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BSW NA16 Nut
QS Fastener: BSW NA16 Nut
Name: BSW NA16 Nut
Material: Incoloy 825
Standard: BSW, DIN, ASTM, NF
Size: 5/8 inch
Hardness: Max. 200 HB
Feature: Good resistance to stress corrosion cracking
Application: For Industrial areas where the temperature does not exceed 550 degrees Celsius
Material: Incoloy 825
Standard: BSW, DIN, ASTM, NF
Size: 5/8 inch
Hardness: Max. 200 HB
Feature: Good resistance to stress corrosion cracking
Application: For Industrial areas where the temperature does not exceed 550 degrees Celsius
Quantity
The BSW NA16 Nut is manufactured from high-performance Incoloy 825 material, offering exceptional resistance to stress corrosion cracking. Available in standards such as BSW, DIN, ASTM, and NF, it comes in a size of 5/8 inches with a hardness not exceeding 200 HB, ensuring stable operation at temperatures up to 550°C. Its excellent corrosion resistance and mechanical properties make it an ideal choice for applications in the chemical, petroleum, natural gas, and high-temperature industrial sectors. Whether in highly corrosive environments or long-term high-temperature operations, the BSW NA16 Nut provides reliable connection solutions, ensuring efficient and safe equipment operation.
Incoloy 825, a nickel-based alloy, exhibits outstanding mechanical properties and oxidation resistance at high temperatures, making it an ideal material for high-temperature applications. The BSW NA16 Nut is precisely engineered from this high-performance material, providing reliable solutions for fastening needs in extreme environments.
1. Material Characteristics and High-Temperature Performance Mechanisms
The high-temperature performance of the BSW NA16 Nut is primarily attributed to its high content of nickel, chromium, and molybdenum, as well as the stabilizing effect of titanium:
Nickel (Ni): Provides strength and stability at high temperatures, preventing high-temperature embrittlement.
Chromium (Cr): Forms a dense Cr₂O₃ oxide film, offering protection against high-temperature oxidation.
Molybdenum (Mo): Enhances high-temperature strength and creep resistance.
The high-temperature performance of the BSW NA16 Nut is primarily attributed to its high content of nickel, chromium, and molybdenum, as well as the stabilizing effect of titanium:
Nickel (Ni): Provides strength and stability at high temperatures, preventing high-temperature embrittlement.
Chromium (Cr): Forms a dense Cr₂O₃ oxide film, offering protection against high-temperature oxidation.
Molybdenum (Mo): Enhances high-temperature strength and creep resistance.
Titanium (Ti): Prevents intergranular corrosion and phase transformation at high temperatures through stabilization treatment.
The BSW NA16 Nut optimizes the proportions of these elements to ensure long-term stability in high-temperature and corrosive environments.
2. High-Temperature Mechanical Properties
The BSW NA16 Nut maintains excellent mechanical properties at high temperatures, with the following data:
Tensile Strength:
Room Temperature: ≥586 MPa.
500°C: ≥520 MPa.
700°C: ≥450 MPa.
The BSW NA16 Nut maintains excellent mechanical properties at high temperatures, with the following data:
Tensile Strength:
Room Temperature: ≥586 MPa.
500°C: ≥520 MPa.
700°C: ≥450 MPa.
Yield Strength:
Room Temperature: ≥241 MPa.
500°C: ≥220 MPa.
700°C: ≥200 MPa.
Room Temperature: ≥241 MPa.
500°C: ≥220 MPa.
700°C: ≥200 MPa.
Elongation:
Room Temperature: ≥30%.
500°C: ≥25%.
700°C: ≥20%.
Room Temperature: ≥30%.
500°C: ≥25%.
700°C: ≥20%.
Creep Performance:
At 600°C and 100 MPa stress, creep deformation <0.1% after 1000 hours.
At 700°C and 50 MPa stress, creep deformation <0.2% after 1000 hours.
At 600°C and 100 MPa stress, creep deformation <0.1% after 1000 hours.
At 700°C and 50 MPa stress, creep deformation <0.2% after 1000 hours.
The BSW NA16 Nut excels in high-temperature environments, ensuring long-term stable operation of equipment under extreme temperature conditions.
3. High-Temperature Oxidation Resistance
Incoloy 825 exhibits excellent oxidation resistance at high temperatures, with the following data:
Oxidation Rate:
In air at 800°C, weight gain <0.1 mg/cm² after 1000 hours.
In air at 900°C, weight gain <0.3 mg/cm² after 1000 hours.
Incoloy 825 exhibits excellent oxidation resistance at high temperatures, with the following data:
Oxidation Rate:
In air at 800°C, weight gain <0.1 mg/cm² after 1000 hours.
In air at 900°C, weight gain <0.3 mg/cm² after 1000 hours.
Oxide Film Stability:
Below 800°C, the Cr₂O₃ oxide film remains stable without peeling or cracking.
Below 900°C, the oxide film continues to provide effective protection, with an oxidation rate below 0.01 mm/year.
Below 800°C, the Cr₂O₃ oxide film remains stable without peeling or cracking.
Below 900°C, the oxide film continues to provide effective protection, with an oxidation rate below 0.01 mm/year.
The BSW NA16 Nut is protected by the Cr₂O₃ oxide film in high-temperature environments, ensuring its long-term stability and reliability.
4. Summary
The BSW NA16 Nut demonstrates outstanding mechanical properties and oxidation resistance in high-temperature environments, with tensile strength, yield strength, elongation, and creep performance surpassing those of most high-temperature alloys. Through optimized chemical composition and microstructure, the BSW NA16 Nut further enhances its high-temperature performance, meeting the high-reliability requirements of extreme environments.
The BSW NA16 Nut demonstrates outstanding mechanical properties and oxidation resistance in high-temperature environments, with tensile strength, yield strength, elongation, and creep performance surpassing those of most high-temperature alloys. Through optimized chemical composition and microstructure, the BSW NA16 Nut further enhances its high-temperature performance, meeting the high-reliability requirements of extreme environments.
When selecting fasteners for demanding high-temperature applications, the BSW NA16 Nut is a reliable choice, offering exceptional performance under the most challenging conditions.
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