Product Introduction:
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
| 要素 | パーセンテージ (%) | Function |
|---|
| 銅 | 残り | Base metal, provides ductility and conductivity |
| SN | 11.00-13.00 | Improves strength, hardness, and wear resistance |
| 鉛 | 0最大.25 | Enhances machinability |
| 亜鉛 | 0最大.30 | Improves fluidity in casting |
| 鉄 | 0最大.15 | Grain refiner, increases strength |
| P | 0.15-0.80 | Deoxidizer, improves fluidity |
| で | 0最大.50 | Increases strength and corrosion resistance |
| アル | 0.005 max | Deoxidizer |
| S | 0最大.05 | Improves machinability |
| Sb | 0最大.20 | Increases hardness |
| そして | 0.005 max | Deoxidizer |
ノート：
- In determining Cu min., Cu may be calculated as Cu + Ni.
- For continuous castings, P shall be 1.5% max.
- Ni値にはCoが含まれます。
- Cu + sum of named elements, 99.4% min. Single values represent maximums.
Mechanical Properties of C90810
| 財産 | 価値 | Unit |
|---|
| Brinell Hardness (500 Kg load) | 95 typical | BHN |
| 被削性評価 | 20 | – |
| 密度 | 0.323 | lb/in³ at 68 °F (20 °C) |
| 抗張力 | 40,000 | psi |
| 降伏強さ | 20,000 | psi |
| 伸長 | 20 | % |
| 弾性率 | 15 | x 10^6 psi |
さまざまな温度でのパフォーマンス
| 温度範囲 | 性能特性 | Recommended Use |
|---|
| Low Temperature (-50°C to 0°C) | Maintains ductility and toughness | Suitable |
| 室温（20℃～25℃） | 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 | 推奨されません |
産業用途
| 業界 | アプリケーション | Key Benefits |
|---|
| 産業機械 | Bearings, gears, shafts, worm gears | High wear resistance |
| マリン | Pump impellers, valve bodies | 耐食性 |
| 工事 | Movable bridge components, turntables for bridges | Strength and durability |
| 自動車 | Piston rings | Low friction coefficient |
| エネルギー | Steam fittings | Heat resistance |
| マイニング | Heavy-duty bushings | Impact resistance |
| 航空宇宙 | Bushings for landing gear | High load capacity |
| オイルとガス | Valve components | Corrosion resistance in harsh environments |
形状とサイズの入手可能性
| 形 | サイズ範囲 | 標準長さ |
|---|
| 固体 | 1″ to 6″ O.D. | 144″ |
| チューブ | 1″ to 6″ O.D. | 144″ |
| 長方形 | Up to 10″ | 144″ |
| プレート | Up to 24″ thickness | 96″ x 240″ |
| Rods | 0.25″ to 12″ diameter | 144″ |
| Custom Shapes | As per requirement | Varies |
Available Forms
| 形状 | Typical Use | Availability |
|---|
| Semi-finished | Further processing | Common |
| Mill stock | Direct use | Widely available |
| Near-net shapes | Minimal machining | On request |
| Bar stock | 機械加工 | 標準 |
| 皿 | Large flat components | Common |
| Profile or structural shape | Specific applications | On request |
| 鍛造品 | High-strength components | Limited |
| Castings | Complex shapes | Common |
Production Standards and Compliance
| Standard/Compliance | Region | Relevance |
|---|
| Federal Safe Drinking Water Act – SDWA | アメリカ合衆国 | Water safety |
| S. 3874 Federal Reduction of Lead in Drinking Water Act | アメリカ合衆国 | Lead content |
| California AB1953 | California, USA | Lead content |
| Vermont Act 193 | Vermont, USA | Lead content |
| ASTM B505 | International | Continuous Casting of Copper Alloys |
| ASTM B271 | International | Copper-Base Alloy Centrifugal Castings |
| ISO 1338 | International | Cast copper alloys |
| HE H5111 | 日本 | Bronze castings |
各国の規格と対応グレード
| 国 | 標準 | Corresponding Grade |
|---|
| アメリカ合衆国 | 私たち | C90810 |
| ドイツ | から | CuSn12 |
| 日本 | 彼 | CAC704 |
| United Kingdom | BS | HTB1 |
| フランス | NF | CuSn12 |
| イタリア | ユニ | CuSn12 |
| ロシア | ゴスト | BrO12 |
| 中国 | GB | ZCuSn12 |
| International | ISO | CuSn12 |
溶接特性
| 溶接方法 | 適合性 | 注意事項 | Preheat Temp |
|---|
| Gas Welding | 良い | Use phosphor bronze filler rod | 150-200°C |
| TIG Welding | 素晴らしい | Use pure argon shielding gas | As needed |
| MIG Welding | 良い | Use bronze filler wire | As needed |
| Stick Welding | 公平 | Use bronze electrodes | As needed |
| 抵抗溶接 | 貧しい | 推奨されません | 該当なし |
| 電子ビーム溶接 | 良い | For precision applications | As needed |
| Laser Welding | 公平 | Requires careful control | As needed |
Processing Characteristics
| プロセス | 適合性 | 注意事項 | Key Consideration |
|---|
| 機械加工 | 良い | Machinability rating of 20 | Tool selection |
| 形にする | 公平 | Limited formability due to high tin content | Avoid excessive deformation |
| 鍛造 | 貧しい | 推奨されません | 該当なし |
| 鋳造 | 素晴らしい | Ideal for sand and centrifugal casting | Proper cooling rate |
| Extrusion | 貧しい | Not typically extruded | 該当なし |
| Deep Drawing | 貧しい | Limited ductility | 推奨されません |
| Spinning | 公平 | Possible with proper techniques | Avoid work hardening |
| Broaching | 良い | Suitable for precision sizing | Tool wear |
Polishing Characteristics
| 研磨方法 | Result | Recommended Abrasives |
|---|
| 機械研磨 | Good surface finish achievable | Alumina or diamond compounds |
| Chemical Polishing | Moderate results | Proprietary solutions |
| 電解研磨 | Excellent for high luster finish | Phosphoric acid-based electrolytes |
| バフ掛け | 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 |
熱処理
| 熱処理 | 温度範囲 | 目的 | Cooling Method |
|---|
| アニーリング | 550-650°C | Stress relief and softening | Slow cooling |
| 溶体化処理 | Not applicable | C90810 is not heat treatable | 該当なし |
| Age Hardening | Not applicable | C90810 is not age hardenable | 該当なし |
| 応力緩和 | 260-370°C | 内部応力を軽減する | 空冷 |
| 正規化 | Not typically performed | 該当なし | 該当なし |
| 焼入れ | 推奨されません | May cause distortion | 該当なし |
Cold Processing Characteristics
| プロセス | 適合性 | 注意事項 | Alternative Suggestion |
|---|
| Cold Working | Limited | High tin content reduces ductility | Consider hot working if necessary |
| 冷間引抜 | 貧しい | 推奨されません | Use machining instead |
| 冷間圧延 | 貧しい | 推奨されません | Consider cast or machined forms |
| Cold Heading | Not suitable | Too brittle | Use machining or casting |
| 冷間鍛造 | Not suitable | Lacks necessary ductility | Consider hot forging or casting |
| Shot Peening | 公平 | Can improve surface properties | Use with caution |
Advantages and Disadvantages of C90810
| 利点 | 短所 | 考慮事項 |
|---|
| 高強度 | Limited formability | Design for minimal forming |
| Excellent wear resistance | 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 |
| 良好な機械加工性 | 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
| 合金 | UNS Number | Main Composition | 主な違い |
|---|
| 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
| 財産 | 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 |
| 伸長 （％） | 20 | 25 | 15 | 20 | 15 |
| ブリネル硬度 | 95 | 70 | 100 | 65 | 190 |
| 耐食性 | 素晴らしい | 良い | 素晴らしい | 良い | 素晴らしい |
| 被削性 | 良い | とても良い | 公平 | 素晴らしい | 公平 |
| 溶接性 | 公平 | 良い | 公平 | 貧しい | 良い |
| 耐摩耗性 | 素晴らしい | 良い | 素晴らしい | 良い | 素晴らしい |
| 料金 | 高い | 適度 | 非常に高い | 適度 | 高い |
| 代表的なアプリケーション | Heavy-duty bearings | General-purpose | High-load bearings | ブッシュ、ベアリング | Marine components |
結論：
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.
