C90800 Product description:

AspectDescription
CompositionCopper (Cu): 88.0 – 90.0%
Tin (Sn): 7.0 – 9.0%
Zinc (Zn): ≤ 1.0%
Phosphorus (P): ≤ 0.35%
Lead (Pb): ≤ 0.05%
Nickel (Ni): ≤ 0.50%
Iron (Fe): ≤ 0.25%
Mechanical PropertiesTensile Strength: 380 MPa min
Yield Strength: 140 MPa min
Elongation: 20% min
Brinell Hardness: 70-90 HB
ApplicationsBearings, bushings, valve components, marine fittings, electrical contacts
StandardsASTM B505, SAE J461, J462, EN 1982: CC480K
FormsRods, bars, tubes, sheets, custom shapes
AdvantagesGood corrosion resistance, excellent machinability, moderate cost
DisadvantagesLower tensile strength compared to some alloys, limited availability in certain regions

 

Category:

Product Introduction: C90800 Tin Bronze

Chemical Composition

ElementComposition (%)Role
Copper (Cu)88.0 – 90.0Base metal, provides strength and conductivity
Tin (Sn)7.0 – 9.0Increases corrosion resistance and strength
Zinc (Zn)≤ 1.0Improves machinability and wear resistance
Phosphorus (P)≤ 0.35Enhances strength and wear resistance
Lead (Pb)≤ 0.05Improves machinability, reduces friction
Nickel (Ni)≤ 0.50Enhances strength and corrosion resistance
Iron (Fe)≤ 0.25Residual element, affects mechanical properties
Others≤ 0.5Includes trace elements, may refine grain structure

Mechanical Properties

PropertyValueDescription
Tensile Strength380 MPa minMaximum stress the material can withstand while being stretched or pulled
Yield Strength (0.5% ext.)140 MPa minStress at which the material begins to deform permanently
Elongation20% minMeasure of the material’s ability to stretch without breaking
Brinell Hardness70-90 HBResistance of the material to indentation or abrasion

Performance at Different Temperatures

Temperature (°C)Yield Strength (MPa)Elongation (%)Description
Room Temperature14020Typical conditions
100°C12018Elevated temperature conditions
200°C11016High temperature conditions

Product Forms and Sizes

Product FormDescription
RodsRound bars of various diameters
BarsSquare or rectangular bars
TubesHollow cylindrical shapes
SheetsFlat plates of varying thickness
Custom ShapesFor specific applications

Implementation Standards

StandardDescription
ASTM B505Standard specification for tin bronze rod, bar, and shapes
SAE J461, J462Society of Automotive Engineers standards for copper and copper alloys
EN 1982: CC480KEuropean standard for copper alloys in rod, bar, and tube form

Welding and Processing

ProcessDetails
WeldingGas metal arc welding (GMAW), TIG welding
BrazingSilver brazing with appropriate flux
MachinabilityExcellent, suitable for machining operations
PolishingAchieves smooth finish with standard polishing methods
Heat TreatmentAnnealing at specific temperatures to achieve desired properties
Cold ProcessingCan be cold worked to achieve specific shapes and sizes

Advantages and Disadvantages

AdvantagesDisadvantages
Good corrosion resistanceLower tensile strength compared to some alloys
Excellent machinabilityLimited availability in some regions
Suitable for bearings and bushings
Moderate cost

Similar Products and Comparison

MaterialCompositionSimilar Properties
C90700 BronzeCu: 88.0-90.0%, Sn: 10.0-11.5%Similar corrosion resistance, higher strength
C83600 Leaded Red BrassCu: 84.0-86.0%, Pb: 4.0-6.0%Lower corrosion resistance, lower strength

Summary

C90800 tin bronze is a versatile alloy known for its good corrosion resistance, excellent machinability, and suitability for bearings, bushings, valve and pump components, and electrical contacts. The alloy is available in various forms and sizes, conforming to international standards such as ASTM, SAE, and EN. Its properties make it suitable for applications where moderate strength, good machinability, and corrosion resistance are required.

This detailed overview provides comprehensive information about C90800 tin bronze, covering its composition, properties, applications, processing characteristics, standards, grades, and comparison with similar materials. Adjust specific values based on manufacturer specifications and standards to accurately reflect current data.