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

Élément	Plage de composition (%)	Preferred Range (%)	Effects on Properties
Cuivre	78.0 – 82.0	80.0 – 81.0	Base metal, provides matrix structure
Nickel (Ni)	3.0 – 5.5	4,0 – 5,0	Improves strength and corrosion resistance
Aluminium (Al)	8.2 – 9.5	8.5 – 9.0	Forms strengthening precipitates
Fer (Fe)	3,5 – 4,5	3.8 – 4.2	Enhances grain refinement
Manganèse (Mn)	00,8 – 1,5	1.0 – 1.3	Improves deoxidation

2.2 Trace Element Limitations

Élément	Maximum Limit (%)	Critical Control Point
Silicium (Si)	0.dix	Affects fluidity
Plomb (Pb)	0.03	Toxicity control
Zinc (Zn)	0.20	Dezincification resistance
Phosphore (P)	0.05	Grain refinement
Soufre (S)	0.05	Impurity control

3. Mechanical Properties Standards

3.1 Room Temperature Mechanical Properties

Propriété	Le minimum	Maximum	Méthode d'essai
Résistance à la traction (MPa)	650	790	ASTM E8
Limite d'élasticité (MPa)	280	450	ASTM E8
Allongement (%)	15	–	ASTM E8
Reduction in Area (%)	20	–	ASTM E8
Dureté (Brinell)	170	210	ASTM E10
Impact Strength (Joules)	34	–	ASTM E23

3.2 Elevated Temperature Properties

Température (°C)	Résistance à la traction (MPa)	Limite d'élasticité (MPa)	Allongement (%)
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

Propriété	Valeur	Unités	Méthode d'essai
Densité	7.58	g/cm³	ASTM B311
Plage de fusion	1045-1080	°C	DSC Analysis
Chaleur spécifique	0.377	kJ/kg·K	ASTM E1269
Conductivité thermique	45	W/m·K	ASTM E1530
Résistivité électrique	12.8	μΩ·cm	ASTM B193
Perméabilité magnétique	1.05	–	ASTM A342

4.2 Thermal Properties

Propriété	Temperature Range (°C)	Valeur	Unités
Coefficient de dilatation thermique	20-100	16.2	µm/m·K
Coefficient de dilatation thermique	20-200	16.8	µm/m·K
Coefficient de dilatation thermique	20-300	17.3	µm/m·K
La capacité thermique spécifique	20-100	0.377	kJ/kg·K
Diffusivité thermique	20-100	15.8	mm²/s

5. Dimensional Standards

5.1 Standard Tube Dimensions

Diamètre extérieur nominal (mm)	Wall Thickness Options (mm)	Longueurs standards (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

Dimension	Gamme de tailles	Tolérance	Inspection Method
Diamètre extérieur	≤ 50mm	±0.25mm	Micrometer
Diamètre extérieur	> 50mm	±0.5%	Caliper
Épaisseur du mur	All	±10%	Ultrasonic
Longueur	All	+3 mm, -0 mm	Tape Measure
Rectitude	All	1.5mm/m	Straightedge
Ovalité	All	1% of OD	Dial Gauge

6. Surface Finish Requirements

6.1 Surface Finish Classifications

Classer	Ra Value (μm)	Application	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	Polissage
Pits	0.2mm	3mm	Not Required
Dents	Not Allowed	–	Rejection
Tool Marks	0.05mm	10mm	Polissage

7. Quality Control Standards

7.1 Required Testing Procedures

Type d'essai	Standard	Fréquence	Acceptance Criteria
Analyse chimique	ASTM E478	Par manche	Within Composition Limits
Essais de traction	ASTM E8	Par lot	Meet Mechanical Properties
Test de dureté	ASTM E10	Par lot	Within Specified Range
Tests par ultrasons	ASTM E213	100%	No Reportable Indications
Essais hydrostatiques	ASTM E498	100%	No Leakage
Inspection visuelle	ASTM B666	100%	No Visual Defects

7.2 Non-Destructive Testing Requirements

NDT Method	Standard	Coverage	Acceptance Level
Ultrasonic	ASTM E213	100%	Class 1
Penetrant	ASTM E165	Au besoin	Level 2
Radiographic	ASTM E1742	Au besoin	Level 2
Eddy Current	ASTM E243	Optional	Class 1

8. Heat Treatment Standards

8.1 Heat Treatment Parameters

Traiter	Temperature Range (°C)	Time (Hours)	Méthode de refroidissement
Solution Annealing	870-900	1-2	Water Quench
Soulagement du stress	350-400	2-3	Air Cool
Durcissement lié au vieillissement	450-500	2-4	Air Cool
Homogénéisation	750-800	4-6	Furnace Cool

8.2 Post-Heat Treatment Properties

Propriété	As-Cast	Solution Recuit	Age Hardened
Résistance à la traction (MPa)	550-650	650-750	700-800
Limite d'élasticité (MPa)	250-300	280-350	350-450
Allongement (%)	12-15	15-18	10-15
Dureté (HB)	150-170	170-190	190-220

9. Corrosion Resistance Standards

9.1 Corrosion Rate Data

Environnement	Température (°C)	Taux de corrosion (mm/an)	Méthode d'essai
Eau de mer	20	0.025	ASTM G31
Eau douce	20	0.013	ASTM G31
3% NaCl	20	0.028	ASTM G31
10 % H₂SO₄	20	0.15	ASTM G31
Ambiance industrielle	20	0.008	ASTM G50

9.2 Galvanic Compatibility

Coupled Material	Galvanic Potential (mV)	Compatibility Rating
Acier inoxydable 316	+50	Bon
Acier Carbone	-300	Ouvrage écroui par laminage puis stabilisé par traitement thermique à basse température jusqu'au quart de dur
Monels 400	+30	Excellent
Titane	+200	Équitable
Aluminium Bronze	-20	Excellent

10. Industry-Specific Standards

10.1 Marine Industry Requirements

Standard	Organization	Le test de pliage est l'élément principal pour mesurer les performances du processus de la tôle	Application
NACE MR0175	NACE	Service aigre	Offshore
DNV-GL Rules	DNV-GL	Marine Grade	Shipbuilding
ABS Rules	abdos	Marine Grade	Naval Vessels
Lloyd’s Register	G / D	Marine Grade	Commercial Marine

10.2 Pressure Equipment Standards

Standard	Région	Pressure Rating	Plage de température
ASME B31.3	International	Class 150-300	-29°C to 260°C
DESP 2014/68/UE	L'Europe 	Category I-IV	-10°C to 200°C
AS1210	Australie	Class 150-300	-20°C to 200°C
JIS B8285	Japon	K10-K20	-10°C to 200°C

11. Certification Requirements

11.1 Material Certification Types

Type de certificat	Standard	Teneur	Application
3.1 Certificate	EN 10204	Chemical & Mechanical	Standard
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

Système	Standard	Portée	Audit Frequency
OIN 9001	L'objectif d'ISO9001 est	Full System	Annual
ISO 14001	Environmental	Impact environnemental	Annual
ISO 45001	Sécurité	Occupational Health	Annual
API Q1	Oil & Gas	Product Quality	Biennial

12. Storage and Handling Standards

12.1 Storage Requirements

Aspect	Exigence	Monitoring	Documentation
Température	10-30°C	Daily	Log Sheet
Humidité	<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	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.