Spezilla Tube Co., Ltd. (Shanghai)
Spezilla Tube Co., Ltd. Excellence in Stainless Steel Tubing
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Pollution control Nickel Alloy Tube , UNS N08825 ASTM B163 Alloy 825 Tubing
Description:
Incoloy 825 is a nickel-iron-chromium alloy with additions of molybdenum and copper. This nickel steel alloy’s chemical composition is designed to provide exceptional resistance to many corrosive environments. It is similar to alloy 800 but has improved resistance to aqueous corrosion. It has excellent resistance to both reducing and oxidizing acids, to stress-corrosion cracking, and to localized attack such as pitting and crevice corrosion. Alloy 825 is especially resistant to sulfuric and phosphoric acids. This nickel steel alloy is used for chemical processing, pollution-control equipment, oil and gas well piping, nuclear fuel reprocessing, acid production, and pickling equipment.
Characteristics:
Excellent resistance to reducing and oxidizing acids
Good resistance to stress-corrosion cracking
Satisfactory resistance to localized attack like pitting and crevice corrosion
Very resistant to sulfuric and phosphoric acids
Good mechanical properties at both room and elevated temperatures up to approximately 1020° F
Permission for pressure-vessel use at wall temperatures up to 800°F
Specifications:
Sheet/Plate | ASTM B424, BS 3072NA16, BS 3073NA16, ASTM B906, DIN 17750, ISO 6208, VdTüV 432 |
Round Bar/Wire | ASTM B425, BS 3076NA16, DIN 17752, DIN 17753, DIN 17754, ISO 9723, ISO 9724, ISO 9725, VdTüV 432 |
Pipe & Tube | ASTM B423, ASTM B829, ASTM B705, ASTM B775, ASTM B163, ASTM B704, ASTM B751, DIN 17751, ISO 6207, VdTüV 432 |
Fittings | ASTM B366, DIN 17744 |
Forgings | ASTM B564 |
Weld Wire | AWS A5.14 ERNiFeCr-1, AWS A5.14 ERNiCrMo-3, AWS A5.11 ENiCrMo-3 |
Chemical Composotion:
C | .05 max |
| MN | 1.0 max |
| P | |
| S | .03 max |
Si | .5 max |
Cr | 19.5 - 23.5 |
Ni | 38.0 - 46.0 |
Mo | 2.5 - 3.5 |
Cu | 1.5 - 3.0 |
Co | |
| Cb+Ta | |
Ti | 0.6 - 1.2 |
Al | 0.2 max |
Fe | 22.0 min |
Mechanical Properties:
| Material | Form and Condition | Tensile Strength MPa | Yield Strength (0.2% Offset) MPa | Elongation (%) |
| Alloy 825 Tube | Annealed | 772 | 441 | 36 |
| Alloy 825 Tube | Cold Drawn | 1000 | 889 | 15 |
| Alloy 825 Bar | Annealed | 690 | 324 | 45 |
| Alloy 825 Plate | Annealed | 662 | 338 | 45 |
| Alloy 825 Sheet | Annealed | 758 | 421 | 39 |
Applications:
Chemical Processing
Pollution-control
Oil and gas well piping
Nuclear fuel reprocessing
Components in Pickling equipment like heating coils, tanks, baskets and chains
Acid production
