Find suppliers for this alloyC68700
Chemical Composition
Element
Cu(1,2)PbZnFeAlAs
(1) Cu value includes Ag. (2) Cu + Sum of Named Elements 99.5% min.
Min (%)76.01.80.02
Max (%)79.00.07Rem0.062.50.06
Mechanical Properties*
Form
Temper
Temper Code
Tensile Strength
(ksi)
YS-0.5% Ext
(ksi)
Elongation
(%)
Rockwell F scale
TubeNominal Grain Size 0.025 mmOS02560   Typ
27   Typ
55   Typ
77   Typ
* Measured at room temperature, 68°F (20°C).
Physical Properties
Melting Point - Liquidus°F1780
Melting Point - Solidus°F1710
Densitylb/cu in. at 68°F0.301
Specific Gravity8.33
Electrical Conductivity% IACS at 68°F23
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F58
Coefficient of Thermal Expansion 68-57210⁻⁶ per °F (68 – 572°F)10.3
Specific Heat CapacityBtu/ lb /°F at 68°F0.09
Modulus of Elasticity in Tensionksi16000
Modulus of Rigidityksi6000
Fabrication Properties
Technique Suitability
SolderingFair
BrazingGood
Oxyacetylene WeldingFair
Gas Shielded Arc WeldingFair
Coated Metal Arc WeldingNot Recommended
Spot WeldGood
Seam WeldFair
Butt WeldGood
Capacity for Being Cold WorkedExcellent
Capacity for Being Hot FormedFair
Machinability Rating30
Common Fabrication Processes
  • Forming and Bending
    
Thermal Properties
Treatment Minimum* Maximum*
* Temperature is measured in Fahrenheit.
Annealing8001100
Hot Treatment14001600
Typical uses
Product Category Product Reason Category Reason
IndustrialCondenser TubeConductivity (Thermal)Thermal Conductivity
Condenser TubeCorrosion ResistanceCorrosion Resistance to Salt Water
Condenser TubeMechanical PropertiesHigh Strength
Distiller TubesCorrosion ResistanceCorrosion Resistance
Distiller TubesCorrosion ResistanceCorrosion Resistance to Fresh Water
Distiller TubesCorrosion ResistanceCorrosion Resistance to Salt Water
Distiller TubesMechanical PropertiesModerate Strength
Evaporator TubesCorrosion ResistanceCorrosion Resistance
Evaporator TubesCorrosion ResistanceCorrosion Resistance to Fresh Water
Evaporator TubesCorrosion ResistanceCorrosion Resistance to Salt Water
Evaporator TubesMechanical PropertiesModerate Strength
FerrulesCorrosion ResistanceCorrosion Resistance
FerrulesCorrosion ResistanceCorrosion Resistance to Fresh Water
FerrulesCorrosion ResistanceCorrosion Resistance to Salt Water
FerrulesMechanical PropertiesModerate Strength
Heat Exchanger TubesCorrosion ResistanceCorrosion Resistance
Heat Exchanger TubesCorrosion ResistanceCorrosion Resistance to Fresh Water
Heat Exchanger TubesCorrosion ResistanceCorrosion Resistance to Salt Water
Heat Exchanger TubesMechanical PropertiesModerate Strength
Applicable Specifications
Form Specific Sub-Form Application System Standard Description
Condenser & Heat Exchanger Tube with Integral FinsWeldedASTMB956/B956MWELDED COPPER AND COPPER-ALLOY CONDENSER AND HEAT EXCHANGER TUBES WITH INTEGRAL FINS
TubeCondenser TubeASMESB111COPPER AND COPPER ALLOY SEAMLESS CONDENSER TUBES & FERRULE STOCK
FinnedASMESB359COPPER & COPPER ALLOY SEAMLESS CONDENSER & HEAT EXCHANGER TUBES WITH INTEGRAL FINS
U-BendASMESB395U-BEND SEAMLESS COPPER & COPPER ALLOY HEAT EXCHANGER & CONDENSER TUBE
WeldedASMESB543WELDED COPPER AND COPPER ALLOY TUBE
Condenser TubeASTMB111/B111MCOPPER AND COPPER ALLOY SEAMLESS CONDENSER TUBES AND FERRULE STOCK
FinnedASTMB359/B359MCOPPER AND COPPER-ALLOY SEAMLESS CONDENSER AND HEAT EXCHANGER TUBES WITH INTEGRAL FINS
U-BendASTMB395/B395MU-BEND SEAMLESS COPPER AND COPPER ALLOY HEAT EXCHANGER AND CONDENSER TUBES
WeldedASTMB543/B543MWELDED COPPER AND COPPER ALLOY HEAT EXCHANGER TUBE
Corrosion Properties
Environmental Category Specific Environment Resistance Level
Excellent
AlkaliAluminum HydroxideExcellent
Ammonium HydroxidePoor
Barium CarbonateExcellent
Barium HydroxideExcellent
Black Liquor, Sulfate ProcessFair
Calcium HydroxideExcellent
LimeExcellent
Lime-SulfurGood
Magnesium HydroxideExcellent
Potassium CarbonateExcellent
Potassium HydroxideGood
Sodium BicarbonateGood
Sodium CarbonateExcellent
Sodium HydroxideGood
Sodium PhosphateExcellent
Sodium SilicateExcellent
Sodium SulfideGood
AtmosphereAtmosphere, IndustrialExcellent
Atmosphere, MarineExcellent
Atmosphere, RuralExcellent
Chlor. organicCarbon Tetrachloride, DryExcellent
Carbon Tetracholoride, MoistGood
Chloroform, DryExcellent
Ethyl ChlorideGood
Methyl Chloride, DryExcellent
Trichlorethylene, DryExcellent
Trichlorethylene, MoistGood
Fatty acidOleic AcidExcellent
Palmitic AcidGood
Stearic AcidGood
Food/beverageBeerExcellent
Beet Sugar SyrupsExcellent
Cane Sugar SyrupsExcellent
Carbonated BeveragesGood
Carbonated WaterGood
CiderExcellent
CoffeeExcellent
Corn OilExcellent
Cottonseed OilExcellent
Fruit JuicesFair
GelatineExcellent
MilkExcellent
Sugar SolutionsExcellent
VinegarFair
GasAmmonia, Absolutely DryExcellent
Ammonia, MoistPoor
Carbon Dioxide, DryExcellent
Carbon Dioxide, MoistGood
HydrogenExcellent
OxygenExcellent
Halogen gasBromine, DryExcellent
Bromine, MoistFair
Chlorine, DryExcellent
Chlorine, MoistFair
HydrocarbonAcetylenePoor
AsphaltExcellent
BenzineExcellent
BenzolExcellent
ButaneExcellent
CreosoteExcellent
Crude OilGood
FreonExcellent
Fuel OilExcellent
GasolineExcellent
Hydrocarbons, PureExcellent
KeroseneExcellent
Natural GasExcellent
ParaffinExcellent
PropaneExcellent
TurpentineExcellent
Inorg. acid non-ox.Boric AcidExcellent
Carbolic AcidGood
Hydrobromic AcidFair
Hydrochloric AcidFair
Hydrocyanic AcidPoor
Hydrofluoric AcidPoor
Hydrofluosilicic AcidGood
Phosphoric AcidFair
Sulfuric AcidFair
Inorg. acid ox.Chromic AcidPoor
Nitric AcidPoor
Sulfurous AcidGood
Liquid metalMercuryPoor
MiscellaneousGlueExcellent
Linseed OilGood
RosinExcellent
SewageExcellent
Soap SolutionsExcellent
VarnishExcellent
Neutral/acid saltAlumGood
AluminaExcellent
Aluminum ChlorideFair
Aluminum SulfateGood
Ammonium ChloridePoor
Ammonium SulfatePoor
Barium ChlorideFair
Barium SulfateExcellent
Barium SulfideGood
Calcium ChlorideGood
Carbon DisulfideExcellent
Magnesium ChlorideGood
Magnesium SulfateExcellent
Potassium ChlorideGood
Potassium CyanidePoor
Potassium Dichromate AcidPoor
Potassium SulfateExcellent
Sodium BisulfateGood
Sodium ChlorideGood
Sodium CyanidePoor
Sodium Dichromate, AcidPoor
Sodium SulfateExcellent
Sodium SulfiteGood
Sodium ThiosulfateGood
Zinc ChlorideFair
Zinc SulfateGood
Org. solventAcetoneExcellent
AlcoholsExcellent
Amyl AcetateExcellent
Amyl AlcoholExcellent
Butyl AlcoholExcellent
EthersExcellent
Ethyl AcetateExcellent
Ethyl AlcoholExcellent
Lacquer SolventsExcellent
Methyl AlcoholExcellent
TolueneExcellent
Organic acidAcetic AcidFair
Acetic AnhydrideFair
Benzoic AcidExcellent
Butyric AcidExcellent
Chloracetic AcidFair
Citric AcidExcellent
Formic AcidExcellent
Lactic AcidExcellent
Oxalic AcidExcellent
Tannic AcidExcellent
Tartaric AcidExcellent
Trichloracetic AcidFair
Organic comp.AnilineFair
Aniline DyesFair
Castor OilExcellent
Ethylene GlycolExcellent
FormaldehydeExcellent
FurfuralExcellent
GlucoseExcellent
GlycerineExcellent
LacquersExcellent
Oxidizing saltAmmonium NitratePoor
Bleaching Powder, WetGood
BoraxExcellent
Bordeaux MixtureExcellent
Calcium BisulfiteGood
Calcium HypochloriteGood
Copper ChlorideFair
Copper NitrateFair
Copper SulfateGood
Ferric ChloridePoor
Ferric SulfatePoor
Ferrous ChlorideGood
Ferrous SulfateGood
Hydrogen PeroxideGood
Mercury SaltsPoor
Potassium ChromateExcellent
Silver SaltsPoor
Sodium BisulfiteGood
Sodium ChromateExcellent
Sodium HypochloriteFair
Sodium NitrateGood
Sodium PeroxideFair
Sulfur comp.Hydrogen Sulfide, DryExcellent
Hydrogen Sulfide, MoistFair
Sulfur Chloride, DryExcellent
Sulfur Dioxide, DryExcellent
Sulfur Dioxide, MoistGood
Sulfur Trioxide, DryExcellent
Sulfur, DryGood
Sulfur, MoltenPoor
WaterBrinesGood
Mine WaterFair
Sea WaterExcellent
SteamExcellent
Water, PotableExcellent