- Inconel 825 Sheets and Plates
Inconel 825 Sheets and Plates
Inconel 825 is a nickel, chromium and iron alloy with additions of molybdenum, copper and titanium which gives exceptional resistance to many corrosive environments. Titanium oxide is formed in Inconel 825 & it provides resistance to localized attacks like pitting & crevice corrosion.
Chemical Properties
GRADE | Cr | Cu | Mo | Co | Al | Ti | C | Fe | Mn | Si | P | S | Ni | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
INCONEL 825 | MIN | 19.5 | 1.5 | 2.5 | – | – | 0.6 | – | 22 | – | – | – | – | 38 |
MAX | 23.5 | 3 | 3.5 | 1 | 0.2 | 1.2 | 0.05 | – | 1 | 0.5 | 0.015 | 0.03 | 46 |
Properties
The levels of copper and molybdenum enable Inconel 825 sheet and Inconel 825 plate to resist reducing acids and its agents. Chemical configuration of these Alloy 825 Plates and sheet offer great resistance to several corrosive atmospheres, such as crevice corrosion, pitting, stress – corrosion cracking and inter – granular corrosion.
Mechanical properties
Grade | Tensile Strength | Yield Strength | Elongation |
|---|---|---|---|
[MPA] | [MPA] | (% in 50mm) min | |
Inconel 825 | 586 | 241 | 30 |
Alloy 825 has excellent resistance in chloride medium also used in various applications requiring a combination of high strength and corrosion resistance. Alloy 825 is good in media as diverse as sulphuric, sulphurous, phosphoric, nitric and organic acids, alkalis such as sodium or potassium hydroxide, and acidic chloride solutions.
Physical Properties
Grade | Density (g/cm3) | Melting Point °C | Elastic Modulus (GPa) | Co-eff of Thermal Expansion (μm/m/°C) | Thermal Conductivity (W/m.K) | Electrical Resistivity (μΩ.m) |
|---|---|---|---|---|---|---|
27-93°C | ||||||
Inoloy 825 | 8.14 | 1385 | 193 | 14 | 11.1 | 1.13 |
Alloy 825 sheets are used in chemical process vessels, catalytic converters, nuclear fuel reprocessing, radioactive waste handling, and marine exhaust. It is similar to SS 800 but has improved resistance to aqueous corrosion. It also has good resistance in neutral chloride media, stress-corrosion cracking and satisfactory resistance to pitting and crevice corrosion.
Specification
The Incoloy 825 alloy sheet and plate or UNS N08825 specified by ASTM standard as ASTM B 424 or ASME SB-424 are readily available in different types such as, for example, Incoloy 825 Plane sheet and Plate, Shim, Thin, Perforated, Polished, Diamond, Chequered, Hot rolled, Cold rolled, Annealed, Soft annealed , coils, clad plate, strip etc. However, the Inconel 825 plate price may vary according to different specifications.
As per availability and requirement Alloy 825 Sheets and Plate can be manufactured in different types burt, also they also have different types of finishing on surface such as for example, Brushed ,Polished t, Mirror finish, Mirror polished, Hot rolled(HR), Cold rolled (CR), 2B,2D, BA NO(8), SATIN(Met with Plastic coated).
Applications
- Components such as heating coils, tanks, crates, baskets and chains in sulphuric acid pickling plants
- Fuel element dissolvers
- Sea-water-cooled heat exchangers, offshore product piping systems; tubes and components in sour gas service
- Heat exchangers, evaporators, scrubbers, dip pipes etc. in phosphoric acid production
- Air-cooled heat exchangers in petroleum refineries
- Food processing
- Chemical plant
- Combustion-resistant alloy for high pressure O2 applications