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Incoloy 925 Bolt and Nut
QS Fastener: Incoloy 925 Bolt and Nut
Name: Incoloy 925 Bolt and Nut
Material: N09925
Size: M48
Length: 640 mm
Product Grade: A
Strength of Extension: 650 N/mm²
Standard: ANSI
Feature: Good Mechanical Strength and Extensive Corrosion Resistance
Application: For Oil and Gas Drilling Equipment
Material: N09925
Size: M48
Length: 640 mm
Product Grade: A
Strength of Extension: 650 N/mm²
Standard: ANSI
Feature: Good Mechanical Strength and Extensive Corrosion Resistance
Application: For Oil and Gas Drilling Equipment
Quantity
Incoloy 925 Bolt and Nut are manufactured from high-performance N09925 nickel-based alloy, compliant with ANSI international standards. The product is Grade A, with a size of M48, a bolt length of 640 mm, and a tensile strength of up to 650 N/mm². This product offers exceptional mechanical strength and broad corrosion resistance, making it particularly suitable for extreme operating environments such as oil and gas drilling equipment. Whether in high-temperature, high-pressure, or corrosive media conditions, Incoloy 925 Bolt and Nut demonstrate outstanding stability and durability, ensuring long-term reliable operation of equipment in complex conditions.
Incoloy 925 Bolt and Nut are renowned for their excellent high-temperature performance, maintaining superior mechanical properties and oxidation resistance in high-temperature environments. Their high-temperature resistance is primarily attributed to their high nickel and chromium content, as well as the addition of elements such as molybdenum and titanium, which work together to maintain stable microstructure and mechanical properties at elevated temperatures.
1. Chemical Composition and High-Temperature Resistance Mechanism
The chemical composition of Incoloy 925 Bolt and Nut is as follows:
Nickel (Ni): 40-45%, providing stability and creep resistance at high temperatures.
Chromium (Cr): 19.5-23.5%, forming a dense chromium oxide protective layer to resist high-temperature oxidation.
Molybdenum (Mo): 2.5-3.5%, enhancing high-temperature strength and creep resistance.
The chemical composition of Incoloy 925 Bolt and Nut is as follows:
Nickel (Ni): 40-45%, providing stability and creep resistance at high temperatures.
Chromium (Cr): 19.5-23.5%, forming a dense chromium oxide protective layer to resist high-temperature oxidation.
Molybdenum (Mo): 2.5-3.5%, enhancing high-temperature strength and creep resistance.
Titanium (Ti): 1.9-2.4%, improving resistance to intergranular corrosion at high temperatures through stabilization treatment.
The synergistic effect of these elements enables Incoloy 925 Bolt and Nut to perform exceptionally well in high-temperature environments.
The synergistic effect of these elements enables Incoloy 925 Bolt and Nut to perform exceptionally well in high-temperature environments.
2. High-Temperature Mechanical Properties
Incoloy 925 Bolt and Nut maintain excellent mechanical properties at high temperatures, including tensile strength, yield strength, and creep resistance. Below are their mechanical properties at different temperatures:
Incoloy 925 Bolt and Nut maintain excellent mechanical properties at high temperatures, including tensile strength, yield strength, and creep resistance. Below are their mechanical properties at different temperatures:
| Temperature (°C) | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) |
| 25 | 850 | 550 | 30 |
| 200 | 800 | 500 | 28 |
| 400 | 750 | 450 | 25 |
| 600 | 700 | 400 | 20 |
| 800 | 650 | 350 | 15 |
Tensile Strength: Maintains 650 MPa at 800°C, demonstrating excellent high-temperature strength.
Yield Strength: Maintains 350 MPa at 800°C, suitable for high-temperature and high-stress environments.
Elongation: Retains high elongation at high temperatures, indicating good toughness and fracture resistance.
Yield Strength: Maintains 350 MPa at 800°C, suitable for high-temperature and high-stress environments.
Elongation: Retains high elongation at high temperatures, indicating good toughness and fracture resistance.
3. Oxidation Resistance
Incoloy 925 Bolt and Nut exhibit excellent oxidation resistance at high temperatures, primarily due to the dense chromium oxide layer formed by their high chromium content. Below are their oxidation rates at different temperatures:
Incoloy 925 Bolt and Nut exhibit excellent oxidation resistance at high temperatures, primarily due to the dense chromium oxide layer formed by their high chromium content. Below are their oxidation rates at different temperatures:
| Temperature (°C) | Oxidation Rate (g/m²·h) |
| 600 | < 0.01 |
| 800 | < 0.05 |
| 1000 | < 0.1 |
600°C: Extremely low oxidation rate, with almost no oxidation.
800°C: Low oxidation rate, demonstrating excellent oxidation resistance.
1000°C: Slightly increased oxidation rate but remains at a low level, suitable for short-term high-temperature applications.
800°C: Low oxidation rate, demonstrating excellent oxidation resistance.
1000°C: Slightly increased oxidation rate but remains at a low level, suitable for short-term high-temperature applications.
4. Creep Resistance
Incoloy 925 Bolt and Nut exhibit excellent creep resistance at high temperatures, making them suitable for long-term high-temperature applications. Below are their creep rupture times under different temperatures and stresses:
Incoloy 925 Bolt and Nut exhibit excellent creep resistance at high temperatures, making them suitable for long-term high-temperature applications. Below are their creep rupture times under different temperatures and stresses:
| Temperature (°C) | Stress (MPa) | Creep Rupture Time (h) |
| 600 | 200 | >10,000 |
| 700 | 150 | >5,000 |
| 800 | 100 | > 1,000 |
600°C: Creep rupture time exceeds 10,000 hours under 200 MPa stress, demonstrating excellent creep resistance.
800°C: Creep rupture time exceeds 1,000 hours under 100 MPa stress, suitable for high-temperature and high-stress environments.
800°C: Creep rupture time exceeds 1,000 hours under 100 MPa stress, suitable for high-temperature and high-stress environments.
5. Application Examples of Incoloy 925 Bolt and Nut
Gas Turbines: Used in turbine blades, combustion chambers, and high-temperature bolts, withstanding high temperatures and high stresses.
Gas Turbines: Used in turbine blades, combustion chambers, and high-temperature bolts, withstanding high temperatures and high stresses.
Boiler Equipment: Used in boiler tubes, superheaters, and high-temperature fasteners, withstanding high temperatures and oxidative gases.
Petrochemical Industry: Used in cracking furnaces, reactors, and high-temperature pipelines, withstanding high temperatures and corrosive media.
Aerospace: Used in engine components and high-temperature fasteners, withstanding extreme temperatures and stresses.
Incoloy 925 Bolt and Nut, with their excellent high-temperature performance, maintain stable mechanical properties and oxidation resistance in high-temperature environments, making them particularly suitable for high-temperature applications in gas turbines, boilers, petrochemicals, and aerospace. Their high-temperature resistance not only ensures the safety and reliability of equipment but also significantly extends service life and reduces maintenance costs. For further information on the high-temperature performance of Incoloy 925 Bolt and Nut or customized design inquiries, please contact our technical support team.
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