Incoloy 825 Round Bars
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Grades
Incoloy 825 Round Bars
Incoloy 825 is a nickel-iron-chromium alloy with additional elements such as copper, molybdenum, and titanium. It is renowned for its exceptional corrosion resistance, making it a valuable material for various industrial applications, especially in aggressive chemical and high-temperature environments.
Apart from nickel, the additions of metals like molybdenum and copper enable the Incoloy 825 Rods to resist reductive containing agents and acids. Chromium in the ASTM B425 Gr 825 offers resistance to oxidising conditions, such as nitric acid solutions, nitrates and oxidising salts. The alloy is stabilised by the addition of titanium .Stabilizing the Incoloy 825 Bar is known to resist pitting and intergranular attack that could take place after fabrication. This also includes welding, during which, the Alloy 825 Round Bar reaches a the critical sensitisation temperature range between 650°C – 760°C, when the alloy is heated.
The ASTM B425 UNS N08825 offers exceptional resistance to corrosion from acids like sulphuric and phosphoric acids. The alloy is often, considered to be one of the most cost effective alloys in sulphuric acid service.Inconel 825 Round Bar has been approved for use in pressure vessel that operate in temperatures up to 525°C. Brittle phases may form in Incoloy 825 at temperatures above the range of 540°C. Therefore, it is not normally used in applications at these temperatures as well as higher temperatures, where creep rupture properties of the alloy would be design factors.
Applications of the Incoloy 825 Round Bar includes, Sulphuric acid piping and vessels, Pickling tank heaters, pickling tanks and equipment, Phosphoric acid evaporators, Chemical process equipment, Propellor shafts, Ammonium sulphate vessels, Calorifiers, Tank trucks, Electrostatic precipitator electrodes, Expansion bellows, Marine exhaust systems, Power station ash hoppers, Hot vessels for food, water and seawater.
Specifications
- Incoloy 825 Round Bars:
- Incoloy 825 round bars are widely used in industries where corrosion resistance is critical, such as chemical processing, petrochemical, and marine applications.
- These round bars offer excellent resistance to various corrosive substances, including sulfuric acid, phosphoric acid, and seawater.
- Incoloy 825 round bars are available in different diameters and lengths to meet specific project requirements.
Incoloy 825 is highly regarded for its ability to resist both reducing and oxidizing acids, stress-corrosion cracking, and maintain good mechanical properties at elevated temperatures. These round bars are employed in applications where corrosion is a major concern, and their selection depends on the corrosive environment and the required performance characteristics for a specific application. This ensures the longevity and effectiveness of the materials in the given environment.
size range
Diameter – 8mm – 250mm
Length – Upto 6000mm
Material Certification and Traceability
At Satyam Overseas, we prioritize Material Certification and Traceability. Our materials, meeting ASTM and ASME standards, come with 3.1 Mill Test Certificates as a guarantee of compliance. Additionally, upon request, we provide 3.2 Mill Test Certificates for added assurance. Every material is clearly marked and accompanied by a corresponding certificate, meticulously linking markings to certification. This meticulous approach ensures complete accountability and unwavering reliability throughout our supply chain.
Chemical Composition
| Ni | Fe | Cr | Mo | Cr | Ti | C | Mn | S | Si | |
|---|---|---|---|---|---|---|---|---|---|---|
|
Min |
38 |
20 |
19.5 |
2.5 |
|
0.6 |
|
|
|
|
|
Max |
46 |
38 |
23.5 |
3.5 |
1 |
1.2 |
0.025 |
1 |
0.015 |
0.5 |
Physical Composition
| Density | Melting range | Relative magnetic permeability at 20 °C (68 °F) |
|---|---|---|
|
8.14 g/cm3 (0.294 lb/in3 ) |
1,370-1,400 °C (2,500-2,550 °F) |
1.005 (Maximum)
|
Designations & Standards
| Forms | ASTM | ASME | DIN |
|---|---|---|---|
|
Rod bar |
B 425 B 564 |
SB 425 SB 564 |
17744 17752 |