C90300 High Tin Bronze Product Introduction:

• Composition: 86-89% copper, 7.5-9% tin, other elements
• Key features:

  • 고강도와 탁월한 내마모성
  • 좋은 내식성
  • Suitable for heavy load and low-speed applications
    • Main applications:
  • Bearings and gears
  • Marine propeller hubs
  • 밸브 부품
    • Processing characteristics:
  • 우수한 캐스팅 특성
  • 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

범주:

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:

요소백분율 범위기능
구리86.0 – 89.0%비금속, 연성 및 전도성 제공
주석(Sn)7.5 – 9.0%Increases strength and wear resistance
납(Pb)0.30 – 1.5%가공성 향상
아연(Zn)1.0 – 3.0%Enhances fluidity in casting, deoxidizer
니켈(Ni)1.0% maxImproves corrosion resistance
철(Fe)0최대 0.20%곡물 미세화제, 강도 증가
인(P)0.05 – 0.35%탈산제, 유동성 향상
안티몬 (SB)0최대 0.20%Enhances strength and hardness
유황(S)0.05% 최대Impurity, controlled to minimize negative effects
알루미늄(Al)0최대 .005%탈산제
실리콘(Si)0최대 .005%Improves wear resistance

기계적 성질

The mechanical properties of C90300 contribute to its suitability for various industrial applications:

재산
인장 강도(최소)40 ksi (276 MPa)
항복 강도(최소)20 ksi (138 MPa)
신장(분)20%
브리넬 경도70 HB (typical)
밀도0.319 lb/in³ (8.83 g/cm³)
탄성계수15.5 x 10^6 psi (107 GPa)

다양한 온도에서의 성능

C90300 maintains its properties across a range of temperatures:

온도 범위성능 특성
저온(-50°C ~ 0°C)Maintains ductility and strength
실온 (0 ° C ~ 30 ° C)대부분의 응용 프로그램에 대한 최적의 성능
온도 상승 (30 ° C ~ 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:

산업애플리케이션
선박Propeller hubs, bushings, valve components
자동차Thrust washers, bushings, wear plates
산업기계Gears, bearings, wear strips
석유 및 가스Pump components, valve seats
건설Bridge bearings, heavy equipment components
항공우주랜딩기어 부품, 부싱

모양 및 크기 가용성

C90300 is available in various forms to suit different manufacturing needs:

형태크기 범위노트
Round Bars10mm – 300mm diameterStandard lengths up to 3.6m
Hollow Bars20mm – 250mm OD, 10mm – 200mm IDCustom lengths available
접시5mm – 100mm thicknessWidth up to 1.2m, length up to 3m
튜브15mm – 200mm OD, 1.5mm – 25mm wall thicknessStandard lengths up to 3m
주물맞춤 크기Sand, centrifugal, and continuous casting available
단조품Up to 1000kg가능한 맞춤형

생산 표준

C90300 complies with several important standards:

기준설명
ASTM B505Standard Specification for Copper Alloy Continuous Castings
ASTM B271Standard Specification for Copper-Base Alloy Centrifugal Castings
ASTM B584Standard Specification for Copper Alloy Sand Castings for General Applications
SAE J461Copper-Base Alloy Castings
MIL-C-22229Military Specification: Castings, Bronze

국제 표준 및 해당 성적

C90300 has equivalent or similar grades in different countries:

국가/지역기준동등한/유사한 등급
미국ASTM/UNSC90300
X40CrMoV5-1 열간 가공 공구강은 다양한 응용 분야와 전 세계적으로 사용됩니다.CuSn8
일본JISCAC903
중국GBZCuSn8Pb1
영국학사PB3
독일에서G-CuSn8

용접특성

Welding C90300 requires specific techniques:

용접방법적당노트
가스 텅스텐 아크 용접 (GTAW)훌륭한Preferred for thin sections and precision work
가스 금속 아크 용접 (GMAW)좋은두꺼운 부분에 적합합니다
SMAW(차폐 금속 아크 용접)공정한적절한 전극 선택이 필요합니다
옥시아세틸렌 용접가난한높은 열 입력으로 인해 권장되지 않습니다
저항 용접공정한제한된 응용 프로그램

가공특성

C90300 can be processed using various methods:

프로세스적당노트
가공훌륭한Good machinability, produces smooth finishes
형성공정한Limited cold formability due to high tin content
주조훌륭한캐스팅 애플리케이션에 널리 사용됩니다
단조공정한Hot forging possible, limited cold forging
열처리좋은Can be strengthened through heat treatment

세련

Polishing C90300 can enhance its appearance and surface properties:

연마 방법유효성노트
기계적 연마훌륭한높은 광택을 달성합니다
화학적 연마좋은Suitable for complex shapes
전해연마매우 좋은부드럽고 밝은 마감 처리를 제공합니다
버핑훌륭한For final finish and high shine

열처리

Heat treatment can modify the properties of C90300:

열처리목적프로세스
가열 냉각스트레스 완화, 연화Heat to 550-650°C, slow cool
용액 처리균질화Heat to 760-780°C, water quench
노화경화강도와 경도를 높여라Heat to 350-400°C for 2-4 hours, air cool

냉간 가공

Cold working can alter the mechanical properties of C90300:

콜드 작업 방법속성에 미치는 영향
냉간 압연강도를 높이고 연성을 줄입니다
냉간 인발표면 마감, 치수 정확도를 향상시킵니다
냉간 단조Limited applicability, may require intermediate annealing
쇼트 피닝Improves fatigue resistance

장점과 단점

C90300 tin bronze has several pros and cons:

장점단점
고강도Higher cost compared to lower tin bronzes
우수한 내마모성제한된 성형성
좋은 내식성순수한 구리보다 낮은 전기 전도도
낮은 마찰 계수Potential for dezincification in certain environments
우수한 가공성고속 애플리케이션에는 적합하지 않음
무거운 하중에 적합May require special welding procedures

유사 제품 및 비교

C90300 is part of a family of tin bronzes. Here’s a comparison with similar alloys:

합금Cu%SN %기타 요소주요 차이점
C9030086-897.5-9Zn, Pb, Ni비교를위한 기본 합금
C9050086-899-11Ni, ZnHigher tin, increased hardness
C9070088-9010-12Ni더 높은 주석, 최대 경도
C8360084-864-6Zn, Pb주석, 연성 증가
C9220086-905.5-6.5Zn, PbLower 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.