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Key Advantages of Stainless Steel VS Aluminum

~ Unmatched Durability
Higher Strength: Stainless steel (304) offers 2-3x greater tensile strength (500-700 MPa) vs. aluminum (200-300 MPa), ensuring stability under repeated pressure cycles (critical for ≥2.0 ATA chambers).
Resists Deformation: Less prone to stress fatigue or micro-cracks compared to aluminum, which may warp over time.
~ Superior Corrosion Resistance
Safe for High-Oxygen Environments: Does not oxidize or degrade in 95%+ O₂ settings (unlike aluminum, which forms porous oxide layers).
Withstands Frequent Sterilization: Compatible with harsh disinfectants (e.g., hydrogen peroxide), while aluminum corrodes with chlorine-based cleaners.
~ Enhanced Safety
Fire-Resistant: Melting point >1400°C (vs. aluminum’s 660°C), critical for high-pressure pure oxygen use (NFPA 99 compliant).
~ Longer Lifespan
20+ years of service life (vs. 10-15 years for aluminum), especially at weld points where aluminum fatigues faster.
~ Hygienic & Low-Maintenance
Mirror-polished surface (Ra≤0.8μm): Reduces bacterial adhesion and simplifies cleaning.