Specifications
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)
Description
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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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
Contact Supplier
High Temperature Resistant Stock Compression Springs 1200°C Thermal Stability
High Temperature Resistant Stock Compression Springs 1200°C Thermal Stability
High Temperature Resistant Stock Compression Springs 1200°C Thermal Stability

Jiangsu Sunzo Spring Elasticity Technology Co., Ltd

Verified Supplier
1 Years
nanjing
Since 2006
Business Type :
Manufacturer, Exporter, Seller
Total Annual :
1.2M-1.4M
Employee Number :
160~200
Certification Level :
Verified Supplier
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