C= 0.1 mpy Sodium Hypochlorite - Room Room - E - - plus sodium silicate inhibitor. Alloy C= nil mpy Sodium Hypochlorite - 80 27 U B - - HCI, vent scrubber, 29 days Sodium Hypochlorite - 85-115 29-46 - E - - plus 6 percent C12, 45 percent H 2 S04and sulfate turpentine oil Sodium Hypochorite - 90 32 U* E E G excess caustic soda. NaOCI concentration 94.3-110.6 grams/liter. Excess NaOH 6-21 grams/liter. *Specimen corroded away or was lost, aeration at surface Sodium Hypochlorite - 212 100 - E - - in wash tank for cellphane film with up to 1 percent NaCI. Alloy C
Page 1 and 2: OUR NEW NAME Haynes International,
Page 3 and 4: COMPARATIVE CHEMICAL COMPOSITIONS,
Page 5 and 6: 'A~0~A~~ Alloy / q,~ "'.>~~~Cfj 0.5
Page 7 and 8: Type 316 Concen- Temperature HASTEL
Page 9 and 10: Type 316 Concen- Temperature HASTEl
Page 43 and 44: Type 316 Coneen- Temperature HASTEl
Page 47: Type 316 Concen- Temperature HASTEL
Page 61 and 62: ( Type 316 Concen- Temperature HAST
Page 63 and 64: ISOCORROSION DIAGRAMS· HASTELLOY®
Page 65 and 66: ISOCORROSION DIAGRAMS* HASTELLOY®
Page 69 and 70: ISOCORROSION DIAGRAMS· r HASTELLOY
Page 71 and 72: PHOSPHORIC ACID ISOCORROSION DIAGRA
Page 75 and 76: ISOCORROSION DIAGRAMS· HASTELLOY®
Page 79 and 80: ACETIC AND FORMIC ACIDS Acetic and
Page 81 and 82: EFFECT OF TEMPERATURE ON PITTING RE
Page 83 and 84: CREVICE-CORROSION DATA IN 10% FERRI
Page 85 and 86: CORROSION RESISTANCE OF HAYNES® AL
Page 87 and 88: TYPICAL PENETRATION RATES IN CORROS

CORROSION RESISTANCE OF HASTEllOY®AllOYS - Haynes ...

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