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Chemical Composition
Elements
Cu(1,2) Cd
(1) Cu + Sum of Named Elements 99.5% min.
(2) Cu value includes Ag.
Min (%) 0.50
Max (%) Rem 1.20
Mechanical Properties *
Form Temper Temper Code Tensile Strength
(ksi)
YS-0.2% Offset
(ksi)
YS-0.5% Ext
(ksi)
Elongation
(%)
Rockwell B scale Rockwell F scale Shear Strength
(ksi)
Fatigue Strength**
(ksi)
Section Size
(in)
Cold Work
(%)
* Measured at room temperature, 68°F (20°C). ** Fatigue Strength: 100 x 106 cycles, unless indicated as [N] x 106.
Flat Products Extra Spring H10 72 Typ
59 Typ
1 Typ
75 Typ
0.04
Hard H04 60 Typ
45 Typ
5 Typ
64 Typ
0.04
Nominal Grain Size 0.025 mm OS025 35 Typ
11 Typ
52 Typ
54 Typ
0.04
Spring H08 64 Typ
3 Typ
73 Typ
0.04
Rod Hard H04 73 Typ
70 Typ
69 Typ
9 Typ
73 Typ
56 Typ
30 Typ 0.5
Hard H04 58 Typ
45 Typ
12 Typ
65 Typ
0.5 25
Nominal Grain Size 0.025 mm OS025 36 Typ
12 Typ
57 Typ
46 Typ
0.5
Nominal Grain Size 0.050 mm OS050 35 Typ
6.8 Typ
7 Typ
56 Typ
46 Typ
27 Typ
15 Typ 0.5
Wire Hard H04 100 Typ
1 Typ
0.01 99
Hard H04 70 Typ
55 Typ
6 Typ
0.08
Hard H04 88 Typ
1.5 Typ
0.08 96
Nominal Grain Size 0.025 mm OS025 38 Typ
12 Typ
50 Typ
0.08
Spring H08 80 Typ
66 Typ
2 Typ
0.08
Physical Properties
Melting Point - Liquidus°F 1969
Melting Point - Solidus°F 1886
Densitylb/cu in. at 68°F 0.321
Specific Gravity 8.89
Electrical Conductivity% IACS at 68°F 90
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F 208
Coefficient of Thermal Expansion 68-21210 to -6 power per °F (68 – 212°F) 9.4
Coefficient of Thermal Expansion 68-39210 to -6 power per °F (68 – 392°F) 9.6
Coefficient of Thermal Expansion 68-57210 to -6 power per °F (68 – 572°F) 9.8
Specific Heat CapacityBtu/ lb /°F at 68°F 0.09
Modulus of Elasticity in Tensionksi 17000
Modulus of Rigidityksi 6400
Fabrication Properties
Technique Suitability
Soldering Excellent
Brazing Excellent
Oxyacetylene Welding Good
Gas Shielded Arc Welding Good
Coated Metal Arc Welding Not Recommended
Spot Weld Not Recommended
Seam Weld Not Recommended
Butt Weld Good
Capacity for Being Cold Worked Excellent
Capacity for Being Hot Formed Good
Machinability Rating 20
Common Fabrication Processes
  • Drawing
  • Etching
  • Forming and Bending
  • Heading and Upsetting
  • Hot forging
  • Piercing
  • Punching
Thermal Properties
Treatment Minimum* Maximum*
* Temperature is measured in Fahrenheit.
Annealing 800 1400
Hot Working Temperature 1400 1600
Typical uses
Product Category Product Reason Category Reason
Electrical Cable Wrap Conductivity (Electrical) Electrical Conductivity
Cable Wrap Conductivity (Thermal) Thermal Conductivity
Cable Wrap Corrosion Resistance Corrosion Resistance
Cable Wrap Mechanical Properties Moderate Strength
Cable Wrap Solderability Solderability
Connectors Conductivity (Electrical) Electrical Conductivity
Connectors Conductivity (Thermal) Thermal Conductivity
Connectors Corrosion Resistance Corrosion Resistance
Connectors Mechanical Properties Moderate Strength
Connectors Solderability Solderability
Connectors Welding Characteristics Arc Erosion Resistant
Electric Blanket Elements Conductivity (Electrical) Electrical Conductivity
Electric Blanket Elements Conductivity (Thermal) Thermal Conductivity
Electric Blanket Elements Forming Characteristics Formability
Electric Blanket Elements Mechanical Properties Moderate Strength
Heating Pad Elements Conductivity (Electrical) Electrical Conductivity
Heating Pad Elements Conductivity (Thermal) Thermal Conductivity
Heating Pad Elements Forming Characteristics Formability
Heating Pad Elements Mechanical Properties Moderate Strength
High Strength Transmission Lines Conductivity (Electrical) Electrical Conductivity
High Strength Transmission Lines Conductivity (Thermal) Thermal Conductivity
High Strength Transmission Lines Corrosion Resistance Corrosion Resistance
High Strength Transmission Lines Mechanical Properties High Strength
Rail bands Conductivity (Electrical) Electrical Conductivity
Rail bands Conductivity (Thermal) Thermal Conductivity
Rail bands Corrosion Resistance Corrosion Resistance
Rail bands Mechanical Properties Moderate Strength
Rail bands Welding Characteristics Arc Erosion Resistant
Spring Contacts Conductivity (Electrical) Electrical Conductivity
Spring Contacts Conductivity (Thermal) Thermal Conductivity
Spring Contacts Corrosion Resistance Corrosion Resistance
Spring Contacts Mechanical Properties High Modulus of Elasticity
Spring Contacts Mechanical Properties Moderate Strength
Spring Contacts Solderability Solderability
Spring Contacts Welding Characteristics Arc Erosion Resistant
Switch Gear Components Conductivity (Electrical) Electrical Conductivity
Switch Gear Components Conductivity (Thermal) Thermal Conductivity
Switch Gear Components Corrosion Resistance Corrosion Resistance
Switch Gear Components Mechanical Properties Moderate Strength
Switch Gear Components Solderability Solderability
Switch Gear Components Welding Characteristics Arc Erosion Resistant
Trolley Wire Conductivity (Electrical) Electrical Conductivity
Trolley Wire Conductivity (Thermal) Thermal Conductivity
Trolley Wire Corrosion Resistance Corrosion Resistance
Trolley Wire Mechanical Properties Moderate Strength
Trolley Wire Welding Characteristics Arc Erosion Resistant
Wave Guide Cavities Conductivity (Electrical) Electrical Conductivity
Wave Guide Cavities Conductivity (Thermal) Thermal Conductivity
Wave Guide Cavities Corrosion Resistance Corrosion Resistance
Wave Guide Cavities Mechanical Properties Moderate Strength
Wave Guide Cavities Solderability Solderability
Applicable Specifications

No applicable specifications for this alloy

Corrosion Properties

No Corrosion Properties Available.