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:

ElementoC95800 (%)C63200 (%)C95500 (%)Impact on Properties
Cobre79,0-82,081,0-83,078,0-82,0Base metal matrix
Aluminio (Al)8,5-9,58,5-9,58.2-9.5Strength enhancement
Níquel (Ni)4.0-5.04.0-4.83.0-5.5Resistencia a la corrosión
Hierro (Fe)3,5-4,53.5-4.33,5-4,5Grain refinement
Manganeso (Mn)0.8-1.51.2-2.00.8-1.5Desoxidación

1.2 Trace Elements Control

ElementoC95800C63200C95500Critical Control
Silicio (Si)0.100.100.10Fluidity control
Plomo (Pb)0.030.020.03Toxicity limit
Cinc (Zn)0.200.200.20Corrosion control
Otros Totales0.500.500.50Quality control

2. Propiedades mecánicas

2.1 Room Temperature Properties

PropiedadC95800C63200C95500Estándar de prueba
Resistencia a la tracción (MPa)585-760640-720650-790ASTM E8
Límite elástico (MPa)270-380280-380280-450ASTM E8
Elongación (%)15 minutos15 minutos15 minutosASTM E8
Dureza (Brinell)160-190160-200170-210ASTM E10
Impact Strength (J)343434ASTM E23

2.2 Elevated Temperature Properties

Temperatura (°C)PropiedadC95800C63200C95500
100Resistencia a la tracción (MPa)550650680
100Límite elástico (MPa)250310330
200Resistencia a la tracción (MPa)480600630
300Resistencia a la tracción (MPa)410520550

3. Physical Properties

3.1 Basic Physical Properties

PropiedadC95800C63200C95500Unidades
Densidad7.647.457,58S45c
Intervalo de fusión1040-10801030-10601045-1080° C
Conductividad térmica384245W/m·K
Resistividad electrica13.513.312.8μΩ·cm
Módulo de elasticidad115110113GPa

3.2 Thermal Expansion

Rango de temperatura (°C)C95800C63200C95500Unidades
20-10016.216.416.2μm/m·K
20-30017.317,517.3μm/m·K

4. Corrosion Resistance

4.1 Corrosion Rates in Various Environments

AmbienteC95800 (mm/year)C63200 (mm/year)C95500 (mm/year)
Agua de mar0.0250.0250.025
Fresh Water0.0130.0130.013
3% NaCl0.0280.0280.028
Ambiente industrial0.0080.0080.008

4.2 Environmental Resistance Ratings (1-10 Scale)

AmbienteC95800C63200C95500Notas
Marina999All excellent
Procesamiento químico878C95800/C95500 preferred
High Temperature788C63200/C95500 preferred
Erosion988C95800 superior
Cavitation878C95800/C95500 better

5. Application Suitability

5.1 Industry-Specific Applications

IndustriaC95800C63200C95500Best Choice
Marine PropulsionExcelenteBienExcelenteC95800/C95500
Procesamiento químicoMuy bienBienExcelenteC95500
Oil & GasExcelenteMuy bienExcelenteC95800/C95500
Generación de energíaMuy bienExcelenteExcelenteC95500
MineríaBienMuy bienExcelenteC95500

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
Resistencia al desgaste8/107/108/10C95800/C95500

6. Manufacturing Considerations

6.1 Processing Parameters

ProcesoC95800C63200C95500Notas
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
Clasificación de maquinabilidad403538(% of C36000)

6.2 Welding Characteristics

Welding ProcessC95800C63200C95500Filler Metal
GTAWExcelenteMuy bienExcelenteERCuNiAl
GMAWMuy bienBienMuy bienERCuNiAl
SMAWBienBienBienECuNiAl

7. Selection Guidelines

7.1 Primary Selection Criteria

RequirementBest ChoiceSecond ChoiceNotas
Highest StrengthC95500C95800For critical applications
Best Corrosion ResistanceC95800C95500Marine environments
Cost EffectivenessC63200C95500Standard applications
High Temperature UseC95500C63200Above 200°C

7.2 Application-Specific Recommendations

  1. Aplicaciones Marinas
  • First choice: C95800 for best overall corrosion and erosion resistance
  • Alternative: C95500 when higher strength is required
  • Consider C63200 for cost-sensitive applications
  1. Procesamiento químico
  • 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

Conclusión

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