ASTM Standards:
ASTM B622: For seamless pipes.
ASTM B619/B626: For welded pipes.
ASTM B574: For bars and round bars.
ASTM B564: For forgings and flanged valve bodies.
Chemical Composition (Weight Percent):
- Nickel (Ni): Balance (Balance) - Chromium (Cr): 14.5 - 16.5% - Molybdenum (Mo): 15.0 - 17.0% - Iron (Fe): 4.0 - 7.0% - Tungsten (W): 3.0 - 4.5% - Carbon (C): 0.01% max - Silicon (Si): 0.08% max - Manganese (Mn): 1.0% max - Phosphorus (P): 0.040% max - Sulfur (S): 0.030% max
Physical Properties:
1. Density: Approximately 8.89 g/cm³.
2. Melting point: in the range of 1325-1370°C.
3. Thermal expansion coefficient: in the range of 20-100°C, the average linear expansion rate is about 12.2 μm/m·℃ to 15.3 μm/m·℃.
4. Resistivity: about 1.29 μΩ·m at room temperature (RT).
5. Thermal conductivity: about 10.8 W/(m·K) at 25°C.
6. Specific heat capacity: about 436 J/kg·K at 25°C.
7. Thermal diffusivity: about 2.8×10^-6 m²/s at 25°C.
Mechanical properties:
1. 0.2% yield strength: about 283 MPa.
2. Tensile strength: about 690 MPa.
3. Elongation: at least 40% on the cross section.
4. Hardness: At room temperature, the hardness usually does not exceed 100 HRB (Rockwell B scale).
The following are some special uses of N10276 alloy:
1. Chemical and petrochemical industries:
- N10276 alloy is used in the chemical and petrochemical industries to manufacture corrosion-resistant equipment such as reactors, heat exchangers, separators and storage tanks, especially in environments that handle highly corrosive chemicals.
2. Flue gas desulfurization (FGD) system:
- In the flue gas desulfurization system, N10276 alloy is used to manufacture scrubbers, reheaters and other key components that work in acidic gas environments.
3. Pulp and paper industry:
- N10276 alloy is used for bleaching equipment and other key components in the pulp and paper industry that work in high temperatures and corrosive chemicals.
4. Marine applications:
- Due to its excellent corrosion resistance, N10276 alloy is used in marine engineering to manufacture seawater treatment equipment, offshore platform equipment and ship components.
5. Nuclear Industry:
- N10276 alloy is used in the nuclear industry to manufacture fuel rod cladding and other high temperature components that operate in radiation and corrosive environments.
