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NF NC19FeNb Nut
QS Fastener: NF NC19FeNb Nut
Name: NF NC19FeNb Nut
Material: Inconel 718, NA51
Height: 5.6 to 60 mm
Product Grade: A
Size: M24
Standard: ANSI, DIN, BSW, NF
Feature: Excellent Creep and Stress Rupture Strength, Workability, High Oxidation Resistance
Application: Gas Engine Turbines, Widely Used in a Variety of High-demand Occasions
Material: Inconel 718, NA51
Height: 5.6 to 60 mm
Product Grade: A
Size: M24
Standard: ANSI, DIN, BSW, NF
Feature: Excellent Creep and Stress Rupture Strength, Workability, High Oxidation Resistance
Application: Gas Engine Turbines, Widely Used in a Variety of High-demand Occasions
Quantity
The NF NC19FeNb Nut is made from high-performance Inconel 718 (NA51), offering exceptional creep resistance, stress rupture strength, and high oxidation resistance, making it suitable for demanding applications. With heights ranging from 5.6 to 60 mm, it is available in standards such as ANSI, DIN, BSW, and NF. Widely used in gas turbines and other high-load applications, it provides reliable and durable fastening solutions to meet the needs of harsh operating conditions.
The NF NC19FeNb Nut is a nickel-based high-temperature alloy fastener. Its excellent creep and fatigue resistance ensures outstanding performance in high-temperature and high-stress environments. The NF NC19FeNb Nut is specifically designed to meet the requirements for high strength and reliability in extreme conditions.
1. Creep Resistance
Creep refers to the slow plastic deformation of a material under high temperature and sustained stress. The creep resistance of the NF NC19FeNb Nut is primarily attributed to its solid solution strengthening and precipitation strengthening mechanisms, particularly the strengthening effects of the γ'' phase (Ni₃Nb) and γ' phase (Ni₃(Al,Ti)).
Creep refers to the slow plastic deformation of a material under high temperature and sustained stress. The creep resistance of the NF NC19FeNb Nut is primarily attributed to its solid solution strengthening and precipitation strengthening mechanisms, particularly the strengthening effects of the γ'' phase (Ni₃Nb) and γ' phase (Ni₃(Al,Ti)).
1.1 Creep Data
Temperature Range: The NF NC19FeNb Nut exhibits excellent creep resistance at temperatures up to 650°C, with short-term use possible at 700°C.
Creep Rupture Strength:
At 650°C for 1,000 hours, the creep rupture strength is ≥620 MPa.
At 700°C for 100 hours, the creep rupture strength is ≥450 MPa.
Temperature Range: The NF NC19FeNb Nut exhibits excellent creep resistance at temperatures up to 650°C, with short-term use possible at 700°C.
Creep Rupture Strength:
At 650°C for 1,000 hours, the creep rupture strength is ≥620 MPa.
At 700°C for 100 hours, the creep rupture strength is ≥450 MPa.
Creep Rate:
At 650°C under a stress of 550 MPa, the steady-state creep rate is 1×10⁻⁸ s⁻¹.
At 700°C under a stress of 400 MPa, the steady-state creep rate is 5×10⁻⁷ s⁻¹.
At 650°C under a stress of 550 MPa, the steady-state creep rate is 1×10⁻⁸ s⁻¹.
At 700°C under a stress of 400 MPa, the steady-state creep rate is 5×10⁻⁷ s⁻¹.
The NF NC19FeNb Nut's superior creep resistance at high temperatures makes it an ideal choice for applications such as gas turbines.
2. Fatigue Resistance
Fatigue refers to the initiation and propagation of cracks in a material under cyclic stress, ultimately leading to failure. The fatigue resistance of the NF NC19FeNb Nut benefits from its high strength, good ductility, and stable microstructure.
Fatigue refers to the initiation and propagation of cracks in a material under cyclic stress, ultimately leading to failure. The fatigue resistance of the NF NC19FeNb Nut benefits from its high strength, good ductility, and stable microstructure.
2.1 Fatigue Data
Fatigue Limit:
At room temperature, the fatigue limit is 40%-50% of the tensile strength, approximately 500-620 MPa.
At 650°C, the fatigue limit is 30%-40% of the tensile strength, approximately 370-500 MPa.
Fatigue Limit:
At room temperature, the fatigue limit is 40%-50% of the tensile strength, approximately 500-620 MPa.
At 650°C, the fatigue limit is 30%-40% of the tensile strength, approximately 370-500 MPa.
Fatigue Life:
At room temperature with a stress amplitude of 500 MPa, the fatigue life (Nf) is ≥10⁶ cycles.
At 650°C with a stress amplitude of 400 MPa, the fatigue life (Nf) is ≥10⁵ cycles.
At room temperature with a stress amplitude of 500 MPa, the fatigue life (Nf) is ≥10⁶ cycles.
At 650°C with a stress amplitude of 400 MPa, the fatigue life (Nf) is ≥10⁵ cycles.
Crack Growth Rate:
At room temperature, the crack growth rate (da/dN) is 1×10⁻⁸ m/cycle (ΔK=10 MPa√m).
At 650°C, the crack growth rate (da/dN) is 5×10⁻⁸ m/cycle (ΔK=10 MPa√m).
At room temperature, the crack growth rate (da/dN) is 1×10⁻⁸ m/cycle (ΔK=10 MPa√m).
At 650°C, the crack growth rate (da/dN) is 5×10⁻⁸ m/cycle (ΔK=10 MPa√m).
The NF NC19FeNb Nut's fatigue resistance under high cyclic stress ensures long-term stable operation and reduces maintenance requirements.
3. Comprehensive Performance
The exceptional creep and fatigue resistance of Inconel 718 under high-temperature and high-stress conditions are primarily due to the following factors:
Strengthening Mechanisms: The precipitation strengthening effects of the γ'' and γ' phases significantly enhance the material's strength and stability.
The exceptional creep and fatigue resistance of Inconel 718 under high-temperature and high-stress conditions are primarily due to the following factors:
Strengthening Mechanisms: The precipitation strengthening effects of the γ'' and γ' phases significantly enhance the material's strength and stability.
Microstructure: The fine grain structure and uniformly distributed strengthening phases effectively inhibit grain boundary sliding and dislocation movement.
Heat Treatment Process: Optimized heat treatment processes further improve the material's creep and fatigue resistance.
Through optimized material properties and manufacturing processes, the NF NC19FeNb Nut delivers exceptional reliability and durability in extreme environments.
4. Summary
The NF NC19FeNb Nut exhibits outstanding creep and fatigue resistance under high-temperature and high-stress conditions, with specific data as follows:
Creep Resistance: At 650°C for 1,000 hours, the creep rupture strength is ≥620 MPa; at 700°C for 100 hours, the creep rupture strength is ≥450 MPa.
The NF NC19FeNb Nut exhibits outstanding creep and fatigue resistance under high-temperature and high-stress conditions, with specific data as follows:
Creep Resistance: At 650°C for 1,000 hours, the creep rupture strength is ≥620 MPa; at 700°C for 100 hours, the creep rupture strength is ≥450 MPa.
Fatigue Resistance: At room temperature, the fatigue limit is 500-620 MPa; at 650°C, the fatigue limit is 370-500 MPa.
These properties make the NF NC19FeNb Nut an ideal choice for high-strength, high-reliability connection solutions in extreme environments. By optimizing heat treatment and surface treatment technologies, its creep and fatigue resistance can be further enhanced to meet the most stringent engineering requirements.
The NF NC19FeNb Nut is widely used in industries such as gas turbines, aerospace, and petrochemicals. Its exceptional performance and reliability make it the preferred fastener in these fields. Whether in high-temperature environments or under high-stress conditions, the NF NC19FeNb Nut provides stable connection solutions, ensuring the safe operation of equipment.
When selecting fasteners, the NF NC19FeNb Nut is undoubtedly a trustworthy choice. Its high-performance materials and optimized design enable it to excel in various extreme conditions, meeting the most demanding engineering needs.
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