C63200 Nickel Aluminum Bronze Tubes: Comprehensive Technical Analysis and Performance Characteristics

1. Introduction to C63200 Alloy

C63200 nickel aluminum bronze is a high-strength copper-based alloy known for its exceptional mechanical properties and corrosion resistance. This analysis provides detailed information about its characteristics, specifications, and applications.

2. Chemical Composition

The precise chemical composition according to ASTM standards:

Elemento	Rango de composición (%)	Optimal Range (%)
Cobre	81.0 – 83.0	82.0
Aluminio (Al)	8,5 – 9,5	9.0
Níquel (Ni)	4.0 – 4.8	4.5
Hierro (Fe)	3.5 – 4.3	4.0
Manganeso (Mn)	1,2 – 2,0	1.5
Silicio (Si)	0.10 máx.	0.05
Plomo (Pb)	00,02 máx.	0.01
Cinc (Zn)	0.20 máx.	0.10

3. Mechanical Properties

3.1 Standard Mechanical Properties at Room Temperature

Propiedad	Unidades metricas	Imperial Units
Resistencia a la tracción	640-720 MPa	93-104 ksi
Límite elástico (compensación del 0,2%)	280-380 MPa	41-55 ksi
Elongation in 50mm	15% min	15% min
Reducción de área	20% min	20% min
Dureza (Brinell)	160-200 HB	160-200 HB
Impact Strength (Charpy V-notch)	34 J	25 ft-lb

3.2 Temperature-Dependent Properties

Temperatura (°C)	Resistencia a la tracción (MPa)	Límite elástico (MPa)	Elongación (%)
-196	850	420	12
20	680	330	15
100	650	310	dieciséis
200	600	280	18
300	520	250	20
400	400	200	25

4. Physical Properties

Propiedad	Valor	Unidades
Densidad	7.45	S45c
Intervalo de fusión	1030-1060	° C
Calor especifico	0.377	kJ/kg·K
Conductividad térmica	42	W/m·K
Resistividad electrica	13.3	μΩ·cm
Módulo de elasticidad	110	GPa
El coeficiente de Poisson	0.33	-
Permeabilidad magnética	1.05	-

5. Dimensional Specifications

5.1 Standard Tube Sizes

Nominal OD (mm)	Wall Thickness Range (mm)	Standard Lengths (m)
12.7 – 25.4	1.2 – 3.2	3, 6
31.8 – 50.8	1.6 – 4.8	3, 6
63.5 – 101.6	2.1 – 6.4	3, 6
114.3 – 219.1	3.2 – 12.7	3, 6
273.0 – 406.4	4.8 – 19.1	3, 6

5.2 Tolerances

estado de entrega	Tolerance Range
Outside Diameter	±0.25mm up to 50mm OD
pero debido a su alto contenido de vanadio	±10%
Largo	+3mm, -0mm
Straightness	1.5mm per meter
Ovality	1% of OD max

6. Corrosion Resistance Properties

6.1 Corrosion Rates in Different Environments

Ambiente	Temperatura (°C)	Corrosion Rate (mm/year)
Agua de mar	20	0.025
Fresh Water	20	0.013
3% NaCl Solution	20	0.028
10% H₂SO₄	20	0.15
10% HCl	20	0.22
Ambiente industrial	20	0.008

6.2 Environmental Resistance Ratings

Ambiente	Rating (1-10)	Notas
Marina	9	Excellent resistance
Industrial	8	Very good resistance
Procesamiento químico	7	Good for most applications
High Temperature	8	Maintains properties well
Resistencia al desgaste	8	Superior to standard bronzes
Stress Corrosion	9	Highly resistant

7. Manufacturing and Processing

7.1 Fabrication Parameters

Proceso	Recommended Parameters
Temperatura de trabajo caliente	760-870°C
Temperatura de recocido	650-750°C
Temperatura de alivio del estrés	350-400°C
Maximum Operating Temperature	315°C

7.2 Welding Specifications

Welding Process	Recommended Parameters	Filler Metal
GTAW	DC Straight Polarity	ERCuNiAl
GMAW	DC Reverse Polarity	ERCuNiAl
SMAW	DC Reverse Polarity	ECuNiAl

8. Quality Control Requirements

8.1 Testing Requirements

Tipo de prueba	Estándar	Frecuencia
Análisis químico	ASTM E478	Per Heat
Pruebas de tracción	ASTM E8	Per Lot
Pruebas de dureza	ASTM E10	Per Lot
Pruebas ultrasónicas	ASTM E213	100%
Hydrostatic Testing	ASTM E498	100%

8.2 Surface Finish Requirements

Condición de la superficie	Roughness (Ra)	Solicitud
Standard Finish	3.2 μm	General Purpose
Smooth Finish	1.6 μm	Hydraulic Applications
Polished Finish	0.8 μm	Critical Flow Service
Mirror Finish	0.4 μm	Special Applications

9. Applications and Industry Standards

9.1 Industry-Specific Applications

Industria	Aplicaciones	Key Requirements
Marina	Propeller Shafts, Pump Housings	Resistencia a la corrosión
Oil & Gas	Valve Bodies, Bearings	Strength, Wear Resistance
Procesamiento químico	Heat Exchangers, Reactors	Chemical Resistance
Generación de energía	Pump Components, Fittings	Reliability, Durability
Minería	Wear Plates, Bushings	Abrasion Resistance

9.2 Applicable Standards

Estándar	Descripción	Alcance
ASTM B150	Standard Specification	Material Requirements
ASTM B271	Seamless Tubes	Fabricación
NACE MR0175	Sour Service	Oil & Gas Applications
ISO 9001	Gestión de la calidad	Process Control
DNV-GL	Marine Certification	Maritime Applications

10. Economic Considerations

10.1 Cost Factors

Factor	Impact Level	Consideration
Costo de Materia Prima	Alto	Market-dependent
Costo de procesamiento	Medio	Complex manufacturing
Installation Cost	Bajo	Standard procedures
Costo de mantenimiento	Bajo	Long service life
Life Cycle Cost	Favorable	Extended durability

This comprehensive analysis provides essential information for engineers, procurement specialists, and technical professionals working with C63200 nickel aluminum bronze tubes. The data presented should be verified for specific applications and operating conditions.