Incoloy 825 Round bar Manufacturer and exporter
Incoloy 825 / Alloy 825 / UNS N08825/ W.Nr. 2.4858 is a nickel-iron-chromium alloy with additions of molybdenum, copper, and titanium.
The nickel content is sufficient for resistance to chloride-ion stress-corrosion cracking. The nickel, in conjunction with the molybdenum and copper, also gives outstanding resistance to reducing environments such as those containing sulfuric and phosphoric acids.
The molybdenum also aids resistance to pitting and crevice corrosion. The alloy’s chromium content confers resistance to a variety of oxidizing substances such as nitric acid, nitrates and oxidizing salt.
The titanium addition serves, with an appropriate heat treatment, to stabilize the alloy against sensitization to intergranular corrosion.
The resistance of INCOLOY alloy 825 to general and localized corrosion under diverse conditions gives the alloy broad usefulness. Applications include chemical processing, pollution control, oil and gas recovery, acid production, pickling operations, nuclear fuel reprocessing, and handling of radioactive wastes.
Our N08825 round bar produce according to ASTM B425
ASTM B425-19 Standard Specification for Nickel-Iron-Chromium-Molybdenum-Copper Alloys Rod and Bar
This specification covers nickel-iron-chromiummolybdenum-copper alloy (UNS N08825 and UNS N08221) in the form of hot-finished and cold-drawn rounds, squares, hexagons, and rectangles.
Chemical Composition of UNS N08825,according to ASTM B425 standard.
| Element | % |
| Nickel | 38.0-46.0 |
| Chromium | 19.5-23.5 |
| Molybdenum | 2.5-3.5 |
| Copper | 1.5-3.0 |
| Titanium | 0.6-1.2 |
| Iron | 22.0 min (~33%) |
| Carbon | 0.05 max |
| Manganese | 1.0 max |
| Sulphur | 0.03 max |
| Silicon | 0.5 max |
| Aluminium | 0.2 max |
UNS N08825 Mechanical Property As per SB425 Standard
Physical property
Density, lb/in3
……………………………………………………………0.294
Mg/m3 …………………………………………………………..8.14
Melting Range, °F ……………………………………………..2500-2550
°C ……………………………………………..1370-1400
Specific Heat, Btu/lb•°F …………………………………………….0.105
J/kg•°C …………………………………………………440
Curie Temperature, °F……………………………………………….<-320
°C ………………………………………………<-196
Permeability at 200 oersted (15.9 kA/m)………………………1.005
Why Incoloy 825?
INCOLOY alloy 825 has good impact strength at room temperature and retains its strength at cryogenic temperatures.
Incoloy 825 offers excellent resistance to:
- Sulfuric acid and phosphoric acid.
- Stress-corrosion cracking and pitting.
- Reducing acids and chloride environments.
- Oxidizing media and corrosive gases.
Incoloy 825 round bars Sizes Range
Incoloy 825 round bars are commonly available in:
- Diameters: 6mm – 250mm (or custom sizes).
- Length: Standard 3m, 6m, or custom lengths.
- Heat Treatment: Solution-treated (Annealed) to ensure uniform properties and resistance.
Other N08825 Materials are also Available
N08825 Pipe and Tube ASTM B 163, ASTM B 423
ASTM B564 N08825 Flanges