CORROSION RESISTANCE OF HASTEllOY®AllOYS - Haynes ...

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$P:\P25065\H-# Literature\H-2082 - Haynes International, Inc.$

Corrosion Resistance of HASTELLOY®Alloys INDEX Chemical Compositions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Properties Profiles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Alloy Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Available Forms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Comparative Resistance to Various Corrosive Media. . . . . . . . . . . . . . . . . . . . 5 Isocorrosion Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Hydrochloric Acid. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 Nitric Acid 68 Phosphoric Acid. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 Sulfuric Acid , , .. .. . . .. .. .. .. .. . . . . .. .. .. .. .. 74 Corrosion Resistance to: Acetic and Formic Acids. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 Hydrofluoric Acid. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 Chlorine and Hypochlorites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 Salts , , ,. 80 Seawater. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 Localized Corrosion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 Factors for Converting Penetration Rates into Loss of Weight. . . . . . . . . . . 84 Boiling Points vs. Concentration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 Page Corrosion Resistance of HAYNES@ alloy No. 25 and MULTIMET® alloy , .. .. 85 How to Obtain Corrosion Test Samples. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 PROPERTIES DATA - The properties listed in this booklet are average values based on laboratory and field test data from a number of sources. They are indicative only of the results obtained in such tests and should not be considered as guaranteed maximums or minimums. Materials must be tested under actual service conditions to determine their suitability for a particular purpose. All data represent the average of four or less tests unless otherwise noted. The secondary units (metric) used in this booklet are those of the 81 system. © 1980, 1984 by Cabot Corporation 2
COMPARATIVE CHEMICAL COMPOSITIONS, PERCENTt Alloy Ni Co Cr Mo W Fe Si Mn C Others HA8TELLOY® Balance 1.0* 1.0* 26.0- - 2.0* 0.10* 1.0* 0.01* P-0.025* alloy B-2 8-0.010* HA8TELLOY Balance 2.5* 20.0- 12.5- 2.5- 2.0- 0.08* 0.50* 0.015* V-0.35* alloy C-22 22.5 14.5 3.5 6.0 P-0.025* 8-0.010* HA8TELLOY Balance 2.5* 14.5- 15.0- 3.0- 4.0- 0.08* 1.0* 0.01* V-0.35* alloy C-276 16.5 17.0 4.5 7.0 P-0.025* 8-0.010* HA8TELLOY Balance 5.0* 21.0- 6.0- 1.5* 18.0- 1.0* 1.0* 0.015* Cu-1.5-2.5 alloy G-3 23.5 8.0 21.0 Cb + Ta-0.50* P-0.04* 8-0.03* HA8TELLOY Balance 2.0* 29.5 5.0 2.5 15.0 0.8* 1.0* 0.03* Cu-1.7 alloy G-30 Cb + Ta-0.7 P-0.03* 8-0.015* HA8TELLOY Balance 0.5- 20.5- 8.0- 0.20- 17.0- 1.0* 1.0* 0.05- P-0.04*, B-0.008* alloy X 2.5 23.0 10.0 1.0 20.0 0.15 8-0.03*, AI-0.50* Cu-0.50*, Ti-0.15* HAYNE8® 9.0- Balance 19.0- - 14.0- 3.0* 1.0* 1.0- 0.05- P-0.030* alloy No. 25 11.0 21.0 16.0 2.0 0.15 8-0.030* CABOT® Balance 1.0* 20.0- 8.0- - 5.0* 0.50* 0.50* 0.10* Cb + Ta-3.15-4.15 alloy No. 625 23.0 10.0 AI-0.40* Ti-0.40* P-0.015* 8-0.015* MULTIMET~ alloy 19.0- 18.5- 20.0- 2.5- 2.0- Balance 1.0* 1.0- 0.08- Cb + Ta-0.75-1.25 21.0 21.0 22.5 3.5 3.0 2.0 0.16 N-0.10-0.20 'Maximum tThe undiluted deposited chemical compositions of some of these alloys may vary in carbon, silicon, manganese, phosphorous and sulfur content beyond the limits shown. COMPARATIVE AVERAGE PROPERTIES PR<strong>OF</strong>ILE AT ROOM TEMPERATURE - SHEET Yield Ultimate Strength Elongation Alloy Density Tensile at 0.2% in 2 in., Rockwell Ib./in. 3 (g/cm 3 ) Strength, offset, (50.8 mm), Hardness Ksi (MPa) Ksi (MPa) percent HA8TELLOY~ alloy B-2 0.333 (9.22) 132.5 (914) 57.5 (396) 55 B-98 HA8TELLOY alloy C-22 0.314 (8.69) 116.3 (802) 58.5 (403) 57 B-90 HA8TELLOY alloy C-276 0.321 (8.89) 114.9 (792) 51.6 (356) 61 B-90 HA8TELLOY alloy G-3 0.300 (8.30) 99.0 (683) 44.0 (303) 53 B-83 HA8TELLOY alloy G-30 0.297 (8.22) 100 (690) 47 (324) 56 B-88 HA8TELLOY alloy X 0.297 (8.22) 109.5 (755) 55.9 (385) 45 B-92 HAYN E8l!ll alloy No. 25 0.330 (9.13) 140.6 (969) 64.6 (445) 62 C-24 CABOT~ alloy No. 625 0.305 (8.44) 132.0 (910) 67.9 (468) 47 B-94 MULTIMETllll alloy 0.296 (8.19) 118.1 (814) 58.0 (400) 49 B-92 3
Page 1: OUR NEW NAME Haynes International,
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Type 316 Concen- Temperature HASTEL
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Type 316 Concen- Temperature HASTEl
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( Type 316 Concen- Temperature HAST
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ISOCORROSION DIAGRAMS· HASTELLOY®
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ISOCORROSION DIAGRAMS* HASTELLOY®
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ISOCORROSION DIAGRAMS· r HASTELLOY
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PHOSPHORIC ACID ISOCORROSION DIAGRA
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ISOCORROSION DIAGRAMS· HASTELLOY®
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ACETIC AND FORMIC ACIDS Acetic and
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EFFECT OF TEMPERATURE ON PITTING RE
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CREVICE-CORROSION DATA IN 10% FERRI
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CORROSION RESISTANCE OF HAYNES® AL
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TYPICAL PENETRATION RATES IN CORROS
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