Views: 0 Author: Site Editor Publish Time: 2025-08-11 Origin: Site
Property | Cast Iron | Brass | Stainless Steel |
Density(g/cm³) | 7.2 | 8.4 | 7.9 |
Tensile Strength(MPa) | 250-400 (QT500) | 250-350 | 520-800 (316L) |
Damping Factor | 0.03-0.05 (best) | 0.01-0.02 | 0.005-0.01 (worst) |
Thermal Conductivity(W/m·K) | 40-55 | 109 | 15-20 |
Thermal Expansion(10⁻⁶/K) | 11 | 18 | 16-18 |
Corrosion Res | Requires coating | Resists moisture | Excellent |
Applications | General industry (≤315kW) | Marine/high cooling demand | Chemical/food/pharma |
Cost Ratio | 1.0 | 3.5 | 4.0 |
Technical Insights
1. Cast Iron Brackets
Key Advantages:
Vibration damping: Absorbs 80% vibration energy
Cost-effective: Suitable for complex shapes
Critical Risks:
Corrosion rate >0.3mm/year in coastal areas
Brittle fracture below -20℃
2. Brass Brackets
Unique Value:
Thermal management: Reduces motor temp by 15-20℃
EMI shielding: μ=1.26×10⁻⁶H/m
Limitations:
Stress corrosion in NH₃ environments
High material cost (15% of motor cost)
3. Stainless Steel Brackets
Technology Highlights:
Corrosion proof: >1000hrs salt spray test
Hygienic: Non-magnetic surface
Manufacturing Challenges:
Laser welding required
Work hardening during machining
