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	Composition Range (%)	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
Alumínio (Al)	8.2 – 9.5	8.5 – 9.0	Forms strengthening precipitates
Ferro (Fe)	3,5 – 4,5	3.8 – 4.2	Enhances grain refinement
Manganês (Mn)	00,8 – 1,5	1.0 – 1.3	Improves deoxidation

2.2 Trace Element Limitations

Elemento	Maximum Limit (%)	Critical Control Point
Silício (Si)	0.10	Affects fluidity
Chumbo (Pb)	0.03	Toxicity control
Zinco (Zn)	0.20	Dezincification resistance
Fósforo (P)	00,05	Grain refinement
Enxofre (S)	00,05	Impurity control

3. Mechanical Properties Standards

3.1 Room Temperature Mechanical Properties

Propriedade	Mínimo	Máximo	Método de teste
Resistência à tração (MPa)	650	790	ASTM E8
Força de rendimento (MPa)	280	450	ASTM E8
Alongamento (%)	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)	Resistência à tração (MPa)	Força de rendimento (MPa)	Alongamento (%)
20	720	350	15
100	680	330	16
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

Propriedade	Valor	Units	Método de teste
Densidade	7.58	g/cm³	ASTM B311
Intervalo de fusão	1045-1080	°C	DSC Analysis
Calor específico	0.377	kJ/kg·K	ASTM E1269
Condutividade térmica	45	W/m·K	ASTM E1530
Resistividade elétrica	12.8	μΩ·cm	ASTM B193
Magnetic Permeability	1.05	–	ASTM A342

4.2 Thermal Properties

Propriedade	Temperature Range (°C)	Valor	Units
Coeficiente de Expansão Térmica	20-100	16.2	μm/m·K
Coeficiente de Expansão Térmica	20-200	16.8	μm/m·K
Coeficiente de Expansão Térmica	20-300	17.3	μm/m·K
Capacidade Específica de Calor	20-100	0.377	kJ/kg·K
Thermal Diffusivity	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

Dimensão	Faixa de tamanho	Tolerância	Método de inspeção
Outside Diameter	≤ 50mm	±0.25mm	Micrometer
Outside Diameter	> 50mm	±0.5%	Caliper
Espessura da parede	All	±10%	Ultrasonic
Comprimento	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

Classe	Ra Value (μm)	Inscrição	Método de inspeção
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	Polimento
Pits	0.2mm	3mm	Not Required
Dents	Not Allowed	–	Rejection
Tool Marks	0.05mm	10mm	Polimento

7. Quality Control Standards

7.1 Required Testing Procedures

Test Type	Padrão	Frequency	Acceptance Criteria
Análises químicas	ASTM E478	Per Heat	Within Composition Limits
Tensile Testing	ASTM E8	Per Lot	Meet Mechanical Properties
Hardness Testing	ASTM E10	Per Lot	Within Specified Range
Teste ultrassônico	ASTM E213	100%	No Reportable Indications
Hydrostatic Testing	ASTM E498	100%	No Leakage
Visual Inspection	ASTM B666	100%	No Visual Defects

7.2 Non-Destructive Testing Requirements

NDT Method	Padrão	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

Processo	Temperature Range (°C)	Time (Hours)	Método de resfriamento
Solution Annealing	870-900	1-2	Water Quench
Alívio de estresse	350-400	2-3	Air Cool
Endurecimento da idade	450-500	2-4	Air Cool
Homogeneização	750-800	4-6	Furnace Cool

8.2 Post-Heat Treatment Properties

Propriedade	As-Cast	Solution Annealed	Age Hardened
Resistência à tração (MPa)	550-650	650-750	700-800
Força de rendimento (MPa)	250-300	280-350	350-450
Alongamento (%)	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 teste
Água do mar	20	00,025	ASTM G31
Fresh Water	20	0.013	ASTM G31
3% NaCl	20	0.028	ASTM G31
10% H₂SO₄	20	0.15	ASTM G31
Atmosfera Industrial	20	0.008	ASTM G50

9.2 Galvanic Compatibility

Coupled Material	Galvanic Potential (mV)	Compatibility Rating
Aço Inoxidável 316	+50	Bom
Aço carbono	-300	Pobre
Monéis 400	+30	Excelente
Titânio	+200	Justo
Alumínio Bronze	-20	Excelente

10. Industry-Specific Standards

10.1 Marine Industry Requirements

Padrão	Organization	Requirements	Inscrição
NACE MR0175	NACE	Sour Service	Offshore
DNV-GL Rules	DNV-GL	Marine Grade	Construção naval
ABS Rules	abdômen	Marine Grade	Naval Vessels
Lloyd’s Register	LR	Marine Grade	Commercial Marine

10.2 Pressure Equipment Standards

Padrão	Região	Pressure Rating	Faixa de temperatura
ASME B31.3	Internacional	Class 150-300	-29°C to 260°C
PED 2014/68/EU	Europa	Category I-IV	-10°C to 200°C
AS1210	Austrália	Class 150-300	-20°C to 200°C
JIS B8285	Japão	K10-K20	-10°C to 200°C

11. Certification Requirements

11.1 Material Certification Types

Certificate Type	Padrão	Content	Inscrição
3.1 Certificate	EN 10204	Chemical & Mechanical	Padrão
3.2 Certificate	EN 10204	Third Party Verified	Critical Service
Type Test	ASTM A450	Production Testing	Qualification
PMI Certificate	ASTM E1916	Material Verification	Special Cases

11.2 Quality System Requirements

Sistema	Padrão	Alcance	Audit Frequency
ISO 9001	Quality Management	Full System	Annual
ISO 14001	Environmental	Environmental Impact	Annual
ISO 45001	Safety	Occupational Health	Annual
API Q1	Oil & Gas	Product Quality	Biennial

12. Storage and Handling Standards

12.1 Storage Requirements

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

12.2 Handling Specifications

Operation	Equipment	Procedure	Requisitos de segurança
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	Inspeção Regular

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.