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:

ÉlémentC95800 (%)C63200 (%)C95500 (%)Impact on Properties
Cuivre79.0-82.081.0-83.078.0-82.0Base metal matrix
Aluminium (Al)8,5-9,58,5-9,58.2-9.5Strength enhancement
Nickel (Ni)4.0-5.04.0-4.83,0-5,5mais il y a des limites
Fer (Fe)3,5-4,53.5-4.33,5-4,5Grain refinement
Manganèse (Mn)0.8-1.51.2-2.00.8-1.5Deoxidation

1.2 Trace Elements Control

ÉlémentC95800C63200C95500Critical Control
Silicium (Si)0.dix0.dix0.dixFluidity control
Plomb (Pb)0.030.020.03Toxicity limit
Zinc (Zn)0.200.200.20Corrosion control
Autres Total0.500.500.50Quality control

2. Propriétés mécaniques

2.1 Room Temperature Properties

PropriétéC95800C63200C95500Test Standard
Résistance à la traction (MPa)585-760640-720650-790ASTM E8
Limite d'élasticité (MPa)270-380280-380280-450ASTM E8
Allongement (%)15 min15 min15 minASTM E8
Dureté (Brinell)160-190160-200170-210ASTM E10
Impact Strength (J)343434ASTM E23

2.2 Elevated Temperature Properties

Température (°C)PropriétéC95800C63200C95500
100Résistance à la traction (MPa)550650680
100Limite d'élasticité (MPa)250310330
200Résistance à la traction (MPa)480600630
300Résistance à la traction (MPa)410520550

3. Physical Properties

3.1 Basic Physical Properties

PropriétéC95800C63200C95500Units
Densité7,647h457.58g/cm³
Plage de fusion1040-108010h30-10h601045-1080°C
Conductivité thermique384245W/m·K
Résistivité électrique13.513.312.8μΩ·cm
Propriétés mécaniques de l'acier à outils AISI HSS M2115110113GPa

3.2 Thermal Expansion

Temperature Range (°C)C95800C63200C95500Units
20-10016.216.416.2µm/m·K
20-30017.317.517.3µm/m·K

4. Corrosion Resistance

4.1 Corrosion Rates in Various Environments

EnvironnementC95800 (mm/year)C63200 (mm/year)C95500 (mm/year)
Eau de mer0.0250.0250.025
Eau douce0.0130.0130.013
3% NaCl0.0280.0280.028
Ambiance industrielle0.0080.0080.008

4.2 Environmental Resistance Ratings (1-10 Scale)

EnvironnementC95800C63200C95500Remarques
Marin999All excellent
Traitement chimique878C95800/C95500 preferred
High Temperature788C63200/C95500 preferred
Erosion988C95800 superior
Cavitation878C95800/C95500 better

5. Application Suitability

5.1 Industry-Specific Applications

IndustrieC95800C63200C95500Best Choice
Marine PropulsionExcellentBonExcellentC95800/C95500
Traitement chimiqueTrès bienBonExcellentC95500
Oil & GasExcellentTrès bienExcellentC95800/C95500
La production d'énergieTrès bienExcellentExcellentC95500
Exploitation minièreBonTrès bienExcellentC95500

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
Résistance à l'usure8/107/108/10C95800/C95500

6. Manufacturing Considerations

6.1 Processing Parameters

TraiterC95800C63200C95500Remarques
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
Cote d'usinabilité403538(% of C36000)

6.2 Welding Characteristics

Welding ProcessC95800C63200C95500Filler Metal
l'alliage est que le métal fondu et les pièces thermiquement détériorées conservent toujours la même résistance à la corrosionExcellentTrès bienExcellentERCuNiAl
l'alliage est que le métal fondu et les pièces thermiquement détériorées conservent toujours la même résistance à la corrosionTrès bienBonTrès bienERCuNiAl
l'alliage est que le métal fondu et les pièces thermiquement détériorées conservent toujours la même résistance à la corrosionBonBonBonECuNiAl

7. Selection Guidelines

7.1 Primary Selection Criteria

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

7.2 Application-Specific Recommendations

  1. Applications marines
  • First choice: C95800 for best overall corrosion and erosion resistance
  • Alternative: C95500 when higher strength is required
  • Consider C63200 for cost-sensitive applications
  1. Traitement chimique
  • 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

Conclusion

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