High Temperature Resistant Stock Compression Springs 1200°C Thermal Stability
Product Details
| 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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Product Description
| 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 |
- 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
- Vacuum induction melting to minimize impurity levels (<0.005% sulfur)
- Solution annealing (1050°C for Inconel alloys) followed by age hardening to precipitate γ' phase strengthening
- Shot peening with 0.1mm zirconia media to induce 600MPa compressive residual stress, extending fatigue life by 300%
- Plasma spray coating (MCrAlY, 50-100μm thickness) for enhanced oxidation resistance in cyclic high-temperature environments
- 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
- 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
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