Extreme Conditions Alloy Steel Helical Spring Fatigue Resistant Precision CNC Coiled
Extreme Conditions Alloy Steel Helical Spring Fatigue Resistant Precision CNC Coiled
Basic Properties
Place of Origin:
Sihong, China
Brand Name:
Sunzo
Certification:
CE/IATF16949/45001/14001/9001
Trading Properties
Minimum Order Quantity:
Negotiable
Price:
Negotiable
Payment Terms:
Negotiable
Product Summary
Alloy steel compression springs for extreme conditions. High-temperature stability up to 300°C, fatigue-resistant with 10⁷ cycle life. ISO-certified, custom alloys available for automotive, power, and aerospace applications.
Product Custom Attributes
Highlight
Extreme Conditions Alloy Steel Helical Spring
,Helical Spring Fatigue Resistant
,CNC Coiled conical compression springs
Material:
ASTM A232 Chrome-vanadium Steel, EN 10270-3 Silicon-manganese Alloys
Max Temperature:
300°C (572°F)
Load Loss:
<3% After 10,000 Hours At 250°C
Thermal Cycling Range:
-50°C To 350°C
Fatigue Life:
10⁷ Cycles At 75% UTS
Wire Diameter Control:
±0.01mm
Austenitizing Temperature:
880°C
Tempering Temperature:
450°C For 3 Hours
Ultimate Tensile Strength:
1800 MPa
Hardness:
48-52 HRC
Surface Hardness:
HV 800+
Thermal Stress Reduction:
28%
Shot Peening Beads:
0.3mm Glass Beads
Turbocharger Spring Resistance:
1000-hour Oxidation Resistance At 650°C
Steam Turbine Life:
20-year Service Life
Aerospace Temperature Range:
-270°C To 1000°C
Field Failure Rate:
<0.0015%
Load Stability:
Maintained From -270°C To 1000°C
Thermal Expansion Compensation:
Optimized Coil Geometry
Creep Testing Standard:
ISO 20432
Product Description
Detailed Specifications & Features
Alloy Steel Compression Spring: Engineered for Extreme Conditions - High-Temperature & Fatigue-Resistant Solutions
In extreme industrial environments—from automotive engine compartments to gas turbine systems—compression springs must withstand relentless thermal stress and cyclic loading without compromising performance. Our Alloy Steel Compression Springs are engineered to excel in these harsh conditions, leveraging advanced metallurgy and precision engineering to deliver unmatched high-temperature stability and fatigue resistance.
Material Specifications
Constructed from premium alloy steel grades (ASTM A232 chrome-vanadium steel and EN 10270-3 silicon-manganese alloys), these springs maintain consistent elastic modulus up to 300°C (572°F) and exhibit minimal load loss (<3%) after 10,000 hours at 250°C, outperforming conventional carbon steel springs by 40% in high-heat applications.
Engineering & Design
Our engineering process integrates CAD (SolidWorks 2024) with thermo-mechanical FEA (ANSYS Mechanical) to optimize coil geometry for thermal expansion compensation. The springs feature a proprietary variable-pitch design that reduces thermal stress concentrations by 28% compared to uniform coils, validated through thermal cycling tests from -50°C to 350°C.
For critical applications like exhaust valve systems, we incorporate shot peening with 0.3mm glass beads to induce compressive residual stress, extending fatigue life to 10⁷ cycles at 75% of ultimate tensile strength (UTS).
Manufacturing Excellence
Manufacturing excellence is achieved through precision CNC coiling (±0.01mm wire diameter control) followed by a multi-stage heat treatment process: austenitizing at 880°C, oil quenching, and tempering at 450°C for 3 hours to achieve a tempered martensite microstructure with UTS up to 1800 MPa and hardness of 48-52 HRC.
Post-treatment includes nitrocarburizing for surface hardness (HV 800+) and corrosion resistance, ensuring compliance with ISO 18797 for high-temperature service.
Industry-Specific Solutions
- Automotive: Turbocharger wastegate springs (Inconel 718 alloy) with 1000-hour oxidation resistance at 650°C
- Power Generation: Steam turbine valve springs (AISI 9254 silicon steel) with 20-year service life under cyclic loading
- Aerospace: Engine control actuators (Hastelloy X alloy) maintaining load stability from -270°C to 1000°C
Quality Assurance
Quality validation includes 100% load testing at operating temperature, ultrasonic flaw detection, and creep testing per ISO 20432. Backed by a materials engineering team with 30+ years of high-temperature alloy experience, we provide full traceability documentation and custom alloy formulations to meet unique thermal and mechanical requirements.
Our alloy steel compression springs currently support 150+ industrial OEMs worldwide, with a field failure rate of <0.0015% in extreme temperature applications.
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