A comprehensive comparison guide for Nickel Aluminum Bronze (NAB) tubes – C95800, C63200, and C95500. Detailed analysis of chemical composition, mechanical properties, corrosion resistance, and application-specific recommendations for marine, chemical processing, and industrial uses.

1. Chemical Composition Analysis

1.1 Primary Chemical Composition

The precise control of alloying elements significantly influences mechanical properties, corrosion resistance, and overall performance. Each element serves specific functions in the alloy:

요소C95800 (%)C63200 (%)C95500 (%)Impact on Properties
구리79.0-82.081.0-83.078.0-82.0Base metal matrix
알루미늄(Al)8.5-9.58.5-9.58.2-9.5Strength enhancement
니켈(Ni)4.0-5.04.0-4.83.0-5.5내식성
철(Fe)3.5-4.53.5-4.33.5-4.5Grain refinement
망간(Mn)0.8-1.51.2-2.00.8-1.5Deoxidation

1.2 Trace Elements Control

요소C95800C63200C95500Critical Control
실리콘(Si)0.100.100.10Fluidity control
납(Pb)0.030.020.03Toxicity limit
아연(Zn)0.200.200.20Corrosion control
기타 합계0.500.500.50품질 관리

2. 기계적 성질

2.1 Room Temperature Properties

재산C95800C63200C95500Test Standard
인장 강도(MPa)585-760640-720650-790ASTM E8
항복강도(MPa)270-380280-380280-450ASTM E8
신장률(%)15 min15 min15 minASTM E8
경도(브리넬)160-190160-200170-210ASTM E10
Impact Strength (J)343434ASTM E23

2.2 Elevated Temperature Properties

온도(°C)재산C95800C63200C95500
100인장 강도(MPa)550650680
100항복강도(MPa)250310330
200인장 강도(MPa)480600630
300인장 강도(MPa)410520550

3. Physical Properties

3.1 Basic Physical Properties

재산C95800C63200C95500단위
밀도7.647.457.58g/cm³
녹는 범위1040-10801030-10601045-1080°C
열 전도성384245W/m·K
전기 저항13.513.312.8μΩ·cm
탄성계수115110113평점

3.2 Thermal Expansion

Temperature Range (°C)C95800C63200C95500단위
20-10016.216.416.2μm/m·K
20-30017.317.517.3μm/m·K

4. Corrosion Resistance

4.1 Corrosion Rates in Various Environments

환경C95800 (mm/year)C63200 (mm/year)C95500 (mm/year)
바닷물0.0250.0250.025
민물0.0130.0130.013
3% NaCl0.0280.0280.028
산업적인 분위기0.0080.0080.008

4.2 Environmental Resistance Ratings (1-10 Scale)

환경C95800C63200C95500노트
선박999All excellent
화학 처리878C95800/C95500 preferred
High Temperature788C63200/C95500 preferred
Erosion988C95800 superior
Cavitation878C95800/C95500 better

5. Application Suitability

5.1 Industry-Specific Applications

산업C95800C63200C95500Best Choice
Marine Propulsion훌륭한좋은훌륭한C95800/C95500
화학 처리매우 좋은좋은훌륭한C95500
Oil & Gas훌륭한매우 좋은훌륭한C95800/C95500
발전매우 좋은훌륭한훌륭한C95500
채광좋은매우 좋은훌륭한C95500

5.2 Service Condition Ratings

Service ConditionC95800C63200C95500Comments
High Pressure8/109/109/10All suitable
High Temperature7/108/109/10C95500 best
Corrosive Media9/108/109/10C95800/C95500
내마모성8/107/108/10C95800/C95500

6. Manufacturing Considerations

6.1 Processing Parameters

프로세스C95800C63200C95500노트
Hot Working Temp (°C)760-870760-870760-870Similar ranges
Annealing Temp (°C)650-750650-750650-750Similar ranges
Stress Relief Temp (°C)350-400350-400350-400Similar ranges
가공성 등급403538(% of C36000)

6.2 Welding Characteristics

Welding ProcessC95800C63200C95500Filler Metal
GTAW훌륭한매우 좋은훌륭한ERCuNiAl
GMAW매우 좋은좋은매우 좋은ERCuNiAl
SMAW좋은좋은좋은ECuNiAl

7. Selection Guidelines

7.1 Primary Selection Criteria

요구 사항Best ChoiceSecond Choice노트
Highest StrengthC95500C95800For critical applications
Best Corrosion ResistanceC95800C95500Marine environments
Cost EffectivenessC63200C95500Standard applications
High Temperature UseC95500C63200Above 200°C

7.2 Application-Specific Recommendations

  1. 해양 애플리케이션
  • First choice: C95800 for best overall corrosion and erosion resistance
  • Alternative: C95500 when higher strength is required
  • Consider C63200 for cost-sensitive applications
  1. 화학 처리
  • Primary choice: C95500 for high-temperature applications
  • Alternative: C95800 for superior corrosion resistance
  • C63200 suitable for less demanding conditions
  1. General Industrial Use
  • Standard choice: C63200 for good all-around properties
  • Upgrade to C95500 for higher stress applications
  • Consider C95800 when corrosion resistance is critical

결론

Selection Priorities:

  1. Operating environment conditions
  2. Mechanical property requirements
  3. Temperature service conditions
  4. Manufacturing requirements
  5. Cost considerations

Grade Summary:

  • C95800: Optimal for marine and high-erosion environments
  • C95500: Best for high-strength and high-temperature applications
  • C63200: Cost-effective choice for general industrial use