C90300 High Tin Bronze Product Introduction:
• Composition: 86-89% copper, 7.5-9% tin, other elements
• Key features:
- High strength and excellent wear resistance
- مقاومة جيدة للتآكل
- Suitable for heavy load and low-speed applications
• Main applications: - Bearings and gears
- Marine propeller hubs
- Valve components
• Processing characteristics: - Excellent casting properties
- آلية جيدة
• Complies with international standards like ASTM B505, B271
• Wide temperature range applicability, from low to moderate temperatures
• Available in various forms: bars, plates, tubes, castings
C90300 Tin Bronze Product Introduction
C90300 is a high-tin bronze alloy known for its excellent wear resistance, high strength, and good corrosion resistance. This versatile material is widely used in various industrial applications, particularly where high load-bearing capacity and low-speed operations are required.
درجة حرارة التقسية
The chemical composition of C90300 is crucial to its performance characteristics:
| عنصر | Percentage Range | دور |
|---|---|---|
| نحاس | 86.0 – 89.0% | Base metal, provides ductility and conductivity |
| Tin (Sn) | 7.5 – 9.0% | Increases strength and wear resistance |
| الرصاص (الرصاص) | 0.30 – 1.5% | Improves machinability |
| الزنك (الزنك) | 1.0 – 3.0% | Enhances fluidity in casting, deoxidizer |
| Nickel (Ni) | 1.0% max | Improves corrosion resistance |
| الحديد (الحديد) | 0.20% كحد أقصى | Grain refiner, increases strength |
| الفوسفور (ف) | 0.05 – 0.35% | Deoxidizer, improves fluidity |
| Antimony (Sb) | 0.20% كحد أقصى | Enhances strength and hardness |
| الكبريت (S) | 0.05% max | Impurity, controlled to minimize negative effects |
| الألومنيوم (آل) | 0.005% كحد أقصى | Deoxidizer |
| السيليكون (سي) | 0.005% كحد أقصى | Improves wear resistance |
الخصائص الميكانيكية
The mechanical properties of C90300 contribute to its suitability for various industrial applications:
| ملكية | قيمة |
|---|---|
| Tensile Strength (min) | 40 ksi (276 MPa) |
| Yield Strength (min) | 20 ksi (138 MPa) |
| Elongation (min) | 20% |
| صلابة برينل | 70 HB (typical) |
| سمك 12-300 مم × عرض 200-2300 مم | 0.319 lb/in³ (8.83 g/cm³) |
| معامل المرونة | 15.5 x 10^6 psi (107 GPa) |
الأداء في درجات حرارة مختلفة
C90300 maintains its properties across a range of temperatures:
| Temperature Range | خصائص الأداء |
|---|---|
| Low Temperature (-50°C to 0°C) | Maintains ductility and strength |
| Room Temperature (0°C to 30°C) | Optimal performance for most applications |
| Elevated Temperature (30°C to 200°C) | Gradual decrease in strength, still suitable for many applications |
| High Temperature (200°C to 300°C) | Significant decrease in strength, limited applications |
تطبيقات الصناعة
C90300 finds use in various industries due to its unique properties:
| Industry | التطبيقات |
|---|---|
| البحرية | Propeller hubs, bushings, valve components |
| السيارات | Thrust washers, bushings, wear plates |
| Industrial Machinery | Gears, bearings, wear strips |
| النفط والغاز | Pump components, valve seats |
| بناء | Bridge bearings, heavy equipment components |
| الفضاء | مكونات معدات الهبوط، البطانات |
Shape and Size Availability
C90300 is available in various forms to suit different manufacturing needs:
| استمارة | Size Range | ملاحظات |
|---|---|---|
| Round Bars | 10mm – 300mm diameter | Standard lengths up to 3.6m |
| Hollow Bars | 20mm – 250mm OD, 10mm – 200mm ID | Custom lengths available |
| لوحات | 5mm – 100mm thickness | Width up to 1.2m, length up to 3m |
| Tubes | 15mm – 200mm OD, 1.5mm – 25mm wall thickness | Standard lengths up to 3m |
| Castings | Custom sizes | Sand, centrifugal, and continuous casting available |
| من | Up to 1000kg | Custom shapes possible |
معايير الإنتاج
C90300 complies with several important standards:
| اساسي | وصف |
|---|---|
| ASTM B505 | Standard Specification for Copper Alloy Continuous Castings |
| ASTM B271 | Standard Specification for Copper-Base Alloy Centrifugal Castings |
| ASTM B584 | Standard Specification for Copper Alloy Sand Castings for General Applications |
| SAE J461 | Copper-Base Alloy Castings |
| MIL-C-22229 | Military Specification: Castings, Bronze |
International Standards and Corresponding Grades
C90300 has equivalent or similar grades in different countries:
| البلد/المنطقة | اساسي | Equivalent/Similar Grade |
|---|---|---|
| الولايات المتحدة الأمريكية | ASTM/UNS | C90300 |
| أوروبا | تشغيل | CuSn8 |
| D3 الصلب للأعمال الباردة لديه مقاومة تآكل عالية جدًا ضد التآكل الكاشطة والمواد اللاصقة بسبب الحجم الكبير للكربيدات الصلبة في مصفوفة الصلب | JIS | CAC903 |
| D3 الصلب للأعمال الباردة لديه مقاومة تآكل عالية جدًا ضد التآكل الكاشطة والمواد اللاصقة بسبب الحجم الكبير للكربيدات الصلبة في مصفوفة الصلب | غيغابايت | ZCuSn8Pb1 |
| D3 الصلب للأعمال الباردة لديه مقاومة تآكل عالية جدًا ضد التآكل الكاشطة والمواد اللاصقة بسبب الحجم الكبير للكربيدات الصلبة في مصفوفة الصلب | D3 الصلب للأعمال الباردة لديه مقاومة تآكل عالية جدًا ضد التآكل الكاشطة والمواد اللاصقة بسبب الحجم الكبير للكربيدات الصلبة في مصفوفة الصلب | PB3 |
| D3 الصلب للأعمال الباردة لديه مقاومة تآكل عالية جدًا ضد التآكل الكاشطة والمواد اللاصقة بسبب الحجم الكبير للكربيدات الصلبة في مصفوفة الصلب | من | G-CuSn8 |
خصائص اللحام
Welding C90300 requires specific techniques:
| Welding Method | ملاءمة | ملاحظات |
|---|---|---|
| Gas Tungsten Arc Welding (GTAW) | ممتاز | Preferred for thin sections and precision work |
| Gas Metal Arc Welding (GMAW) | جيد | Suitable for thicker sections |
| Shielded Metal Arc Welding (SMAW) | عدل | Requires proper electrode selection |
| لحام أوكسي أسيتيلين | مسكين | Not recommended due to high heat input |
| لحام المقاومة | عدل | Limited applications |
Processing Characteristics
C90300 can be processed using various methods:
| معالجة | ملاءمة | ملاحظات |
|---|---|---|
| إلى 500 درجة مئوية وتخفيف التوتر | ممتاز | Good machinability, produces smooth finishes |
| Forming | عدل | Limited cold formability due to high tin content |
| Casting | ممتاز | Widely used in casting applications |
| الخصائص الفيزيائية والميكانيكية العامة في درجة الحرارة المحيطة | عدل | Hot forging possible, limited cold forging |
| الخصائص الميكانيكية | جيد | Can be strengthened through heat treatment |
تلميع
Polishing C90300 can enhance its appearance and surface properties:
| Polishing Method | Effectiveness | ملاحظات |
|---|---|---|
| Mechanical Polishing | ممتاز | Achieves high luster |
| Chemical Polishing | جيد | Suitable for complex shapes |
| Electro-polishing | جيد جدًا | Provides smooth, bright finish |
| Buffing | ممتاز | For final finish and high shine |
الخصائص الميكانيكية
Heat treatment can modify the properties of C90300:
| الخصائص الميكانيكية | Purpose | معالجة |
|---|---|---|
| التلدين | Stress relief, softening | Heat to 550-650°C, slow cool |
| علاج الحل | Homogenization | Heat to 760-780°C, water quench |
| Age Hardening | Increase strength and hardness | Heat to 350-400°C for 2-4 hours, air cool |
Cold Processing
Cold working can alter the mechanical properties of C90300:
| Cold Working Method | Effect on Properties |
|---|---|
| Cold Rolling | Increases strength, reduces ductility |
| Cold Drawing | Improves surface finish, dimensional accuracy |
| تزوير الباردة | Limited applicability, may require intermediate annealing |
| Shot Peening | Improves fatigue resistance |
المميزات والعيوب
C90300 tin bronze has several pros and cons:
| مزايا | سلبيات |
|---|---|
| قوة عالية | Higher cost compared to lower tin bronzes |
| Excellent wear resistance | Limited formability |
| مقاومة جيدة للتآكل | Lower electrical conductivity than pure copper |
| Low friction coefficient | Potential for dezincification in certain environments |
| آلية جيدة | Not suitable for high-speed applications |
| Suitable for heavy loads | May require special welding procedures |
منتجات مماثلة والمقارنة
C90300 is part of a family of tin bronzes. Here’s a comparison with similar alloys:
| سبيكة | Cu % | Sn % | Other Elements | Key Differences |
|---|---|---|---|---|
| C90300 | 86-89 | 7.5-9 | Zn, Pb, Ni | Base alloy for comparison |
| C90500 | 86-89 | 9-11 | Ni, Zn | Higher tin, increased hardness |
| C90700 | 88-90 | 10-12 | ني | Even higher tin, maximum hardness |
| C83600 | 84-86 | 4-6 | Zn, Pb | Lower tin, increased ductility |
| C92200 | 86-90 | 5.5-6.5 | Zn, Pb | Lower tin, better for pressure-tight applications |
خاتمة
C90300 tin bronze is a versatile alloy offering a balanced combination of strength, wear resistance, and corrosion resistance. It excels in applications involving heavy loads and low speeds, such as bearings, gears, and marine components. While it has limitations like higher cost and limited formability, its good machinability and casting properties enhance its manufacturing versatility. When selecting C90300, engineers should consider specific application requirements, operating conditions, and economic factors. Its compliance with international standards and proven performance in various industries make it a reliable choice for many demanding applications in modern engineering and manufacturing.
