C90300 High Tin Bronze Product Introduction:

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

  • Yüksek mukavemet ve mükemmel aşınma direnci
  • İyi korozyon direnci
  • Suitable for heavy load and low-speed applications
    • Main applications:
  • Bearings and gears
  • Marine propeller hubs
  • Valve components
    • Processing characteristics:
  • Excellent casting properties
  • İyi işlenebilirlik
    • 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

Kategori:

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.

Kimyasal bileşim

The chemical composition of C90300 is crucial to its performance characteristics:

ÖğeYüzde AralığıFunction
Bakır86.0 – 89.0%Base metal, provides ductility and conductivity
Kalay (Sn)7.5 – 9.0%Increases strength and wear resistance
Kurşun (Pb)0.30 – 1.5%Improves machinability
Çinko (Zn)1.0 – 3.0%Enhances fluidity in casting, deoxidizer
Nikel (Ni)1.0% maxImproves corrosion resistance
Demir (Fe)0maksimum %0,20Grain refiner, increases strength
Fosfor (P)0.05 – 0.35%Deoxidizer, improves fluidity
Antimon (Sb)0maksimum %0,20Enhances strength and hardness
Kükürt (S)0maksimum %0,05Impurity, controlled to minimize negative effects
Alüminyum (Al)00,005% maksimumDeoxidizer
Silikon (Si)00,005% maksimumImproves wear resistance

Mekanik özellikler

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

MülkDeğer
Çekme Dayanımı (dak)40 ksi (276 MPa)
Akma Dayanımı (dak)20 ksi (138 MPa)
Uzama (dak)20%
Brinell Sertliği70 HB (typical)
Yoğunluk0.319 lb/in³ (8.83 g/cm³)
Esneklik Modülü15.5 x 10^6 psi (107 GPa)

Farklı Sıcaklıklarda Performans

C90300 maintains its properties across a range of temperatures:

Sıcaklık AralığıPerformans Özellikleri
Düşük Sıcaklık (-50°C ila 0°C)Maintains ductility and strength
Oda Sıcaklığı (0°C ila 30°C)Çoğu uygulama için optimum performans
Yüksek Sıcaklık (30°C ila 200°C)Gradual decrease in strength, still suitable for many applications
High Temperature (200°C to 300°C)Significant decrease in strength, limited applications

Endüstri Uygulamaları

C90300 finds use in various industries due to its unique properties:

EndüstriUygulamalar
DenizPropeller hubs, bushings, valve components
OtomotivThrust washers, bushings, wear plates
Endüstriyel MakinelerGears, bearings, wear strips
Yağ ve gazPump components, valve seats
YapıBridge bearings, heavy equipment components
Havacılıkİniş takımı bileşenleri, burçlar

Şekil ve Boyut Kullanılabilirliği

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

BiçimBoyut aralığıNotlar
Round Bars10mm – 300mm diameterStandard lengths up to 3.6m
Hollow Bars20mm – 250mm OD, 10mm – 200mm IDCustom lengths available
Tabaklar5mm – 100mm thicknessWidth up to 1.2m, length up to 3m
Tüpler15mm – 200mm OD, 1.5mm – 25mm wall thicknessStandard lengths up to 3m
DökümlerCustom sizesSand, centrifugal, and continuous casting available
DövmelerUp to 1000kgÖzel şekiller mümkündür

Üretim Standartları

C90300 complies with several important standards:

StandartTanım
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

Uluslararası Standartlar ve İlgili Sınıflar

C90300 has equivalent or similar grades in different countries:

Ülke/BölgeStandartEşdeğer/Benzer Sınıf
Amerika Birleşik DevletleriASTM/UNSC90300
AvrupaİÇİNDECuSn8
JaponyaOCAC903
ÇinBüyük BritanyaZCuSn8Pb1
İngiltereBSPB3
AlmanyaİTİBARENG-CuSn8

Kaynak Özellikleri

Welding C90300 requires specific techniques:

Kaynak YöntemiUygunlukNotlar
Gaz Tungsten Ark Kaynağı (GTAW)HarikaPreferred for thin sections and precision work
Gaz Metal Ark Kaynağı (GMAW)İyiDaha kalın bölümler için uygundur
Korumalı Metal Ark Kaynağı (SMAW)AdilUygun elektrot seçimi gerektirir
Oksiasetilen KaynağıFakirYüksek ısı girdisi nedeniyle önerilmez
Resistance WeldingAdilLimited applications

İşleme Özellikleri

C90300 can be processed using various methods:

İşlemUygunlukNotlar
İşlemeHarikaGood machinability, produces smooth finishes
ŞekillendirmeAdilLimited cold formability due to high tin content
DökümHarikaDöküm uygulamalarında yaygın olarak kullanılır
DövmeAdilHot forging possible, limited cold forging
Isı tedavisiİyiCan be strengthened through heat treatment

Parlatma

Polishing C90300 can enhance its appearance and surface properties:

Parlatma YöntemiVerimlilikNotlar
Mekanik ParlatmaHarikaYüksek parlaklık elde eder
Kimyasal ParlatmaİyiSuitable for complex shapes
Elektro-parlatmaÇok güzelPürüzsüz, parlak bir yüzey sağlar
BuffingHarikaFor final finish and high shine

Isı tedavisi

Heat treatment can modify the properties of C90300:

Isı tedavisiAmaçİşlem
TavlamaStres giderme, yumuşatmaHeat to 550-650°C, slow cool
Çözüm TedavisiHomogenizationHeat to 760-780°C, water quench
Age HardeningIncrease strength and hardnessHeat to 350-400°C for 2-4 hours, air cool

Soğuk İşleme

Cold working can alter the mechanical properties of C90300:

Soğuk Çalışma YöntemiÖzellikler Üzerindeki Etkisi
Soğuk HaddelemeMukavemeti artırır, sünekliği azaltır
Soğuk ÇekmeYüzey kalitesini ve boyutsal doğruluğu iyileştirir
Soğuk dövmeLimited applicability, may require intermediate annealing
Shot PeeningImproves fatigue resistance

Avantajlar ve dezavantajlar

C90300 tin bronze has several pros and cons:

AvantajlarıDezavantajları
Yüksek güçHigher cost compared to lower tin bronzes
Mükemmel aşınma direnciSınırlı şekillendirilebilirlik
İyi korozyon direnciSaf bakırdan daha düşük elektrik iletkenliği
Düşük sürtünme katsayısıPotential for dezincification in certain environments
İyi işlenebilirlikYüksek hızlı uygulamalar için uygun değildir
Ağır yükler için uygundurMay require special welding procedures

Benzer Ürünler ve Karşılaştırma

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

Alaşım% CuSn %Diğer UnsurlarTemel Farklılıklar
C9030086-897.5-9Zn, Pb, NiKarşılaştırma için temel alaşım
C9050086-899-11Ni, ZnHigher tin, increased hardness
C9070088-9010-12İçindeDaha da yüksek kalay, maksimum sertlik
C8360084-864-6Zn, PbDaha düşük kalay, daha fazla süneklik
C9220086-905.5-6.5Zn, PbLower tin, better for pressure-tight applications

Çözüm

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.