Find suppliers for this alloyC38500
Chemical Composition
Element
Cu(1)PbZnFe
(1) Cu + Sum of Named Elements 99.5% min.
Min (%)55.02.5
Max (%)59.03.5Rem0.35
Mechanical Properties*
Form
Temper
Temper Code
Tensile Strength
(ksi)
YS-0.5% Ext
(ksi)
Elongation
(%)
Rockwell B scale
Torsion Modulus
(ksi)
Ultimate Tensile Strength in Shear
(ksi)
Section Size
(in)
ShapesAs Hot ExtrudedM3060   Typ
20   Typ
30   Typ
65   Typ
5.4   Typ
35   Typ
1
* Measured at room temperature, 68°F (20°C).
Physical Properties
Melting Point - Liquidus°F1630
Melting Point - Solidus°F1610
Densitylb/cu in. at 68°F0.306
Specific Gravity8.47
Electrical Conductivity% IACS at 68°F28
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F71
Coefficient of Thermal Expansion 68-57210⁻⁶ per °F (68 – 572°F)11.6
Specific Heat CapacityBtu/ lb /°F at 68°F0.09
Modulus of Elasticity in Tensionksi14000
Modulus of Rigidityksi5300
Fabrication Properties
Technique Suitability
SolderingExcellent
BrazingGood
Oxyacetylene WeldingNot Recommended
Gas Shielded Arc WeldingNot Recommended
Coated Metal Arc WeldingNot Recommended
Spot WeldNot Recommended
Seam WeldNot Recommended
Butt WeldFair
Capacity for Being Cold WorkedPoor
Capacity for Being Hot FormedExcellent
Machinability Rating90
Common Fabrication Processes
  • Hot Forging and Pressing
  • Hot forming and bending
  • Machining
    
Thermal Properties
Treatment Minimum* Maximum*
* Temperature is measured in Fahrenheit.
Annealing8001100
Hot Treatment11501350
Typical uses
Product Category Product Reason Category Reason
ArchitectureArchitectural Forgings, ExtrusionsAppearanceAppearance
Architectural Forgings, ExtrusionsAppearanceColor
Architectural Forgings, ExtrusionsCorrosion ResistanceCorrosion Resistance
Architectural Forgings, ExtrusionsForging CharacteristicsForgability
Architectural Forgings, ExtrusionsForming CharacteristicsFormability
Architectural Forgings, ExtrusionsForming CharacteristicsHot Workable
Architectural Forgings, ExtrusionsMachining CharacteristicsMachinability
Architectural Forgings, ExtrusionsMechanical PropertiesModerate Strength
Architectural MoldingsAppearanceColor
Architectural MoldingsCorrosion ResistanceCorrosion Resistance
Architectural MoldingsMechanical PropertiesModerate Strength
Bathroom Partition BracketsAppearanceColor
Bathroom Partition BracketsMechanical PropertiesStrength
Bathroom Partition BracketsPlating CharacteristicsChrome Plateable
Door FramesAppearanceColor
Door FramesCorrosion ResistanceCorrosion Resistance
Door FramesForging CharacteristicsForgability
Door FramesMachining CharacteristicsMachinability
Elevator TrimAppearanceColor
Elevator TrimFriction & Wear PropertiesWear Resistance
Elevator TrimMachining CharacteristicsMachinability
HandrailsAppearanceColor
HandrailsCorrosion ResistanceWeather Resistant - Corrosion
HandrailsMachining CharacteristicsMachinability
Privacy Sun GrillsAppearanceColor
Privacy Sun GrillsCorrosion ResistanceCorrosion Resistance
Privacy Sun GrillsMechanical PropertiesModerate Strength
Shower DoorsAppearanceColor
Shower DoorsMechanical PropertiesModerate Strength
Shower DoorsPlating CharacteristicsChrome Plateable
Store FrontsAppearanceAppearance
Store FrontsAppearanceColor
Store FrontsCorrosion ResistanceCorrosion Resistance
Store FrontsMachining CharacteristicsMachinability
Store FrontsMechanical PropertiesModerate Strength
Terrazzo StripAppearanceColor
ThresholdsAppearanceColor
ThresholdsCorrosion ResistanceWeather Resistant - Corrosion
ThresholdsFriction & Wear PropertiesWear Resistance
ThresholdsMachining CharacteristicsMachinability
TrimAppearanceAppearance
TrimCorrosion ResistanceCorrosion Resistance
TrimForming CharacteristicsFormability
TrimMachining CharacteristicsMachinability
TrimMechanical PropertiesModerate Strength
Window MullionsAppearanceColor
Window MullionsCorrosion ResistanceCorrosion Resistance
Window MullionsMechanical PropertiesModerate Strength
Builders HardwareButtsAppearanceAppearance
ButtsAppearanceColor
ButtsCorrosion ResistanceCorrosion Resistance
ButtsForming CharacteristicsFormability
ButtsMachining CharacteristicsMachinability
ButtsMechanical PropertiesModerate Strength
Drawer HandlesAppearanceColor
Drawer HandlesCorrosion ResistanceCorrosion Resistance
Drawer HandlesForging CharacteristicsForgability
Drawer HandlesForging CharacteristicsHot Die forgability
Drawer HandlesMachining CharacteristicsMachinability
Drawer PullsAppearanceColor
Drawer PullsCorrosion ResistanceCorrosion Resistance
Drawer PullsForging CharacteristicsForgability
Drawer PullsMachining CharacteristicsMachinability
HingesAppearanceColor
HingesCorrosion ResistanceCorrosion Resistance
HingesForging CharacteristicsForgability
HingesMachining CharacteristicsMachinability
Lock BodiesCorrosion ResistanceCorrosion Resistance
Lock BodiesCorrosion ResistanceWeather Resistant - Corrosion
Lock BodiesMachining CharacteristicsMachinability
Lock BodiesMechanical PropertiesModerate Strength
Lock CamsCorrosion ResistanceCorrosion Resistance
Lock CamsCorrosion ResistanceWeather Resistant - Corrosion
Lock CamsMachining CharacteristicsMachinability
Lock CamsMechanical PropertiesModerate Strength
Slide BoltsAppearanceColor
Slide BoltsCorrosion ResistanceCorrosion Resistance
Slide BoltsMechanical PropertiesModerate Strength
ConsumerFireplace ScreensAppearanceColor
Fireplace ScreensCorrosion ResistanceCorrosion Resistance
Fireplace ScreensForging CharacteristicsForgability
Fireplace ScreensMachining CharacteristicsMachinability
Funeral UrnsAppearanceColor
Funeral UrnsCorrosion ResistanceCorrosion Resistance
Funeral UrnsForging CharacteristicsForgability
Funeral UrnsMachining CharacteristicsMachinability
HandlesAppearanceColor
HandlesCorrosion ResistanceCorrosion Resistance
HandlesForging CharacteristicsForgability
HandlesMachining CharacteristicsMachinability
Hot Combs (to Straighten Hair)Conductivity (Thermal)Thermal Conductivity
Hot Combs (to Straighten Hair)Corrosion ResistanceCorrosion Resistance to Chemicals
Hot Combs (to Straighten Hair)Machining CharacteristicsMachinability
Hot Combs (to Straighten Hair)Mechanical PropertiesModerate Strength
Hot Combs (to Straighten Hair)Mechanical PropertiesRetains Strength
LampsAppearanceColor
LampsCorrosion ResistanceCorrosion Resistance
LampsForging CharacteristicsForgability
LampsMachining CharacteristicsMachinability
Picture FramesAppearanceColor
Picture FramesCorrosion ResistanceCorrosion Resistance
Picture FramesMechanical PropertiesModerate Strength
Squeegee RetainersCorrosion ResistanceCorrosion Resistance
Squeegee RetainersDurabilityDurability - Architecture
Squeegee RetainersMechanical PropertiesModerate Strength
Straight EdgesFriction & Wear PropertiesWear Resistance
IndustrialForgingsAppearanceAppearance
ForgingsAppearanceColor
ForgingsCorrosion ResistanceCorrosion Resistance
ForgingsForging CharacteristicsForgability
ForgingsForming CharacteristicsFormability
ForgingsForming CharacteristicsHot Workable
ForgingsMachining CharacteristicsMachinability
ForgingsMechanical PropertiesModerate Strength
GaugesCorrosion ResistanceCorrosion Resistance
GaugesFriction & Wear PropertiesWear Resistance
GaugesMachining CharacteristicsMachinability
GaugesMechanical PropertiesModerate Strength
Press Brake Ram ClampsCorrosion ResistanceCorrosion Resistance
Press Brake Ram ClampsFriction & Wear PropertiesWear Resistance
Press Brake Ram ClampsMechanical PropertiesModerate Strength
Valve SeatsCorrosion ResistanceCorrosion Resistance
Valve SeatsFriction & Wear PropertiesWear Resistance
Valve SeatsMachining CharacteristicsMachinability
Valve SeatsMechanical PropertiesModerate Strength
Valve StemsCorrosion ResistanceCorrosion Resistance
Valve StemsCorrosion ResistanceCorrosion Resistance to Fresh Water
Valve StemsCorrosion ResistanceCorrosion Resistance to Salt Water
Valve StemsFriction & Wear PropertiesWear Resistance
Valve StemsMachining CharacteristicsMachinability
Valve StemsMechanical PropertiesModerate Strength
Valve TrimCorrosion ResistanceCorrosion Resistance
Valve TrimFriction & Wear PropertiesWear Resistance
Valve TrimMachining CharacteristicsMachinability
Valve TrimMechanical PropertiesModerate Strength
ValvesCorrosion ResistanceCorrosion Resistance
ValvesFriction & Wear PropertiesWear Resistance
ValvesMachining CharacteristicsMachinability
ValvesMechanical PropertiesModerate Strength
Wheeled RacksCorrosion ResistanceCorrosion Resistance
Wheeled RacksFriction & Wear PropertiesWear Resistance
Wheeled RacksMechanical PropertiesModerate Strength
OrdnanceGun SightsCorrosion ResistanceCorrosion Resistance
Gun SightsDurabilityDurability - Architecture
Gun SightsFriction & Wear PropertiesWear Resistance
Applicable Specifications
Form System Standard Description
ShapesASTMB455COPPER-ZINC-LEAD ALLOY (LEADED-BRASS) EXTRUDED SHAPES
Corrosion Properties
Environmental Category Specific Environment Resistance Level Corrosion notes
ExcellentResistant at cryogenic and room temperatures
AlkaliAluminum HydroxideExcellentCorrosion increases at elevated temperatures and in presence of oxidizers such as chromates or hypochlorates
Ammonium HydroxidePoorReduced corrosion resistance due to soluble complex ion formation
Barium CarbonateExcellentCorrosion increases at elevated temperatures and in presence of oxidizers such as chromates or hypochlorates
Barium HydroxideGoodCorrosion increases at elevated temperatures and in presence of oxidizers such as chromates or hypochlorates
Black Liquor, Sulfate ProcessPoorSevere dezincification
Calcium HydroxideGoodCorrosion increases at elevated temperatures and in presence of oxidizers such as chromates or hypochlorates
LimeExcellentCorrosion increases at elevated temperatures and in presence of oxidizers such as chromates or hypochlorates
Lime-SulfurGoodCorrosion rate increases at elevated temperatures or with traces of moisture
Magnesium HydroxideExcellentCorrosion increases at elevated temperatures and in presence of oxidizers such as chromates or hypochlorates
Potassium CarbonateGoodCorrosion increases at elevated temperatures and in presence of oxidizers such as chromates or hypochlorates
Potassium HydroxideFairSusceptible to dezincification.
Sodium BicarbonateFairSusceptible to dezincification.
Sodium CarbonateGoodCorrosion increases at elevated temperatures and in presence of oxidizers such as chromates or hypochlorates
Sodium HydroxideFairSusceptible to dezincification.
Sodium PhosphateGood
Sodium SilicateGoodSusceptible to dezincification.
Sodium SulfideGoodCorrosion rate increases at elevated temperatures or with traces of moisture
AtmosphereAtmosphere, IndustrialGoodAffected by pollutants and other environmental factors. Hydrogen sulfide causes rapid tarnishing. Sulfur dioxide, nitrogen oxides and ammonia may cause stress corrosion cracking.
Atmosphere, MarineGoodProtective green basic copper chloride or carbonate patina. Sulfur dioxide, nitrogen oxides and ammonia may cause stress corrosion cracking.
Atmosphere, RuralExcellentLow corrosion rates, no localized attack
Chlor. organicCarbon Tetrachloride, DryExcellentSusceptible to dezincification.
Carbon Tetracholoride, MoistPoorSevere dezincification
Chloroform, DryExcellentCorrosion rate increases at elevated temperatures or with traces of moisture
Ethyl ChlorideFairSusceptible to dezincification.
Methyl Chloride, DryExcellentCorrosion rate increases at elevated temperatures or with traces of moisture
Trichlorethylene, DryExcellentCorrosion rate increases at elevated temperatures or with traces of moisture
Trichlorethylene, MoistFairSusceptible to dezincification.
Fatty acidOleic AcidFairSusceptible to dezincification.
Palmitic AcidFairSusceptible to dezincification.
Stearic AcidFairSusceptible to dezincification.
Food/beverageBeerGoodSusceptible to dezincification.
Beet Sugar SyrupsGoodSusceptible to dezincification.
Cane Sugar SyrupsGoodSusceptible to dezincification.
Carbonated BeveragesFairSusceptible to dezincification.
Carbonated WaterFairSusceptible to dezincification.
CiderFairSusceptible to dezincification.
CoffeeExcellentSusceptible to dezincification.
Corn OilGoodSusceptible to dezincification.
Cottonseed OilGoodSusceptible to dezincification.
Fruit JuicesPoorSusceptible to dezincification.
GelatineExcellentSusceptible to dezincification.
MilkGoodSusceptible to dezincification.
Sugar SolutionsGoodSusceptible to dezincification.
VinegarPoorSusceptible to dezincification.
GasAmmonia, Absolutely DryExcellentRapid corrosion increases with traces of moisture
Ammonia, MoistPoorMore corrosion resistant in dry gas
Carbon Dioxide, DryExcellentCorrosion increases with trace of moisture
Carbon Dioxide, MoistFairMore corrosion resistant in dry gas
HydrogenExcellentCopper and copper alloys containing copper oxide susceptible to attack
OxygenExcellentScaling at elevated temperatures
Halogen gasBromine, DryExcellentRapid corrosion increases with traces of moisture
Bromine, MoistPoorMore corrosion resistant in dry gas
Chlorine, DryExcellentRapid corrosion increases with traces of moisture
Chlorine, MoistPoorMore corrosion resistant in dry gas
HydrocarbonAcetyleneExcellentContaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly
AsphaltExcellentContaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly
BenzineExcellentContaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly
BenzolExcellentContaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly
ButaneExcellentContaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly
CreosoteGoodContaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly
Crude OilFairCareful consideration must be given to specific contaminants when selecting materials for this complex environment
FreonExcellentContaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly
Fuel OilGoodContaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly
GasolineExcellentContaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly
Hydrocarbons, PureExcellentContaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly
KeroseneExcellentContaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly
Natural GasExcellentContaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly
ParaffinExcellentContaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly
PropaneExcellentContaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly
TarNot RecommendedContaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly
TurpentineGoodContaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly
Inorg. acid non-ox.Boric AcidGoodSusceptible to dezincification.
Carbolic AcidGoodSusceptible to dezincification.
Hydrobromic AcidPoorSusceptible to dezincification.
Hydrochloric AcidPoorSusceptible to dezincification.
Hydrocyanic AcidPoorReduced corrosion resistance due to soluble complex ion formation
Hydrofluoric AcidPoorSusceptible to dezincification.
Hydrofluosilicic AcidPoorSusceptible to dezincification.
Phosphoric AcidPoorSusceptible to dezincification.
Sulfuric AcidPoorNot suitable for hot concentrated solutions
Inorg. acid ox.Chromic AcidPoorSevere oxidizing environment.
Nitric AcidPoorSevere oxidizing environment.
Sulfurous AcidPoorSusceptible to dezincification.
Liquid metalMercuryPoorSevere liquid metal embrittlement
MiscellaneousGlueGoodLow corrosion rates, no localized attack
Linseed OilGoodLow corrosion rates, no localized attack
RosinExcellentLow corrosion rates, no localized attack
SewageFairSusceptible to dezincification.
Soap SolutionsGoodDezincification may occur.
VarnishExcellentLow corrosion rates, no localized attack
Neutral/acid saltAlumPoor
AluminaExcellentLow corrosion rates, no localized attack
Aluminum ChloridePoorSevere dezincification
Aluminum SulfatePoorSusceptible to dezincification.
Ammonium ChloridePoorReduced corrosion resistance due to soluble complex ion formation
Ammonium SulfatePoorReduced corrosion resistance due to soluble complex ion formation
Barium ChloridePoorSevere dezincification
Barium SulfateExcellentLow corrosion rates, no localized attack
Barium SulfideGoodCorrosion affected by salt concentration, temperature, velocity, dissolved oxygen content and pollutants.
Calcium ChloridePoorSevere dezincification
Carbon DisulfideExcellentCorrosion affected by salt concentration, temperature, velocity, dissolved oxygen content and pollutants.
Magnesium ChloridePoorSevere dezincification
Magnesium SulfateFairSusceptible to dezincification.
Potassium ChloridePoorSevere dezincification
Potassium CyanidePoorReduced corrosion resistance due to soluble complex ion formation
Potassium Dichromate AcidPoorHighly oxidizing under acidic conditions
Potassium SulfateGoodSusceptible to dezincification.
Sodium BisulfatePoorSevere dezincification
Sodium ChloridePoorSevere dezincification
Sodium CyanidePoorLow corrosion rates, no localized attack
Sodium Dichromate, AcidPoorHighly oxidizing under acidic conditions
Sodium SulfateGoodSusceptible to dezincification.
Sodium SulfitePoorSevere dezincification
Sodium ThiosulfateGoodCorrosion affected by salt concentration, temperature, velocity, dissolved oxygen content and pollutants.
Zinc ChloridePoorSevere dezincification
Zinc SulfatePoorSevere dezincification
Org. solventAcetoneExcellentResistant up to 200F unless contaminated by water, acids, alkalies or salts
AlcoholsExcellentResistant up to 200F unless contaminated by water, acids, alkalies or salts
Amyl AcetateGood
Amyl AlcoholExcellent
Butyl AlcoholExcellentResistant up to 200F unless contaminated by water, acids, alkalies or salts
EthersExcellentResistant up to 200F unless contaminated by water, acids, alkalies or salts
Ethyl AcetateGood
Ethyl AlcoholExcellentResistant up to 200F unless contaminated by water, acids, alkalies or salts
Lacquer SolventsExcellentResistant up to 200F unless contaminated by water, acids, alkalies or salts
Methyl AlcoholExcellent
TolueneExcellentResistant up to 200F unless contaminated by water, acids, alkalies or salts
Organic acidAcetic AcidPoorSusceptible to dezincification.
Acetic AnhydridePoorSusceptible to dezincification.
Benzoic AcidGoodSusceptible to dezincification.
Butyric AcidFairSusceptible to dezincification.
Chloracetic AcidPoorSusceptible to dezincification.
Citric AcidFairSusceptible to dezincification.
Formic AcidFairSusceptible to dezincification.
Lactic AcidFairSusceptible to dezincification.
Oxalic AcidFairSusceptible to dezincification.
Tannic AcidGoodSusceptible to dezincification.
Tartaric AcidFairSusceptible to dezincification.
Trichloracetic AcidPoorSusceptible to dezincification.
Organic comp.AnilineFairStree corrosion cracking possible.
Aniline DyesFairStree corrosion cracking possible.
Castor OilExcellentLow corrosion rates, no localized attack
Ethylene GlycolGoodDezincification may occur.
FormaldehydeFairDezincification may occur.
FurfuralFairDezincification may occur.
GlucoseExcellentLow corrosion rates, no localized attack
GlycerineExcellentLow corrosion rates, no localized attack
LacquersExcellentLow corrosion rates, no localized attack
Oxidizing saltAmmonium NitratePoorReduced corrosion resistance due to soluble complex ion formation
Bleaching Powder, WetPoorSevere dezincification
BoraxExcellentLow corrosion rates, no localized attack
Bordeaux MixtureGoodSusceptible to dezincification.
Calcium BisulfitePoorSevere dezincification
Calcium HypochloritePoorSevere dezincification
Copper ChloridePoorSevere oxidizing environment.
Copper NitratePoorSevere dezincification
Copper SulfatePoorSevere dezincification
Ferric ChloridePoorSevere oxidizing environment.
Ferric SulfatePoorSevere oxidizing environment.
Ferrous ChloridePoorSevere dezincification
Ferrous SulfatePoorSevere dezincification
Hydrogen PeroxideFairSusceptible to dezincification.
Mercury SaltsPoorMay cause liquid metal embrittlement
Potassium ChromateExcellentSuitable for neutral or alkaline conditions
Silver SaltsPoorNoble metal salt, plates on copper surface
Sodium BisulfitePoorSusceptible to dezincification.
Sodium ChromateExcellentSuitable for neutral or alkaline conditions
Sodium HypochloritePoorSevere dezincification
Sodium NitrateFairSusceptible to dezincification.
Sodium PeroxidePoorSusceptible to dezincification.
Sulfur comp.Hydrogen Sulfide, DryExcellentCorrosion increases with trace of moisture
Hydrogen Sulfide, MoistFairMore corrosion resistant in dry gas
Sulfur Chloride, DryExcellentRapid corrosion increases with traces of moisture
Sulfur Dioxide, DryExcellentScaling at elevated temperatures
Sulfur Dioxide, MoistPoorMixed oxide and sulfide scale forms
Sulfur Trioxide, DryExcellentCorrosion increases with trace of moisture
Sulfur, DryExcellentCorrosion rate increases at elevated temperatures
Sulfur, MoltenPoorForms non-protective copper sulfide
WaterBrinesPoorIncreased corrosion with oxidizers, e.g. oxygen (air), chlorine, hypochlorites and ferric ions. Susceptible to dezincification with nitrates, sulfates, chlorides. Refer to specific salt solution rat
Mine WaterPoorAcidic waters containing oxidizers are highly corrosive.
Sea WaterFairCorrosion affected by salt concentration, temperature, velocity, dissolved oxygen content and pollutants. Dezincification may occur.
SteamFairDezincification may occur.
Water, PotableFairCorrosion affected by water chemistry (mineral content, acidity) system design and fabrication. Dezincification may occur.