High-Performance C95500 Nickel Aluminum Bronze Tubes: Comprehensive Material Standards Analysis

1. Introduction to C95500 Nickel Aluminum Bronze

C95500 is a premium grade nickel aluminum bronze alloy known for its exceptional strength, corrosion resistance, and reliability in demanding applications. This comprehensive analysis covers all aspects of material standards and specifications for C95500 tubes.

2. Chemical Composition Standards

2.1 Primary Composition Requirements

Elemento	Rango de composición (%)	Preferred Range (%)	Effects on Properties
Cobre	78.0 – 82.0	80.0 – 81.0	Base metal, provides matrix structure
Níquel (Ni)	3.0 – 5.5	4,0 – 5,0	Improves strength and corrosion resistance
Aluminio (Al)	8.2 – 9.5	8.5 – 9.0	Forms strengthening precipitates
Hierro (Fe)	3,5 – 4,5	3.8 – 4.2	Enhances grain refinement
Manganeso (Mn)	0.8 – 1.5	1.0 – 1.3	Improves deoxidation

2.2 Trace Element Limitations

Elemento	Maximum Limit (%)	Critical Control Point
Silicio (Si)	0.10	Affects fluidity
Plomo (Pb)	0.03	Toxicity control
Cinc (Zn)	0.20	Dezincification resistance
Fósforo (P)	0.05	Grain refinement
Azufre (S)	0.05	Impurity control

3. Mechanical Properties Standards

3.1 Room Temperature Mechanical Properties

Propiedad	Mínimo	Máximo	Método de prueba
Resistencia a la tracción (MPa)	650	790	ASTM E8
Límite elástico (MPa)	280	450	ASTM E8
Elongación (%)	15	-	ASTM E8
Reduction in Area (%)	20	-	ASTM E8
Dureza (Brinell)	170	210	ASTM E10
Impact Strength (Joules)	34	-	ASTM E23

3.2 Elevated Temperature Properties

Temperatura (°C)	Resistencia a la tracción (MPa)	Límite elástico (MPa)	Elongación (%)
20	720	350	15
100	680	330	dieciséis
200	630	300	18
300	550	270	20
400	450	230	22
500	350	180	25

4. Physical Properties Standards

4.1 Basic Physical Properties

Propiedad	Valor	Unidades	Método de prueba
Densidad	7,58	S45c	ASTM B311
Intervalo de fusión	1045-1080	° C	DSC Analysis
Calor especifico	0.377	kJ/kg·K	ASTM E1269
Conductividad térmica	45	W/m·K	ASTM E1530
Resistividad electrica	12.8	μΩ·cm	ASTM B193
Permeabilidad magnética	1.05	-	ASTM A342

4.2 Thermal Properties

Propiedad	Rango de temperatura (°C)	Valor	Unidades
Coeficiente de expansión térmica	20-100	16.2	μm/m·K
Coeficiente de expansión térmica	20-200	16.8	μm/m·K
Coeficiente de expansión térmica	20-300	17.3	μm/m·K
Capacidad calorífica específica	20-100	0.377	kJ/kg·K
Difusividad Térmica	20-100	15.8	mm²/s

5. Dimensional Standards

5.1 Standard Tube Dimensions

Nominal OD (mm)	Wall Thickness Options (mm)	Standard Lengths (m)	Weight (kg/m)
15.88 – 25.4	1.65, 2.11, 3.38	3, 6	0.6 – 1.8
31.75 – 50.8	2.11, 3.18, 4.78	3, 6	1.5 – 5.2
63.5 – 101.6	3.18, 4.78, 6.35	3, 6	4.8 – 15.3
114.3 – 219.1	4.78, 6.35, 12.7	3, 6	13.2 – 65.8
273.0 – 406.4	6.35, 12.7, 19.1	3, 6	41.5 – 182.6

5.2 Manufacturing Tolerances

estado de entrega	Rango de tamaño	Tolerancia	Inspection Method
Outside Diameter	≤ 50mm	±0.25mm	Micrometer
Outside Diameter	> 50mm	±0.5%	Caliper
pero debido a su alto contenido de vanadio	All	±10%	Ultrasonic
Largo	All	+3mm, -0mm	Tape Measure
Straightness	All	1.5mm/m	Straightedge
Ovality	All	1% of OD	Dial Gauge

6. Surface Finish Requirements

6.1 Surface Finish Classifications

Clase	Ra Value (μm)	Solicitud	Inspection Method
Class A	0.4 – 0.8	Critical Flow	Profilometer
Class B	0.8 – 1.6	General Hydraulic	Visual + Measurement
Class C	1.6 – 3.2	Standard Industrial	Visual
Class D	3.2 – 6.3	Non-Critical	Visual

6.2 Surface Defect Tolerances

Defect Type	Maximum Allowable Depth	Maximum Length	Repair Method
Scratches	0.1mm	25mm	Pulido
Pits	0.2mm	3mm	Not Required
Dents	Not Allowed	-	Rejection
Tool Marks	0.05mm	10mm	Pulido

7. Quality Control Standards

7.1 Required Testing Procedures

Tipo de prueba	Estándar	Frecuencia	Criterios de aceptación
Análisis químico	ASTM E478	Per Heat	Within Composition Limits
Pruebas de tracción	ASTM E8	Per Lot	Meet Mechanical Properties
Pruebas de dureza	ASTM E10	Per Lot	Within Specified Range
Pruebas ultrasónicas	ASTM E213	100%	No Reportable Indications
Hydrostatic Testing	ASTM E498	100%	No Leakage
Inspección visual	ASTM B666	100%	No Visual Defects

7.2 Non-Destructive Testing Requirements

NDT Method	Estándar	Coverage	Acceptance Level
Ultrasonic	ASTM E213	100%	Class 1
Penetrant	ASTM E165	As Required	Level 2
Radiographic	ASTM E1742	As Required	Level 2
Eddy Current	ASTM E243	Optional	Class 1

8. Heat Treatment Standards

8.1 Heat Treatment Parameters

Proceso	Rango de temperatura (°C)	Time (Hours)	Cooling Method
Recocido de solución	870-900	1-2	Water Quench
El alivio del estrés	350-400	2-3	Air Cool
Endurecimiento de la edad	450-500	2-4	Air Cool
Homogeneización	750-800	4-6	Furnace Cool

8.2 Post-Heat Treatment Properties

Propiedad	As-Cast	Solution Annealed	Age Hardened
Resistencia a la tracción (MPa)	550-650	650-750	700-800
Límite elástico (MPa)	250-300	280-350	350-450
Elongación (%)	12-15	15-18	10-15
Dureza (HB)	150-170	170-190	190-220

9. Corrosion Resistance Standards

9.1 Corrosion Rate Data

Ambiente	Temperatura (°C)	Corrosion Rate (mm/year)	Método de prueba
Agua de mar	20	0.025	ASTM G31
Fresh Water	20	0.013	ASTM G31
3% NaCl	20	0.028	ASTM G31
10% H₂SO₄	20	0.15	ASTM G31
Ambiente industrial	20	0.008	ASTM G50

9.2 Galvanic Compatibility

Coupled Material	Galvanic Potential (mV)	Compatibility Rating
Acero inoxidable 316	+50	Bien
S45c	-300	Pobre
Monels 400	+30	Excelente
Titanio	+200	Justo
Bronce Aluminio	-20	Excelente

10. Industry-Specific Standards

10.1 Marine Industry Requirements

Estándar	Organization	Requisitos	Solicitud
NACE MR0175	NACE	Sour Service	Costa afuera
DNV-GL Rules	DNV-GL	Marine Grade	Shipbuilding
ABS Rules	abdominales	Marine Grade	Naval Vessels
Lloyd’s Register	LR	Marine Grade	Commercial Marine

10.2 Pressure Equipment Standards

Estándar	Region	Pressure Rating	Rango de temperatura
ASME B31.3	International	Class 150-300	-29°C to 260°C
DEP 2014/68/UE	Europa	Category I-IV	-10°C to 200°C
AS1210	Australia	Class 150-300	-20°C to 200°C
JIS B8285	Japón	K10-K20	-10°C to 200°C

11. Certification Requirements

11.1 Material Certification Types

Tipo de certificado	Estándar	Contenido	Solicitud
3.1 Certificate	EN 10204	Chemical & Mechanical	Estándar
3.2 Certificate	EN 10204	Third Party Verified	Critical Service
Type Test	ASTM A450	Production Testing	Qualification
PMI Certificate	ASTM E1916	Verificación de materiales	Special Cases

11.2 Quality System Requirements

Sistema	Estándar	Alcance	Audit Frequency
ISO 9001	Gestión de la calidad	Full System	Anual
ISO 14001	Environmental	Impacto ambiental	Anual
ISO 45001	Seguridad	Occupational Health	Anual
API Q1	Oil & Gas	Product Quality	Biennial

12. Storage and Handling Standards

12.1 Storage Requirements

Aspecto	Requirement	Monitoring	Documentación
Temperatura	10-30°C	Daily	Log Sheet
Humidity	<60% RH	Daily	Log Sheet
Stacking	Max 3 Layers	Per Movement	Inspection Report
Protección	UV Protected	Monthly	Condition Report

12.2 Handling Specifications

Operation	Equipment	Procedure	Safety Requirements
Loading	Crane/Forklift	Standard Lift	PPE Required
Transport	Cushioned Rack	Secured Load	Load Testing
Unloading	Crane/Forklift	Controlled Lower	Safety Zone
Storage	Rack System	Organized Stack	Regular Inspection

This comprehensive analysis of C95500 nickel aluminum bronze tubes provides detailed material standards and specifications for engineering, procurement, and quality control purposes. All specifications should be verified against current standards and specific project requirements.