UNS S66286 Nut
QS Fastener: UNS S66286 Nut
Name: UNS S66286 Nut
Standard: ANSI/ASTM, DIN
Material: W.Nr.1.4980
Size: 5/16 to 4 inch
Product Grade: A
Tensile Strength(Rm): 895 N/mm²
Elongation: 25%
Feature: Excellent Corrosion Resistance
Application: For Aerospace and Heavy Industry, etc.
Standard: ANSI/ASTM, DIN
Material: W.Nr.1.4980
Size: 5/16 to 4 inch
Product Grade: A
Tensile Strength(Rm): 895 N/mm²
Elongation: 25%
Feature: Excellent Corrosion Resistance
Application: For Aerospace and Heavy Industry, etc.
Quantity
The UNS S66286 Nut is a high-performance fastener! Made from W.Nr.1.4980 material, it complies with ANSI/ASTM and DIN standards, offering exceptional corrosion resistance and ultra-high strength. With a tensile strength of up to 895 N/mm² and an elongation of 25%, it ensures durability and reliability. The product is Grade A, with sizes ranging from 5/16 to 4 inches, meeting diverse needs. Designed for harsh environments, it is an ideal choice for high-temperature, high-pressure, and corrosive conditions. Choose the UNS S66286 Nut to provide unparalleled performance assurance for your critical applications!
Material Comparison: UNS S66286 vs. Other Materials
| Property | UNS S66286 Nut | 304 Stainless Steel | Inconel 718 |
| Maximum Operating Temperature | 800°C (long-term) | 450°C | 700°C (long-term) |
| High-Temperature Oxidation | Oxidation Rate ≤0.02 mg/cm²·h | ≥0.15 mg/cm²·h | ≤0.01 mg/cm²·h |
| Stress Corrosion Cracking Resistance | No Failure (NACE TM0177) | Fails in 48 hours | No Failure |
| Creep Resistance | Steady-State Creep Rate ≤1×10⁻⁸/s | 5×10⁻⁷/s | 0.8×10⁻⁸/s |
| Service Life | ≥20 Years (600°C/15MPa) | 5-10 Years | ≥25 Years |
Core Advantages
1. High-Temperature Oxidation and Corrosion Resistance: The UNS S66286 Nut performs significantly better than 304 stainless steel in high-temperature and sulfur/Cl⁻ environments, approaching the performance of high-cost nickel-based alloys like Inconel 718.
1. High-Temperature Oxidation and Corrosion Resistance: The UNS S66286 Nut performs significantly better than 304 stainless steel in high-temperature and sulfur/Cl⁻ environments, approaching the performance of high-cost nickel-based alloys like Inconel 718.
2. Long Service Life and High Reliability: In high-temperature and high-pressure environments, the UNS S66286 Nut can achieve a service life of over 20 years, reducing equipment maintenance costs.
3. Cost-Effectiveness: Although the initial cost is higher than 304 stainless steel, the long service life and low maintenance costs make the UNS S66286 Nut more cost-effective overall.
Practical Application Cases
1. Gas Turbine Turbine Blade Fastening Nuts
Operating Conditions: 700°C, high-speed airflow erosion, thermal cyclic loads.
Results: ASTM A453 Gr.660 bolts with UNS S66286 Nut showed no fatigue cracks after 10,000 hours of operation, doubling the service life compared to 304 stainless steel bolts.
1. Gas Turbine Turbine Blade Fastening Nuts
Operating Conditions: 700°C, high-speed airflow erosion, thermal cyclic loads.
Results: ASTM A453 Gr.660 bolts with UNS S66286 Nut showed no fatigue cracks after 10,000 hours of operation, doubling the service life compared to 304 stainless steel bolts.
2. Boiler Furnace Fastening Nuts
Operating Conditions: 600°C, 15MPa, high-temperature and high-pressure steam environment.
Results: ASTM A453 Gr.660 fasteners with UNS S66286 Nut exhibited a stress relaxation rate of ≤5% after 15 years, meeting ASME Boiler Code requirements.
Operating Conditions: 600°C, 15MPa, high-temperature and high-pressure steam environment.
Results: ASTM A453 Gr.660 fasteners with UNS S66286 Nut exhibited a stress relaxation rate of ≤5% after 15 years, meeting ASME Boiler Code requirements.
3. High-Temperature Pipeline Flange Connections
Operating Conditions: 500°C, 10MPa, with Cl⁻ (500ppm) and SO₂ (200ppm).
Operating Conditions: 500°C, 10MPa, with Cl⁻ (500ppm) and SO₂ (200ppm).
Results: ASTM A453 Gr.660 bolts with UNS S66286 Nut showed no stress corrosion cracking (SCC) or fatigue failure after 10 years of use.
By choosing the UNS S66286 Nut, you not only gain exceptional mechanical properties but also ensure long-term stability and reliability in extreme environments.
Whether for gas turbines, boiler furnaces, or high-temperature pipeline flange connections, the UNS S66286 Nut is your most trusted choice.
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