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Chemical Composition
Elements
Cu(1,2) Pb Zn Fe As Mn Si
(1) Cu + Sum of Named Elements 99.5% min.
(2) Cu value includes Ag.
Min (%) 75.0 0.50 0.03 2.5
Max (%) 80.0 1.5 Rem 0.20 0.06 0.40 3.5
Mechanical Properties *
Form Temper Temper Code Tensile Strength
(ksi)
YS-0.5% Ext
(ksi)
Elongation
(%)
Rockwell B scale Section Size
(in)
* Measured at room temperature, 68°F (20°C).
Rod 1/8 Hard H00 100 Typ
57 Typ
21 Typ
95 Typ
Soft Anneal O60 85 Typ
43 Typ
25 Typ
85 Typ
1
Soft Anneal O60 80 Typ
40 Typ
25 Typ
85 Typ
2
Soft Anneal O60 90 Typ
45 Typ
20 Typ
85 Typ
0.50
Physical Properties
Melting Point - Liquidus°F 1706
Densitylb/cu in. at 68°F 0.3
Specific Gravity 8.3
Electrical Conductivity% IACS at 68°F 8
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F 23
Coefficient of Thermal Expansion 68-57210 to -6 power per °F (68 – 572°F) 10.7
Modulus of Elasticity in Tensionksi 16000
Fabrication Properties
Technique Suitability
Capacity for Being Hot Formed Excellent
Machinability Rating 70
Common Fabrication Processes

No fabrication process properties for this alloy

Thermal Properties

No thermal properties for this alloy

Typical uses
Product Category Product Reason Category Reason
Industrial Valve Stems Corrosion Resistance Corrosion Resistance
Valve Stems Corrosion Resistance Dezincification Resistance
Valve Stems Machining Characteristics Machinability
Valve Stems Mechanical Properties Moderate Strength
Applicable Specifications
Form Specific Sub-Form Application System Standard Description
Rod ASTM B371/B371M COPPER-ZINC-SILICON ALLOY ROD
Corrosion Properties

No Corrosion Properties Available.