C90300 High Tin Bronze Product Introduction:
• Composition: 86-89% copper, 7.5-9% tin, other elements
• Key features:
- High strength and excellent wear resistance
- 좋은 내식성
- Suitable for heavy load and low-speed applications
• Main applications: - Bearings and gears
- Marine propeller hubs
- Valve components
• Processing characteristics: - Excellent casting properties
- 우수한 가공성
• 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.
화학적 구성 요소
The chemical composition of C90300 is crucial to its performance characteristics:
| 요소 | Percentage Range | 기능 |
|---|---|---|
| 구리 | 86.0 – 89.0% | Base metal, provides ductility and conductivity |
| 주석(Sn) | 7.5 – 9.0% | Increases strength and wear resistance |
| 납(Pb) | 0.30 – 1.5% | Improves machinability |
| 아연(Zn) | 1.0 – 3.0% | Enhances fluidity in casting, deoxidizer |
| 니켈(Ni) | 1.0% max | Improves corrosion resistance |
| 철(Fe) | 0최대 0.20% | Grain refiner, increases strength |
| 인(P) | 0.05 – 0.35% | Deoxidizer, improves fluidity |
| Antimony (Sb) | 0최대 0.20% | Enhances strength and hardness |
| 유황(S) | 0.05% max | Impurity, controlled to minimize negative effects |
| 알루미늄(Al) | 0최대 .005% | Deoxidizer |
| 실리콘(Si) | 0최대 .005% | Improves wear resistance |
기계적 성질
The mechanical properties of C90300 contribute to its suitability for various industrial applications:
| 재산 | 값 |
|---|---|
| 인장 강도(최소) | 40 ksi (276 MPa) |
| 항복 강도(최소) | 20 ksi (138 MPa) |
| 신장(분) | 20% |
| 브리넬 경도 | 70 HB (typical) |
| 밀도 | 0.319 lb/in³ (8.83 g/cm³) |
| 탄성계수 | 15.5 x 10^6 psi (107 GPa) |
다양한 온도에서의 성능
C90300 maintains its properties across a range of temperatures:
| Temperature Range | 성능 특성 |
|---|---|
| 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 |
산업 응용
C90300 finds use in various industries due to its unique properties:
| 산업 | 애플리케이션 |
|---|---|
| 선박 | Propeller hubs, bushings, valve components |
| 자동차 | Thrust washers, bushings, wear plates |
| 산업기계 | Gears, bearings, wear strips |
| 석유 및 가스 | Pump components, valve seats |
| 건설 | Bridge bearings, heavy equipment components |
| 항공우주 | 랜딩기어 부품, 부싱 |
모양 및 크기 가용성
C90300 is available in various forms to suit different manufacturing needs:
| 형태 | 크기 범위 | 노트 |
|---|---|---|
| Round Bars | 10mm – 300mm diameter | Standard lengths up to 3.6m |
| Hollow Bars | 20mm – 250mm OD, 10mm – 200mm ID | Custom lengths available |
| 접시 | 5mm – 100mm thickness | Width up to 1.2m, length up to 3m |
| 튜브 | 15mm – 200mm OD, 1.5mm – 25mm wall thickness | Standard lengths up to 3m |
| Castings | 맞춤 크기 | Sand, centrifugal, and continuous casting available |
| 단조품 | Up to 1000kg | Custom shapes possible |
생산 표준
C90300 complies with several important standards:
| 기준 | 설명 |
|---|---|
| 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:
| 국가/지역 | 기준 | Equivalent/Similar Grade |
|---|---|---|
| 미국 | ASTM/UNS | C90300 |
| X40CrMoV5-1 열간 가공 공구강은 다양한 응용 분야와 전 세계적으로 사용됩니다. | 에 | CuSn8 |
| 일본 | JIS | CAC903 |
| 중국 | GB | ZCuSn8Pb1 |
| 영국 | 학사 | PB3 |
| 독일 | 에서 | G-CuSn8 |
용접특성
Welding C90300 requires specific techniques:
| 용접방법 | 적당 | 노트 |
|---|---|---|
| Gas Tungsten Arc Welding (GTAW) | 훌륭한 | Preferred for thin sections and precision work |
| Gas Metal Arc Welding (GMAW) | 좋은 | Suitable for thicker sections |
| Shielded Metal Arc Welding (SMAW) | 공정한 | Requires proper electrode selection |
| 옥시아세틸렌 용접 | 가난한 | Not recommended due to high heat input |
| 저항 용접 | 공정한 | Limited applications |
Processing Characteristics
C90300 can be processed using various methods:
| 프로세스 | 적당 | 노트 |
|---|---|---|
| 가공 | 훌륭한 | Good machinability, produces smooth finishes |
| 형성 | 공정한 | Limited cold formability due to high tin content |
| Casting | 훌륭한 | Widely used in casting applications |
| 단조 | 공정한 | Hot forging possible, limited cold forging |
| 열처리 | 좋은 | Can be strengthened through heat treatment |
세련
Polishing C90300 can enhance its appearance and surface properties:
| Polishing Method | Effectiveness | 노트 |
|---|---|---|
| Mechanical Polishing | 훌륭한 | Achieves high luster |
| Chemical Polishing | 좋은 | Suitable for complex shapes |
| Electro-polishing | 매우 좋은 | Provides smooth, bright finish |
| Buffing | 훌륭한 | For final finish and high shine |
열처리
Heat treatment can modify the properties of C90300:
| 열처리 | 목적 | 프로세스 |
|---|---|---|
| 가열 냉각 | Stress relief, softening | Heat to 550-650°C, slow cool |
| 용액 처리 | 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 |
냉간 가공
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 |
| 냉간 단조 | Limited applicability, may require intermediate annealing |
| Shot Peening | Improves fatigue resistance |
장점과 단점
C90300 tin bronze has several pros and cons:
| 장점 | 단점 |
|---|---|
| 고강도 | Higher cost compared to lower tin bronzes |
| 우수한 내마모성 | Limited formability |
| 좋은 내식성 | Lower electrical conductivity than pure copper |
| Low friction coefficient | Potential for dezincification in certain environments |
| 우수한 가공성 | Not suitable for high-speed applications |
| Suitable for heavy loads | May require special welding procedures |
유사 제품 및 비교
C90300 is part of a family of tin bronzes. Here’s a comparison with similar alloys:
| 합금 | Cu% | Sn % | 기타 요소 | 주요 차이점 |
|---|---|---|---|---|
| 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 | Ni | 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 |
결론
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.
