3Cr24Ni7SiNRe heat resistant steel delivers superior high-temperature performance and long service life for extreme thermal industrial environments.
This alloy is designed to maintain stable performance under high temperatures and in harsh environments, providing the following benefits:
The Chemical Composition of 3Cr24Ni7SiNRe Grade Stainless Steel Pipes are as given below:
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.32 ~ 0.42 |
| Manganese (Mn) | ≤ 2.0 |
| Silicon (Si) | 1.45 ~ 2.0 |
| Chromium (Cr) | 24 ~ 26 |
| Nickel (Ni) | 7.2 ~ 8.0 |
| Phosphorus (P) | ≤ 0.03 |
| Sulfur (S) | ≤ 0.03 |
| Nitrogen (N) | 0.20 ~ 0.28 |
| Molybdenum (Mo) | 0.3 ~ 0.7 |
| Cerium (Ce) | 0.2 ~ 0.3 |
During manufacture, the 3Cr24Ni7SiNRE alloy undergoes a complex heat treatment process to ensure optimum performance. Firstly, the alloy undergoes a solid solution treatment at elevated temperatures to promote uniform element distribution and microstructure formation. Next, the alloy undergoes an ageing process to further optimise its microstructure and mechanical properties. The treatment steps ensure the stability and reliability of the alloy at high temperatures.
The 3Cr24Ni7SiNRE alloy has a wide range of applications in the aerospace, energy, chemical and automotive sectors. In aerospace, 3Cr24Ni7SiNRE is used in the manufacture of key components in high performance gas turbine engines, such as the combustion chamber source and collar nozzle, and in the manufacture of high temperature combustors and boiler components. In the chemical industry, the alloy is used in the manufacture of high-temperature reactors and catalytic converters in steam-carrying vehicles. In the chemical industry, 3Cr24Ni7SiNRE alloy is used in the manufacture of exhaust systems and turbocharger components.
