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Zeron 100 Stud Bolt
QS Fastener: Zeron 100 Stud Bolt
Name: Zeron 100 Stud Bolt
Material: W.Nr.1.4501
Size: M6 to M100
Grade: A
Lenght: 30 to 800 mm
Class: 12.9
Elongation: 25%
Standard: ANSI, DIN, UNS, ASTM
Feature: High mechanical strength and good ductility, good corrosion resistance
Application: Primarily used in Oil and Gas and Marine Applications, Including Pressure Vessels, Choke Valves, Flanges and Piping Systems
Material: W.Nr.1.4501
Size: M6 to M100
Grade: A
Lenght: 30 to 800 mm
Class: 12.9
Elongation: 25%
Standard: ANSI, DIN, UNS, ASTM
Feature: High mechanical strength and good ductility, good corrosion resistance
Application: Primarily used in Oil and Gas and Marine Applications, Including Pressure Vessels, Choke Valves, Flanges and Piping Systems
Quantity
Zeron 100 Stud Bolt is manufactured from W.Nr.1.4501 super duplex stainless steel, with sizes ranging from M6 to M100 and lengths from 30 to 800 mm. It complies with ANSI, DIN, UNS, and ASTM standards, is classified as Grade A, and has a strength grade of 12.9 with an elongation rate of 25%. Combining high mechanical strength with excellent ductility, it also provides superior corrosion resistance. Primarily used in the oil and gas, and marine engineering sectors, it is widely applied in pressure vessels, choke valves, flanges, and piping systems.
Zeron 100 Stud Bolt is a nickel-based duplex stainless steel alloy fastener. Its unique duplex microstructure (austenite and ferrite) and excellent mechanical properties enable it to exhibit outstanding fatigue resistance under cyclic loading.
1. Fatigue Resistance
Fatigue refers to the process in which materials or components gradually accumulate permanent damage under repeated alternating stress/strain, eventually leading to crack formation or sudden fracture. The fatigue resistance of Zeron 100 Stud Bolt is reflected in the following aspects:
High Fatigue Strength: It can withstand high stress amplitudes under cyclic loading, extending fatigue life.
Low Crack Propagation Rate: After fatigue crack initiation, the crack propagation rate is slow, enhancing material safety.
Excellent Toughness: It can absorb energy under dynamic loading, reducing stress concentration and delaying fatigue failure.
Fatigue refers to the process in which materials or components gradually accumulate permanent damage under repeated alternating stress/strain, eventually leading to crack formation or sudden fracture. The fatigue resistance of Zeron 100 Stud Bolt is reflected in the following aspects:
High Fatigue Strength: It can withstand high stress amplitudes under cyclic loading, extending fatigue life.
Low Crack Propagation Rate: After fatigue crack initiation, the crack propagation rate is slow, enhancing material safety.
Excellent Toughness: It can absorb energy under dynamic loading, reducing stress concentration and delaying fatigue failure.
2. Fatigue Performance Test Data
The fatigue performance of Zeron 100 Stud Bolt is evaluated through standard fatigue tests (e.g., rotating bending fatigue test and axial fatigue test). Typical data include:
Fatigue Limit (S-N Curve):
At 10⁷ cycles, the fatigue limit (σ_f) is 400-450 MPa.
At 10⁵ cycles, the fatigue strength is 600-650 MPa.
The fatigue performance of Zeron 100 Stud Bolt is evaluated through standard fatigue tests (e.g., rotating bending fatigue test and axial fatigue test). Typical data include:
Fatigue Limit (S-N Curve):
At 10⁷ cycles, the fatigue limit (σ_f) is 400-450 MPa.
At 10⁵ cycles, the fatigue strength is 600-650 MPa.
Crack Propagation Rate (da/dN):
At a stress intensity factor range (ΔK) of 10 MPa√m, the crack propagation rate is 1×10⁻⁸ m/cycle.
At ΔK of 20 MPa√m, the crack propagation rate is 1×10⁻⁷ m/cycle.
At a stress intensity factor range (ΔK) of 10 MPa√m, the crack propagation rate is 1×10⁻⁸ m/cycle.
At ΔK of 20 MPa√m, the crack propagation rate is 1×10⁻⁷ m/cycle.
Fatigue Life:
At a stress amplitude of 500 MPa, the fatigue life (N_f) is 10⁵-10⁶ cycles.
At a stress amplitude of 300 MPa, the fatigue life exceeds 10⁷ cycles.
At a stress amplitude of 500 MPa, the fatigue life (N_f) is 10⁵-10⁶ cycles.
At a stress amplitude of 300 MPa, the fatigue life exceeds 10⁷ cycles.
3. Factors Affecting Fatigue Resistance
The fatigue resistance of Zeron 100 Stud Bolt is influenced by the following factors:
Microstructure: The duplex structure (austenite and ferrite) effectively hinders crack propagation, improving fatigue strength.
Surface Quality: High surface finish and defect-free surfaces significantly enhance fatigue life.
Stress Concentration: Avoiding sharp notches and stress concentration areas in design can extend fatigue life.
Environmental Conditions: Fatigue performance may degrade in corrosive environments, but the corrosion resistance of Zeron 100 Stud Bolt effectively mitigates this issue.
The fatigue resistance of Zeron 100 Stud Bolt is influenced by the following factors:
Microstructure: The duplex structure (austenite and ferrite) effectively hinders crack propagation, improving fatigue strength.
Surface Quality: High surface finish and defect-free surfaces significantly enhance fatigue life.
Stress Concentration: Avoiding sharp notches and stress concentration areas in design can extend fatigue life.
Environmental Conditions: Fatigue performance may degrade in corrosive environments, but the corrosion resistance of Zeron 100 Stud Bolt effectively mitigates this issue.
4. Applications
The fatigue resistance of Zeron 100 Stud Bolt makes it widely applicable in the following dynamic load environments:
Marine Engineering: Used in offshore platform structures and subsea pipelines subjected to wave impact, it can withstand long-term cyclic loading.
Oil and Gas Fields: Used in downhole tools and drill pipes, it remains stable under high stress and corrosive environments.
Chemical Equipment: Used in pumps, compressors, and reactors, it ensures long-term performance in high-temperature and corrosive media.
Energy Industry: Used in wind turbine blades and nuclear power plant equipment, it can endure long-term dynamic loads.
The fatigue resistance of Zeron 100 Stud Bolt makes it widely applicable in the following dynamic load environments:
Marine Engineering: Used in offshore platform structures and subsea pipelines subjected to wave impact, it can withstand long-term cyclic loading.
Oil and Gas Fields: Used in downhole tools and drill pipes, it remains stable under high stress and corrosive environments.
Chemical Equipment: Used in pumps, compressors, and reactors, it ensures long-term performance in high-temperature and corrosive media.
Energy Industry: Used in wind turbine blades and nuclear power plant equipment, it can endure long-term dynamic loads.
5. Measures to Enhance Fatigue Resistance
To further improve the fatigue resistance of Zeron 100 Stud Bolt, the following measures can be taken:
Surface Treatment: Shot peening or surface polishing can improve surface quality and reduce fatigue crack initiation.
Design Optimization: Avoiding stress concentration areas and incorporating smooth transitions and reinforcement designs.
Material Selection: In extreme environments, selecting higher-performance variants of Zeron 100 Stud Bolt.
To further improve the fatigue resistance of Zeron 100 Stud Bolt, the following measures can be taken:
Surface Treatment: Shot peening or surface polishing can improve surface quality and reduce fatigue crack initiation.
Design Optimization: Avoiding stress concentration areas and incorporating smooth transitions and reinforcement designs.
Material Selection: In extreme environments, selecting higher-performance variants of Zeron 100 Stud Bolt.
Conclusion
Zeron 100 Stud Bolt exhibits excellent fatigue resistance under cyclic loading. Its high fatigue strength, low crack propagation rate, and excellent toughness make it an ideal material for dynamic load environments.
Zeron 100 Stud Bolt exhibits excellent fatigue resistance under cyclic loading. Its high fatigue strength, low crack propagation rate, and excellent toughness make it an ideal material for dynamic load environments.
With its superior fatigue resistance and corrosion resistance, Zeron 100 Stud Bolt is the fastener of choice for demanding applications in marine engineering, oil and gas fields, chemical equipment, and the energy industry.
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