Pengenalan Produk:
C90810 High Tin Bronze is a copper-based alloy known for its exceptional strength, wear resistance, and corrosion resistance. This alloy is particularly valued in applications requiring high load-bearing capacity and low-speed operations. The high tin content contributes to its superior mechanical properties, making it an ideal choice for various industrial applications.
Chemical Composition of C90810
| unsur | Percentage (%) | Function |
|---|
| Cu | Baki | Base metal, provides ductility and conductivity |
| Sn | 11.00-13.00 | Improves strength, hardness, and wear resistance |
| Pb | 0.25 maks | Enhances machinability |
| Zn | 0.30 maks | Improves fluidity in casting |
| Fe | 0.15 maks | Grain refiner, increases strength |
| P | 0.15-0.80 | Deoxidizer, improves fluidity |
| Dalam | 0.50 maks | Increases strength and corrosion resistance |
| Al | 0.005 max | Deoxidizer |
| S | 0.05 maks | Improves machinability |
| Sb | 0.20 max | Increases hardness |
| Dan | 0.005 max | Deoxidizer |
Nota:
- In determining Cu min., Cu may be calculated as Cu + Ni.
- For continuous castings, P shall be 1.5% max.
- Ni value includes Co.
- Cu + sum of named elements, 99.4% min. Single values represent maximums.
Mechanical Properties of C90810
| Harta benda | Nilai | Unit |
|---|
| Brinell Hardness (500 Kg load) | 95 typical | BHN |
| Penilaian Kebolehmesinan | 20 | – |
| Ketumpatan | 0.323 | lb/in³ at 68 °F (20 °C) |
| Kekuatan Tegangan | 40,000 | psi |
| Kekuatan Hasil | 20,000 | psi |
| Pemanjangan | 20 | % |
| Modulus Keanjalan | 15 | x 10^6 psi |
Prestasi pada Suhu Berbeza
| Julat Suhu | Ciri-ciri Prestasi | Recommended Use |
|---|
| Low Temperature (-50°C to 0°C) | Maintains ductility and toughness | Suitable |
| Room Temperature (20°C to 25°C) | Optimal strength and wear resistance | Ideal |
| Elevated Temperature (100°C to 200°C) | Retains strength but may experience slight softening | Boleh diterima |
| High Temperature (>200°C) | Not recommended for prolonged use | Tidak Disyorkan |
Aplikasi Industri
| industri | Aplikasi | Key Benefits |
|---|
| Industrial Machinery | Bearings, gears, shafts, worm gears | High wear resistance |
| Marin | Pump impellers, valve bodies | Rintangan kakisan |
| Pembinaan | Movable bridge components, turntables for bridges | Strength and durability |
| Automotif | Piston rings | Low friction coefficient |
| Tenaga | Steam fittings | Heat resistance |
| perlombongan | Heavy-duty bushings | Rintangan kesan |
| Aeroangkasa | Bushings for landing gear | High load capacity |
| Minyak dan Gas | Komponen injap | Corrosion resistance in harsh environments |
Shape and Size Availability
| bentuk | Julat Saiz | Standard Length |
|---|
| pepejal | 1″ to 6″ O.D. | 144″ |
| tiub | 1″ to 6″ O.D. | 144″ |
| segi empat tepat | Up to 10″ | 144″ |
| Pinggan | Up to 24″ thickness | 96″ x 240″ |
| Rods | 0.25″ to 12″ diameter | 144″ |
| Custom Shapes | As per requirement | Varies |
Available Forms
| Borang | Typical Use | Ketersediaan |
|---|
| Semi-finished | Further processing | Biasa |
| Mill stock | Direct use | Widely available |
| Near-net shapes | Minimal machining | On request |
| Bar stock | Pemesinan | Standard |
| Pinggan | Large flat components | Biasa |
| Profile or structural shape | Specific applications | On request |
| Penempaan | High-strength components | Terhad |
| Castings | Complex shapes | Biasa |
Production Standards and Compliance
| Standard/Compliance | Wilayah | Relevance |
|---|
| Federal Safe Drinking Water Act – SDWA | USA | Water safety |
| S. 3874 Akta Pengurangan Plumbum Persekutuan dalam Air Minuman | USA | Lead content |
| California AB1953 | California, USA | Lead content |
| Akta Vermont 193 | Vermont, USA | Lead content |
| ASTM B505 | antarabangsa | Continuous Casting of Copper Alloys |
| ASTM B271 | antarabangsa | Copper-Base Alloy Centrifugal Castings |
| ISO 1338 | antarabangsa | Cast copper alloys |
| JIS H5111 | Jepun | Bronze castings |
Standards and Corresponding Grades in Different Countries
| Negara | Standard | Corresponding Grade |
|---|
| USA | AS | C90810 |
| Jerman | DARI | CuSn12 |
| Jepun | DIA | CAC704 |
| United Kingdom | BS | HTB1 |
| Perancis | NF | CuSn12 |
| Itali | UNI | CuSn12 |
| Rusia | GOST | BrO12 |
| China | GB | ZCuSn12 |
| antarabangsa | ISO | CuSn12 |
Welding Characteristics
| Kaedah Kimpalan | Kesesuaian | Nota | Preheat Temp |
|---|
| Gas Welding | bagus | Use phosphor bronze filler rod | 150-200°C |
| Kimpalan TIG | Cemerlang | Use pure argon shielding gas | Seperti yang diperlukan |
| Kimpalan MIG | bagus | Use bronze filler wire | Seperti yang diperlukan |
| Stick Welding | Adil | Use bronze electrodes | Seperti yang diperlukan |
| Kimpalan Rintangan | miskin | Tidak disyorkan | T/A |
| Electron Beam Welding | bagus | For precision applications | Seperti yang diperlukan |
| Laser Welding | Adil | Requires careful control | Seperti yang diperlukan |
Processing Characteristics
| Proses | Kesesuaian | Nota | Key Consideration |
|---|
| Pemesinan | bagus | Machinability rating of 20 | Tool selection |
| Membentuk | Adil | Limited formability due to high tin content | Avoid excessive deformation |
| Menempa | miskin | Tidak disyorkan | T/A |
| Pemutus | Cemerlang | Ideal for sand and centrifugal casting | Proper cooling rate |
| Penyemperitan | miskin | Not typically extruded | T/A |
| Lukisan Dalam | miskin | Limited ductility | Tidak disyorkan |
| Berpusing | Adil | Possible with proper techniques | Avoid work hardening |
| Broaching | bagus | Suitable for precision sizing | Tool wear |
Polishing Characteristics
| Polishing Method | Result | Recommended Abrasives |
|---|
| Mechanical Polishing | Good surface finish achievable | Alumina or diamond compounds |
| Chemical Polishing | Moderate results | Proprietary solutions |
| Electro-polishing | Excellent for high luster finish | Phosphoric acid-based electrolytes |
| Buffing | High shine possible | Soft cloth wheels with fine abrasive |
| Lapping | Precision finish | Diamond or silicon carbide compounds |
| Honing | Good for cylindrical surfaces | Bonded abrasive stones |
Rawatan Haba
| Rawatan Haba | Julat Suhu | Tujuan | Cooling Method |
|---|
| Penyepuhlindapan | 550-650°C | Stress relief and softening | Slow cooling |
| Rawatan Penyelesaian | Tidak berkenaan | C90810 is not heat treatable | T/A |
| Pengerasan Umur | Tidak berkenaan | C90810 is not age hardenable | T/A |
| Menghilangkan Tekanan | 260-370°C | Reduce internal stresses | Penyejukan udara |
| Normalizing | Not typically performed | T/A | T/A |
| Pelindapkejutan | Tidak disyorkan | May cause distortion | T/A |
Cold Processing Characteristics
| Proses | Kesesuaian | Nota | Alternative Suggestion |
|---|
| Bekerja Dingin | Terhad | High tin content reduces ductility | Consider hot working if necessary |
| Lukisan Sejuk | miskin | Tidak disyorkan | Use machining instead |
| Berguling Sejuk | miskin | Tidak disyorkan | Consider cast or machined forms |
| Tajuk Dingin | Not suitable | Too brittle | Use machining or casting |
| Penempaan Sejuk | Not suitable | Lacks necessary ductility | Consider hot forging or casting |
| Shot Peening | Adil | Can improve surface properties | Use with caution |
Advantages and Disadvantages of C90810
| Kelebihan | Keburukan | Pertimbangan |
|---|
| Kekuatan tinggi | Limited formability | Design for minimal forming |
| Rintangan haus yang sangat baik | Higher cost compared to some bronzes | Consider for critical applications |
| Good corrosion resistance | Not suitable for high-speed applications | Use in low to moderate speed settings |
| Low friction coefficient | Limited cold working ability | Design for as-cast or machined forms |
| Suitable for heavy loads | Not heat treatable | Select for applications not requiring heat treatment |
| Good machinability | Relatively high density | Consider weight in design |
| Excellent bearing properties | Susceptible to tin pest at very low temperatures | Avoid prolonged exposure below 13°C |
| Good dimensional stability | Can be difficult to weld | Use appropriate welding techniques |
| Resistant to seawater corrosion | Not as strong as steel | Use in appropriate load conditions |
| Low magnetic permeability | Higher cost than brass | Justify cost with performance requirements |
Similar Products
| Aloi | Nombor UNS | Main Composition | Perbezaan Utama |
|---|
| C90700 | C90700 | Cu-Sn-Zn | Lower tin, higher zinc content |
| C91100 | C91100 | Cu-Sn | Higher tin content, no lead |
| C93200 | C93200 | Cu-Sn-Pb | Higher lead content for improved machinability |
| C95400 | C95400 | Cu-Al-Fe | Aluminum bronze with different property profile |
| C95500 | C95500 | Cu-Al-Ni-Fe | Nickel-aluminum bronze with higher strength |
| C86300 | C86300 | Cu-Mn-Ni-Fe | Manganese bronze with higher strength |
| C92200 | C92200 | Cu-Sn-Pb-Zn | Navy M gun metal with different composition |
Comparison of C90810 with Similar Products
| Harta benda | C90810 | C90700 | C91100 | C93200 | C95400 |
|---|
| Tensile Strength (psi) | 40,000 | 36,000 | 45,000 | 35,000 | 90,000 |
| Yield Strength (psi) | 20,000 | 18,000 | 25,000 | 18,000 | 45,000 |
| Pemanjangan (%) | 20 | 25 | 15 | 20 | 15 |
| Kekerasan Brinell | 95 | 70 | 100 | 65 | 190 |
| Rintangan Kakisan | Cemerlang | bagus | Cemerlang | bagus | Cemerlang |
| Kebolehmesinan | bagus | Sangat Baik | Adil | Cemerlang | Adil |
| Kebolehkimpalan | Adil | bagus | Adil | miskin | bagus |
| Ketahanan Pakai | Cemerlang | bagus | Cemerlang | bagus | Cemerlang |
| kos | tinggi | Sederhana | Sangat Tinggi | Sederhana | tinggi |
| Aplikasi Biasa | Galas tugas berat | General-purpose | High-load bearings | Sesendal, galas | Marine components |
Kesimpulan:
C90810 High Tin Bronze is a specialized alloy that offers a unique combination of properties, making it invaluable in various industrial applications. Its high tin content contributes to excellent strength, wear resistance, and corrosion resistance, particularly in heavy-load, low-speed settings. While it has limitations in formability and high-temperature applications, C90810 excels in industries such as marine engineering, industrial machinery, and construction.
The alloy’s versatility is evident in its wide range of available forms and sizes, adherence to international standards, and good machinability. However, designers and engineers must consider its specific characteristics, such as limited cold working ability and heat treatment options, when incorporating C90810 into their projects.
Compared to similar alloys, C90810 stands out for its balance of strength, wear resistance, and corrosion resistance. Its unique property profile makes it an ideal choice for applications where these characteristics are crucial, justifying its higher cost in critical components.
In summary, C90810 High Tin Bronze continues to be a valuable material in modern engineering, offering reliable performance in demanding environments where other alloys may fall short.
