Incoloy 825 – Incoloy 825 Nickel-Chromium Alloy
Incoloy 825 – Nickel-Chromium Alloy
Incoloy 825 is a Nickel-Iron-Chromium alloy with additions of Molybdenum and Copper. It has excellent resistance to both reducing and oxidising acids, to stress-corrosion cracking and to localised pitting and crevice corrosion. It is also especially resistant to sulphuric and phosphoric acids.
Chemical Composition of Incoloy 825
The compositional range for Incoloy 825 is provided in the table below.
Element |
Content |
Ni |
38 - 46 % |
Fe |
22 % min |
Cr |
19.5 - 23.5% |
Mo |
2.5 - 3.5 % |
Cu |
1.5 3 % |
Ti |
0.6 - 1.2 % |
Provide all grade of these alloy by different shape & size is Our expertise
For any inquiry & request, don't hesitate to contact us
Typical Properties of Incoloy 825
Typical properties of Incoloy 825 are covered in the following table.
Property |
Metric |
Imperial |
Density |
8.14 g/cm3 |
0.294 lb/in3 |
Melting point |
1400°C |
2550°F |
Co-Efficient of Expansion |
14.0 µm/m.°C |
7.8x10-6 in/in.°F |
Modulus of rigidity |
75.9 kN/mm2 |
11009 ksi |
Modulus of elasticity |
196 kN/mm2 |
28428 ksi |
Properties of Supplied Materials and Heat Treated Materials
Condition of Supply |
Heat Treatment (After Forming) |
|||
Spring Temper/Spring Temper |
Stress relieve at 450 - 470°C (840 - 880°F) for 30-60 minutes and air cool. |
|||
Condition |
Approx Tensile Strength |
Approx Service Temp. |
||
Annealed |
600 - 800 N/mm2 |
87 -116 ksi |
-100° to +250°C |
-145° to +480°F |
Spring Temper |
800 - 1000 N/mm2 |
116 - 159 ksi |
-100° to +250°C |
-145° to +480°F |
Relevant Standards
Incoloy 825 is covered by the following standards:
- BS 3076 NA 16
- ASTM B425
Equivalent Materials
Incoloy 825 is the tradename of Special Metals Group of Companies and equivalent to:
- NR 2.4858
- UNS N08825
- AWS 022
Applications of Incoloy 825
Incoloy 825 typically finds application in:
- Chemical Processing
- Nuclear Fuel Reprocessing
- Acid Production
- Pickling Equipment
Provide all grade of these alloy by different shape & size is Our expertise
For any inquiry & request, don't hesitate to contact us
Availability: |
|
|
|
Incoloy 825 Plate |
Incoloy 825 Fittings |
Incoloy 825 Tube / Pipe |
|
|
|
|
|
Incoloy 825 Bar |
Incoloy 825 Sheet |
Incoloy 825 Coil /Strap |
|
|
|
|
|
Incoloy 825 Fasteners / Flanges |
Incoloy 825 Powder |
Incoloy 825 Welding Product |
|
|
|
|
|
Nickel Alloy 825/ Incoloy 825®
Technical Data Sheet
Chemical Composition Limits |
|||||||||||
Weight % |
Ni |
Fe |
Cr |
Mo |
Cu |
Ti |
C |
Mn |
S |
Si |
Al |
Alloy 825 |
38 - 46 |
22 min |
19.5 - 23.5 |
2.5 - 3.5 |
1.5 - 3 |
0.6 - 1.2 |
0.05 max |
1 max |
0.03 max |
0.5 max |
0.2 max |
Alloy 825 is a nickel-iron-chromium alloy with additions of molybdenum and copper. It has excellent resistance to both reducing and oxidizing acids, to stress-corrosion cracking, and to localised attack such as pitting and crevice corrosion. Alloy 825 is especially resistant to sulphuric and phosphoric acid. Alloy 825 is used for chemical processing, pollution control equipment, oil and gas well piping, nuclear fuel reprocessing, acid production and pickling equipment and handling of radioactive wastes.
Typical 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 |
Provide all grade of these alloy by different shape & size is Our expertise
For any inquiry & request, don't hesitate to contact us
Specifications
UNS N08825
WS 2.458
FMC Spec M41104, M40116, M40154
NACE MR-0175/ISO 15156
Alloy 825 Sheet, Strip and Plate
BS3072 NA16
BS 3073 NA16
ASTM B 424
ASTM B 906
ASME SB 424
ASME SB 906
DIN 17750
VdTUV 432
Alloy 825 Pipe and Tube
BS 3074 NA16
ASTM B163, ASME SB 163
ASTM B 423, ASME SB 423
ASTM B704, ASME SB 704
ASTM B 705, ASME SB 705
ASTM B 751, ASME SB 751
ASTM B 755, ASME SB 755
ASTM B 829, ASME SB 829
DIN 17751, VdTUV 432
Alloy 825 Rod, Bars, Forgings
BS 3076 NA16
ASTM B 425
ASTM B 564
ASME SB 425
ASME SB 564
ASME Code Case N-572
DIN 17752, DIN 17753, DIN 17754
VdTUV 432
Other Similar Specifications
ASTM B366
ASME SB 366
DIN 17744
Provide all grade of these alloy by different shape & size is Our expertise
For any inquiry & request, don't hesitate to contact us
Disclaimer
Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.