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A286 Double Head Stud Bolt
QS Fastener: A286 Double Head Stud Bolt
Name: A286 Double Head Stud Bolt
Material: A286, UNS S66286, Stainless Steel
Feature: With Exceptional Corrosion Resistance
Size: M12
Pitch: 1.75
Length: 550 mm
Application: Recommend for Elevated Temperature Environments
Material: A286, UNS S66286, Stainless Steel
Feature: With Exceptional Corrosion Resistance
Size: M12
Pitch: 1.75
Length: 550 mm
Application: Recommend for Elevated Temperature Environments
Quantity
The A286 Double Head Stud Bolt is a fastener designed for high-temperature and corrosive environments! Made from A286 (UNS S66286) stainless steel, it features a size of M12, a pitch of 1.75, and a length of 550 mm, ensuring precise connections and stable performance. The double-headed stud design facilitates installation and offers flexible application options. It is recommended for industrial equipment assembly in high-temperature environments, such as aerospace, petrochemical, and other fields. Choose the A286 Double Head Stud Bolt to provide a reliable and durable solution for your projects!
In the aerospace industry, ASTM A453 Gr.660 fasteners are primarily used in extreme operating conditions, such as high-temperature engine components, turbine disks, and combustion chambers. The A286 Double Head Stud Bolt excels in these scenarios, particularly in high-temperature and corrosive environments.
Application Scenarios
1. High-Temperature Engine Components:
Operating Conditions: Temperatures of 600-800°C, high-speed airflow erosion, thermal cyclic loads.
Critical Areas: Turbine blade connection bolts, combustion chamber flange bolts.
1. High-Temperature Engine Components:
Operating Conditions: Temperatures of 600-800°C, high-speed airflow erosion, thermal cyclic loads.
Critical Areas: Turbine blade connection bolts, combustion chamber flange bolts.
The A286 Double Head Stud Bolt maintains stable performance under these extreme conditions.
2. Turbine Disks:
Operating Conditions: Temperatures of 500-700°C, centrifugal loads (>10⁴ g), high-frequency vibrations.
Operating Conditions: Temperatures of 500-700°C, centrifugal loads (>10⁴ g), high-frequency vibrations.
Critical Areas: Turbine disk-to-shaft connection bolts, inter-disk fixing bolts.
The A286 Double Head Stud Bolt is an ideal choice due to its high strength and fatigue resistance.
3. Combustion Chambers:
Operating Conditions: Temperatures of 800-1000°C, gas corrosion (containing sulfides, CO₂).
Operating Conditions: Temperatures of 800-1000°C, gas corrosion (containing sulfides, CO₂).
Critical Areas: Combustion chamber shell connection bolts, nozzle fixing bolts.
The A286 Double Head Stud Bolt ensures long-term reliability with its high-temperature oxidation and creep resistance.
Performance Advantages
1. High Specific Strength:
Specific Strength (Strength/Density): ≥250 MPa·cm³/g, superior to titanium alloy (TC4: 220 MPa·cm³/g).
1. High Specific Strength:
Specific Strength (Strength/Density): ≥250 MPa·cm³/g, superior to titanium alloy (TC4: 220 MPa·cm³/g).
Lightweight Design: Density of 8.0 g/cm³, lighter than nickel-based alloys (e.g., Inconel 718: 8.2 g/cm³), suitable for weight-sensitive components.
The A286 Double Head Stud Bolt combines high strength with reduced weight.
2. Fatigue Resistance:
High-Cycle Fatigue Limit (ASTM E466): ≥550 MPa (10⁷ cycles), 37% higher than titanium alloy TC4 (400 MPa).
High-Cycle Fatigue Limit (ASTM E466): ≥550 MPa (10⁷ cycles), 37% higher than titanium alloy TC4 (400 MPa).
Thermal Fatigue Resistance: After 1000 thermal cycles (800°C to room temperature), fatigue strength retention rate ≥90%.
The A286 Double Head Stud Bolt ensures stability over long-term use.
3. High-Temperature Oxidation Resistance:
Oxidation Rate in Air at 800°C: ≤0.02 mg/cm²·h, forming a continuous Al₂O₃/Cr₂O₃ composite oxide film.
Oxidation Rate in Air at 800°C: ≤0.02 mg/cm²·h, forming a continuous Al₂O₃/Cr₂O₃ composite oxide film.
The A286 Double Head Stud Bolt maintains performance in extreme environments.
4. Creep Resistance:
Steady-State Creep Rate at 700°C/200 MPa: ≤1×10⁻⁸/s, meeting long-life engine requirements.
Steady-State Creep Rate at 700°C/200 MPa: ≤1×10⁻⁸/s, meeting long-life engine requirements.
The A286 Double Head Stud Bolt ensures long-term reliability under high-stress, high-temperature conditions.
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