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
| Elemen | Rentang Komposisi (%) | Preferred Range (%) | Effects on Properties |
|---|---|---|---|
| Tembaga | 78.0 – 82.0 | 80.0 – 81.0 | Base metal, provides matrix structure |
| Nikel (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 |
| Besi (Fe) | 3.5 – 4.5 | 3.8 – 4.2 | Enhances grain refinement |
| Mangan (Mn) | 0.8 – 1.5 | 1.0 – 1.3 | Improves deoxidation |
2.2 Trace Element Limitations
| Elemen | Maximum Limit (%) | Critical Control Point |
|---|---|---|
| Silikon (Si) | 0.10 | Affects fluidity |
| Timbal (Pb) | 0.03 | Toxicity control |
| Seng (Zn) | 0.20 | Resistensi terhadap dezincifikasi |
| Fosfor (P) | 00,05 | Penyempurnaan biji-bijian |
| Belerang (S) | 00,05 | Kontrol pengotor |
3. Mechanical Properties Standards
3.1 Room Temperature Mechanical Properties
| Milik | Minimum | Maksimum | Metode Tes |
|---|---|---|---|
| Kekuatan Tarik (MPa) | 650 | 790 | ASTM E8 |
| Kekuatan Hasil (MPa) | 280 | 450 | ASTM E8 |
| Perpanjangan (%) | 15 | - | ASTM E8 |
| Reduction in Area (%) | 20 | - | ASTM E8 |
| Kekerasan (Brinell) | 170 | 210 | ASTM E10 |
| Impact Strength (Joules) | 34 | - | ASTM E23 |
3.2 Elevated Temperature Properties
| Suhu (°C) | Kekuatan Tarik (MPa) | Kekuatan Hasil (MPa) | Perpanjangan (%) |
|---|---|---|---|
| 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
| Milik | Nilai | Satuan | Metode Tes |
|---|---|---|---|
| Kepadatan | 7.58 | g/cm | ASTM B311 |
| Rentang lebur | 1045-1080 | °C | Analisis DSC |
| Panas Spesifik | 0.377 | kJ/kg·K | ASTM E1269 |
| Konduktivitas termal | 45 | W/m·K | ASTM E1530 |
| Resistivitas Listrik | 12.8 | μΩ·cm | ASTM B193 |
| Permeabilitas Magnetik | 1.05 | - | ASTM A342 |
4.2 Thermal Properties
| Milik | Kisaran Suhu (°C) | Nilai | Satuan |
|---|---|---|---|
| Thermal Expansion Coefficient | 20-100 | 16.2 | m/m·K |
| Thermal Expansion Coefficient | 20-200 | 16.8 | m/m·K |
| Thermal Expansion Coefficient | 20-300 | 17.3 | m/m·K |
| Kapasitas Panas Spesifik | 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
| Dimensi | Rentang Ukuran | Toleransi | Inspection Method |
|---|---|---|---|
| Outside Diameter | ≤ 50mm | ±0.25mm | Micrometer |
| Outside Diameter | > 50mm | ±0.5% | Caliper |
| Ketebalan dinding | All | ±10% | Ultrasonic |
| Panjang | 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
| Class | Ra Value (μm) | Aplikasi | 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
| Jenis Cacat | Maximum Allowable Depth | Maximum Length | Repair Method |
|---|---|---|---|
| Scratches | 0.1mm | 25mm | pemolesan |
| Pits | 0.2mm | 3mm | Not Required |
| Dents | Not Allowed | - | Rejection |
| Tool Marks | 0.05mm | 10mm | pemolesan |
7. Quality Control Standards
7.1 Required Testing Procedures
| Test Type | Standar | Frekuensi | Kriteria Penerimaan |
|---|---|---|---|
| Analisis Kimia | 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 |
| Ultrasonic Testing | 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 | Standar | 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 | Opsional | Class 1 |
8. Heat Treatment Standards
8.1 Heat Treatment Parameters
| Proses | Kisaran Suhu (°C) | Time (Hours) | Metode Pendinginan |
|---|---|---|---|
| Solusi Annealing | 870-900 | 1-2 | Water Quench |
| Pelepas stres | 350-400 | 2-3 | Air Cool |
| Pengerasan Usia | 450-500 | 2-4 | Air Cool |
| Homogenization | 750-800 | 4-6 | Furnace Cool |
8.2 Post-Heat Treatment Properties
| Milik | As-Cast | Solution Annealed | Age Hardened |
|---|---|---|---|
| Kekuatan Tarik (MPa) | 550-650 | 650-750 | 700-800 |
| Kekuatan Hasil (MPa) | 250-300 | 280-350 | 350-450 |
| Perpanjangan (%) | 12-15 | 15-18 | 10-15 |
| Kekerasan (HB) | 150-170 | 170-190 | 190-220 |
9. Corrosion Resistance Standards
9.1 Corrosion Rate Data
| Lingkungan | Suhu (°C) | Corrosion Rate (mm/year) | Metode Tes |
|---|---|---|---|
| Air laut | 20 | 0.025 | ASTM G31 |
| Air Tawar | 20 | 0.013 | ASTM G31 |
| 3% NaCl | 20 | 0.028 | ASTM G31 |
| 10% H₂SO₄ | 20 | 0.15 | ASTM G31 |
| Suasana Industri | 20 | 0.008 | ASTM G50 |
9.2 Galvanic Compatibility
| Coupled Material | Galvanic Potential (mV) | Compatibility Rating |
|---|---|---|
| 316 Baja Tahan Karat | +50 | Bagus |
| Baja karbon | -300 | Miskin |
| Monel 400 | +30 | Bagus sekali |
| Titanium | +200 | Adil |
| Perunggu Aluminium | -20 | Bagus sekali |
10. Industry-Specific Standards
10.1 Marine Industry Requirements
| Standar | Organisasi | Requirements | Aplikasi |
|---|---|---|---|
| NACE MR0175 | NACE | Sour Service | Di lepas pantai |
| DNV-GL Rules | DNV-GL | Marine Grade | Shipbuilding |
| ABS Rules | ABS | Marine Grade | Naval Vessels |
| Lloyd’s Register | LR | Marine Grade | Commercial Marine |
10.2 Pressure Equipment Standards
| Standar | Wilayah | Pressure Rating | Kisaran Suhu |
|---|---|---|---|
| ASME B31.3 | Internasional | Class 150-300 | -29°C to 260°C |
| PED 2014/68/EU | Eropa | Category I-IV | -10°C to 200°C |
| AS1210 | Australia | Class 150-300 | -20°C to 200°C |
| JIS B8285 | Jepang | K10-K20 | -10°C to 200°C |
11. Certification Requirements
11.1 Material Certification Types
| Certificate Type | Standar | Isi | Aplikasi |
|---|---|---|---|
| 3.1 Certificate | EN 10204 | Chemical & Mechanical | Standar |
| 3.2 Certificate | EN 10204 | Third Party Verified | Critical Service |
| Type Test | ASTM A450 | Production Testing | Kualifikasi |
| PMI Certificate | ASTM E1916 | Material Verification | Special Cases |
11.2 Quality System Requirements
| Sistem | Standar | Cakupan | Audit Frequency |
|---|---|---|---|
| ISO 9001 | Quality Management | Full System | Tahunan |
| ISO 14001 | Lingkungan | Environmental Impact | Tahunan |
| ISO 45001 | Safety | Occupational Health | Tahunan |
| API Q1 | Minyak gas | Product Quality | Biennial |
12. Storage and Handling Standards
12.1 Storage Requirements
| Aspek | Persyaratan | Monitoring | Dokumentasi |
|---|---|---|---|
| Suhu | 10-30°C | Daily | Log Sheet |
| Humidity | <60% RH | Daily | Log Sheet |
| Stacking | Max 3 Layers | Per Movement | Inspection Report |
| Protection | UV Protected | Bulanan | Condition Report |
12.2 Handling Specifications
| Operasi | 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.