Find suppliers for this alloyC74500
Chemical Composition
Element
Cu(1,2)Pb(3)ZnFeNi(4)Mn
(1) Cu value includes Ag. (2) Cu + Sum of Named Elements 99.5% min. (3) 0.05% Pb, max. for rod, wire, and tube. (4) Ni value includes Co.
Min (%)63.59.0
Max (%)66.50.09Rem0.2511.00.50
Mechanical Properties*
Form
Temper
Temper Code
Tensile Strength
(ksi)
YS-0.2% Offset
YS-0.5% Ext
(ksi)
Elongation
(%)
Rockwell B scale
Rockwell F scale
Rockwell 30T scale
Shear Strength
(ksi)
Section Size
(in)
Cold Work
(%)
Flat Products1/2 HardH0273   Typ
60   Typ
12   Typ
80   Typ
70   Typ
50   Typ
0.04
1/4 HardH0165   Typ
25   Typ
45   Typ
63   Typ
70   Typ
45   Typ
0.04
1/8 HardH0060   Typ
35   Typ
34   Typ
60   Typ
55   Typ
43   Typ
0.04
Extra HardH0695   Typ
76   Typ
3   Typ
92   Typ
78   Typ
59   Typ
0.04
HardH0486   Typ
75   Typ
4   Typ
89   Typ
76   Typ
55   Typ
0.04
Nominal Grain Size 0.015 mmOS01560   Typ
28   Typ
36   Typ
52   Typ
85   Typ
51   Typ
0.04
Nominal Grain Size 0.025 mmOS02556   Typ
23   Typ
40   Typ
42   Typ
80   Typ
44   Typ
0.04
Nominal Grain Size 0.035 mmOS03553   Typ
20   Typ
43   Typ
35   Typ
76   Typ
38   Typ
41   Typ
0.04
Nominal Grain Size 0.050 mmOS05051   Typ
19   Typ
46   Typ
28   Typ
71   Typ
34   Typ
0.04
Nominal Grain Size 0.070 mmOS07049   Typ
18   Typ
49   Typ
22   Typ
67   Typ
30   Typ
0.04
WireHardH04130   Typ
1   Typ
0.0884
H04120   Typ
3   Typ
0.0875
H0485   Typ
7   Typ
0.0837
H0472   Typ
10   Typ
0.0820
H04105   Typ
5   Typ
0.0860
H0465   Typ
25   Typ
0.0810
Nominal Grain Size 0.015 mmOS01563   Typ
35   Typ
0.08
Nominal Grain Size 0.025 mmOS02558   Typ
40   Typ
0.08
Nominal Grain Size 0.035 mmOS03556   Typ
45   Typ
0.08
Nominal Grain Size 0.050 mmOS05052   Typ
48   Typ
0.08
Nominal Grain Size 0.070 mmOS07050   Typ
50   Typ
0.08
* Measured at room temperature, 68°F (20°C).
Physical Properties
Melting Point - Liquidus°F1870
Densitylb/cu in. at 68°F0.314
Specific Gravity8.69
Electrical Conductivity% IACS at 68°F9
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F26
Coefficient of Thermal Expansion 68-57210⁻⁶ per °F (68 – 572°F)9.1
Specific Heat CapacityBtu/ lb /°F at 68°F0.09
Modulus of Elasticity in Tensionksi17500
Modulus of Rigidityksi6600
Fabrication Properties
Technique Suitability
SolderingExcellent
BrazingExcellent
Oxyacetylene WeldingGood
Gas Shielded Arc WeldingFair
Coated Metal Arc WeldingNot Recommended
Spot WeldGood
Seam WeldFair
Butt WeldGood
Capacity for Being Cold WorkedExcellent
Capacity for Being Hot FormedPoor
Machinability Rating20
Common Fabrication Processes
  • Blanking
  • Drawing
  • Etching
  • Forming and Bending
  • Heading and Upsetting
  • Roll Threading and Knurling
  • Shearing and Spinning
  • Squeezing and Swaging
    
Thermal Properties
Treatment Minimum* Maximum*
* Temperature is measured in Fahrenheit.
Annealing11001400
Typical uses
Product Category Product Reason Category Reason
ConsumerHollow WareAppearanceColor
Hollow WareCorrosion ResistanceCorrosion Resistance
Hollow WareForming CharacteristicsFormability
Hollow WareMechanical PropertiesModerate Strength
Hollow WarePlating CharacteristicsPlateable
Name PlatesAppearanceColor
Name PlatesCorrosion ResistanceCorrosion Resistance
Name PlatesForming CharacteristicsFormability
Name PlatesMechanical PropertiesModerate Strength
Name PlatesPlating CharacteristicsPlateable
ElectricalConnectorsCorrosion ResistanceCorrosion Resistance
ConnectorsCorrosion ResistanceCorrosion Resistance to Salt Water
ConnectorsForming CharacteristicsFormability
ConnectorsMechanical PropertiesModerate to High Strength
FastenersRivetsAppearanceColor
RivetsCorrosion ResistanceCorrosion Resistance
RivetsForming CharacteristicsFormability
RivetsMechanical PropertiesModerate Strength
ScrewsAppearanceColor
ScrewsCorrosion ResistanceCorrosion Resistance
ScrewsMechanical PropertiesModerate Strength
Slide FastenersAppearanceColor
Slide FastenersCorrosion ResistanceCorrosion Resistance
Slide FastenersForming CharacteristicsFormability
Slide FastenersMechanical PropertiesModerate Strength
IndustrialEtching StockAppearanceColor
Etching StockCorrosion ResistanceCorrosion Resistance
Etching StockForming CharacteristicsFormability
Etching StockMechanical PropertiesModerate Strength
Etching StockPlating CharacteristicsPlateable
Optical PartsCorrosion ResistanceCorrosion Resistance
Optical PartsForming CharacteristicsFormability
Optical PartsMechanical PropertiesModerate Strength
Platers BarAppearanceColor
Platers BarCorrosion ResistanceCorrosion Resistance
Platers BarPlating CharacteristicsPlateable
Applicable Specifications
Form System Standard Description
BarASTMB122/B122MCOPPER-NICKEL-ZINC ALLOY (NICKEL-SILVER) AND COPPER-NICKEL PLATE, SHEET, STRIP, AND ROLLED BAR
ASTMB151/B151MCOPPER-NICKEL-ZINC ALLOY (NICKEL-SILVER) AND COPPER-NICKEL ROD AND BAR
PlateASTMB122/B122MCOPPER-NICKEL-ZINC ALLOY (NICKEL-SILVER) AND COPPER-NICKEL PLATE, SHEET, STRIP, AND ROLLED BAR
RodASTMB151/B151MCOPPER-NICKEL-ZINC ALLOY (NICKEL-SILVER) AND COPPER-NICKEL ROD AND BAR
SheetASTMB122/B122MCOPPER-NICKEL-ZINC ALLOY (NICKEL-SILVER) AND COPPER-NICKEL PLATE, SHEET, STRIP, AND ROLLED BAR
StripASTMB122/B122MCOPPER-NICKEL-ZINC ALLOY (NICKEL-SILVER) AND COPPER-NICKEL PLATE, SHEET, STRIP, AND ROLLED BAR
WireASTMB206/B206MCOPPER-NICKEL-ZINC ALLOY (NICKEL-SILVER WIRE) AND COPPER-NICKEL ALLOY WIRE
Corrosion Properties

No information available.