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High Temperature Resistant Stock Compression Springs 1200°C Thermal Stability

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High Temperature Resistant Stock Compression Springs 1200°C Thermal Stability

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Place of Origin : Sihong, China

Brand Name : Sunzo

Certification : CE/IATF16949/45001/14001/9001

MOQ : Negotiable

Price : Negotiable

Packaging Details : Carton

Delivery Time : Negotiable

Payment Terms : Negotiable

Temperature resistance : 200°C to 1200°C

Material options : Inconel X-750, Haynes 282, Nimonic 90, Tungsten alloy

Tensile strength : 85% at 800°C (Inconel X-750)

Creep rupture strength : 150MPa at 700°C (Inconel X-750)

Oxidation resistance : ≤0.01mm/year at 980°C (Haynes 282)

Thermal cycles : <2% permanent set after 10⁴ cycles (Nimonic 90)

Yield strength : 310MPa at 1000°C (Tungsten alloy)

Coil spacing tolerance : ±0.02mm

Wire diameter : 1.5-8mm

Sulfur content : <0.005%

Solution annealing : 1050°C (Inconel alloys)

Residual stress : 600MPa compressive

Coating thickness : 50-100μm (MCrAlY)

Fatigue cycles : 10⁸ cycles at 70% load (ISO 13920)

Plastic deformation : <0.2% after 1000h at 800°C (ASTM E290)

Thermal shock cycles : 100 cycles (-50°C to 1000°C)

Weight gain : <0.1mg/cm² after 1000h at 900°C (ASTM G54)

Fatigue life extension : 300%

Elastic modulus retention : >90% at extreme temperatures

Stiffness loss : 30-50% at 500°C (conventional springs)

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High-Temperature Resistant Helical Spring
Engineered for 1200°C thermal stability in power generation and automotive applications. Our precision-engineered helical spring maintains dimensional stability, elastic performance, and fatigue resistance in extreme thermal environments from 200°C to 1200°C.
Material Options
Material selection is critical to thermal resilience, with options tailored to specific temperature thresholds:
Material Temperature Range Key Properties Applications
Inconel® X-750 (UNS N07750) Up to 800°C Maintains 85% tensile strength at 800°C, 10⁵ hour creep rupture strength of 150MPa at 700°C Gas turbine combustors, exhaust systems
Haynes® 282® (UNS N07282) Up to 1000°C Superior oxidation resistance (≤0.01mm/year weight loss at 980°C), thermal fatigue resistance Industrial furnace door mechanisms
Nimonic® 90 (UNS N07090) 200°C to 800°C <2% permanent set after 10⁴ thermal cycles, optimized for cyclic thermal loading Automotive turbocharger wastegates
Tungsten alloy (W-2%ThO₂) Up to 1200°C 310MPa yield strength at 1000°C Nuclear reactor control rods
Design Features
Our design process integrates multi-physics FEA (ANSYS Mechanical Thermal) to simulate thermal expansion, creep deformation, and stress relaxation. Spring geometry is optimized with:
  • Variable pitch coils to compensate for differential thermal expansion (±0.02mm tolerance on coil spacing)
  • Tapered wire diameters (1.5-8mm) to reduce stress concentration at coil interfaces
  • Heat-treated end configurations (ground, squared, or looped) to maintain load distribution under thermal cycling
Manufacturing Process
  1. Vacuum induction melting to minimize impurity levels (<0.005% sulfur)
  2. Solution annealing (1050°C for Inconel alloys) followed by age hardening to precipitate γ' phase strengthening
  3. Shot peening with 0.1mm zirconia media to induce 600MPa compressive residual stress, extending fatigue life by 300%
  4. Plasma spray coating (MCrAlY, 50-100μm thickness) for enhanced oxidation resistance in cyclic high-temperature environments
Performance Validation
Adheres to stringent industry standards:
  • ISO 13920 Class 0 fatigue testing: 10⁸ cycles at 70% rated load with <1% load loss
  • ASTM E290 creep testing: <0.2% plastic deformation after 1000 hours at 800°C/500N load
  • Thermal shock testing (MIL-STD-810H Method 503.7): 100 cycles from -50°C to 1000°C with no structural failure
  • Oxidation resistance per ASTM G54: <0.1mg/cm² weight gain after 1000 hours at 900°C
Field Performance
Field applications demonstrate exceptional reliability:
  • Power generation client reduced turbine spring replacements by 75% with Inconel X-750 springs
  • Automotive OEM achieved 1.2 million km turbocharger durability with Nimonic 90 wastegate springs
  • Semiconductor furnace manufacturer reported zero spring failures in 3-year continuous operation at 1100°C
Backed by ISO 9001:2015 and AS9100D certifications, we provide full material traceability (heat lot certificates, test reports) and custom engineering support—including FEA thermal modeling and application-specific material selection—to meet your exact temperature, load, and environmental requirements.

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