Introduzione al prodotto:
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
| Elemento | Percentuale (%) | Funzione |
|---|
| Insieme a | Resto | Base metal, provides ductility and conductivity |
| Sn | 11.00-13.00 | Improves strength, hardness, and wear resistance |
| Pb | 00,25 massimo | Enhances machinability |
| Zn | 0.30 massimo | Improves fluidity in casting |
| Fe | 0.15 massimo | Grain refiner, increases strength |
| P | 0.15-0.80 | Deoxidizer, improves fluidity |
| Ni | 0.50 massimo | Increases strength and corrosion resistance |
| Al | 00,005 massimo | Deoxidizer |
| S | 00,05 max | Improves machinability |
| Sb | 0.20 massimo | Increases hardness |
| e | 00,005 massimo | Deoxidizer |
Appunti:
- 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
| Proprietà | Valore | Unità |
|---|
| Brinell Hardness (500 Kg load) | 95 typical | BHN |
| Valutazione di lavorabilità | 20 | – |
| Densità | 0.323 | lb/in³ at 68 °F (20 °C) |
| Resistenza alla trazione | 40,000 | psi |
| Resa | 20,000 | psi |
| Allungamento | 20 | % |
| Modulo di elasticità | 15 | x 10^6 psi |
Prestazioni a diverse temperature
| Intervallo di temperatura | Caratteristiche di performance | 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 | Acceptable |
| High Temperature (>200°C) | Not recommended for prolonged use | Non consigliato |
Applicazioni industriali
| Industria | Applicazioni | Vantaggi principali |
|---|
| Macchinari industriali | Bearings, gears, shafts, worm gears | Elevata resistenza all'usura |
| Marino | Pump impellers, valve bodies | ma ci sono alcune limitazioni |
| Costruzione | Movable bridge components, turntables for bridges | Strength and durability |
| Rendimento della resistenza alla trazione | Piston rings | Low friction coefficient |
| Energia | Steam fittings | Heat resistance |
| Mining | Heavy-duty bushings | Impact resistance |
| Aerospaziale | Bushings for landing gear | High load capacity |
| Olio e gas | Valve components | Corrosion resistance in harsh environments |
Disponibilità di forme e dimensioni
| Forma | Gamma di dimensioni | Standard Length |
|---|
| Solidi | 1″ to 6″ O.D. | 144″ |
| Tubi | 1″ to 6″ O.D. | 144″ |
| Rettangoli | Up to 10″ | 144″ |
| Piatti | Up to 24″ thickness | 96″ x 240″ |
| Rods | 0.25″ to 12″ diameter | 144″ |
| Custom Shapes | As per requirement | Varies |
Available Forms
| Modulo | Typical Use | Disponibilità |
|---|
| Semi-finished | Further processing | Common |
| Mill stock | Direct use | Widely available |
| Near-net shapes | Minimal machining | On request |
| Bar stock | lavorazione | Standard |
| Piatto | Large flat components | Common |
| Profile or structural shape | Specific applications | On request |
| forgiati | Componenti ad alta resistenza | Limitato |
| Castings | Complex shapes | Common |
Production Standards and Compliance
| Standard/Compliance | Regione | Relevance |
|---|
| Federal Safe Drinking Water Act – SDWA | Stati Uniti d'America | Water safety |
| S. 3874 Legge federale sulla riduzione del piombo nell'acqua potabile | Stati Uniti d'America | Lead content |
| CaliforniaAB1953 | California, USA | Lead content |
| Legge 193 del Vermont | Vermont, USA | Lead content |
| ASTM B505 | Internazionale | Continuous Casting of Copper Alloys |
| ASTM B271 | Internazionale | Copper-Base Alloy Centrifugal Castings |
| ISO 1338 | Internazionale | Cast copper alloys |
| JIS H5111 | Giappone | Bronze castings |
Standards and Corresponding Grades in Different Countries
| Nazione | Standard | Grado corrispondente |
|---|
| Stati Uniti d'America | noi | C90810 |
| Germania | A PARTIRE DAL | CuSn12 |
| Giappone | JIS | CAC704 |
| United Kingdom | BS | HTB1 |
| Francia | NF | CuSn12 |
| Italia | UNI | CuSn12 |
| Russia | GOST | BrO12 |
| Cina | GB | ZCuSn12 |
| Internazionale | ISO | CuSn12 |
Caratteristiche di saldatura
| Metodo di saldatura | adeguatezza | è un acciaio strutturale ad alta resistenza a bassa lega standard cinese GB | Preheat Temp |
|---|
| Gas Welding | Bene | Use phosphor bronze filler rod | 150-200°C |
| TIG Welding | Eccellente | Use pure argon shielding gas | As needed |
| MIG Welding | Bene | Use bronze filler wire | As needed |
| Stick Welding | Equo | Use bronze electrodes | As needed |
| Saldatura a resistenza | Povero | Non consigliato | N / A |
| Electron Beam Welding | Bene | For precision applications | As needed |
| Saldatura laser | Equo | Requires careful control | As needed |
Processing Characteristics
| Processi | adeguatezza | è un acciaio strutturale ad alta resistenza a bassa lega standard cinese GB | Key Consideration |
|---|
| lavorazione | Bene | Machinability rating of 20 | Tool selection |
| formando | Equo | Limited formability due to high tin content | Avoid excessive deformation |
| forgiatura | Povero | Non consigliato | N / A |
| Colata | Eccellente | Ideal for sand and centrifugal casting | Proper cooling rate |
| Estrusione | Povero | Not typically extruded | N / A |
| Deep Drawing | Povero | Limited ductility | Non consigliato |
| Spinning | Equo | Possible with proper techniques | Avoid work hardening |
| Broaching | Bene | 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 |
Trattamento termico
| Trattamento termico | Intervallo di temperatura | Purpose | Metodo di raffreddamento |
|---|
| Ricottura | 550-650°C | Stress relief and softening | Slow cooling |
| Trattamento della soluzione | Non applicabile | C90810 is not heat treatable | N / A |
| Indurimento dell'età | Non applicabile | C90810 is not age hardenable | N / A |
| Alleviare lo stress | 260-370°C | Reduce internal stresses | Aria condizionata |
| Normalizzare | Not typically performed | N / A | N / A |
| tempra | Non consigliato | May cause distortion | N / A |
Cold Processing Characteristics
| Processi | adeguatezza | è un acciaio strutturale ad alta resistenza a bassa lega standard cinese GB | Alternative Suggestion |
|---|
| Lavoro a freddo | Limitato | High tin content reduces ductility | Consider hot working if necessary |
| Cold Drawing | Povero | Non consigliato | Use machining instead |
| Cold Rolling | Povero | Non consigliato | Consider cast or machined forms |
| Cold Heading | Non adatto | Too brittle | Use machining or casting |
| Forgiatura a freddo | Non adatto | Lacks necessary ductility | Consider hot forging or casting |
| Shot Peening | Equo | Can improve surface properties | Use with caution |
Advantages and Disadvantages of C90810
| Vantaggi | Svantaggi | Considerazioni |
|---|
| Molta forza | Limited formability | Design for minimal forming |
| Eccellente resistenza all'usura | Higher cost compared to some bronzes | Consider for critical applications |
| Buona resistenza alla corrosione | Not suitable for high-speed applications | Use in low to moderate speed settings |
| Low friction coefficient | Capacità limitata di lavorare a freddo | Design for as-cast or machined forms |
| Suitable for heavy loads | Not heat treatable | Select for applications not requiring heat treatment |
| Buona lavorabilità | 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 |
Prodotti simili
| Lega | UNS Number | Main Composition | Differenze chiave |
|---|
| 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
| Proprietà | 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 |
| Allungamento (%) | 20 | 25 | 15 | 20 | 15 |
| Durezza Brinell | 95 | 70 | 100 | 65 | 190 |
| Resistenza alla corrosione | Eccellente | Bene | Eccellente | Bene | Eccellente |
| lavorabilità | Bene | Molto bene | Equo | Eccellente | Equo |
| Forgiatura a caldo | Equo | Bene | Equo | Povero | Bene |
| Resistenza all'usura | Eccellente | Bene | Eccellente | Bene | Eccellente |
| Costo | Alto | Moderare | Molto alto | Moderare | Alto |
| Applicazioni tipiche | Heavy-duty bearings | General-purpose | High-load bearings | Boccole, cuscinetti | Marine components |
Conclusione:
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.
