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Chemical Composition
Elements
Cu(1,2) Pb Zn Fe Si
(1) Cu + Sum of Named Elements 99.5% min.
(2) Cu value includes Ag.
Min (%) 80.0 3.5
Max (%) 83.0 0.30 Rem 0.20 4.5
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
0.75
1/8 Hard H00 100 Typ
57 Typ
21 Typ
95 Typ
0.75
Soft Anneal O60 85 Typ
43 Typ
25 Typ
1
Soft Anneal O60 77 Typ
40 Typ
25 Typ
2
Soft Anneal O60 90 Typ
45 Typ
20 Typ
0.5
Soft Anneal O60 90 Typ
45 Typ
20 Typ
85 Typ
0.5
Soft Anneal O60 80 Typ
40 Typ
25 Typ
85 Typ
2
Soft Anneal O60 85 Typ
43 Typ
25 Typ
85 Typ
1
Physical Properties
Melting Point - Liquidus°F 1685
Melting Point - Solidus°F 1510
Densitylb/cu in. at 68°F 0.296
Specific Gravity 8.19
Electrical Conductivity% IACS at 68°F 6.2
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F 15
Coefficient of Thermal Expansion 68-57210 to -6 power per °F (68 – 572°F) 11.2
Specific Heat CapacityBtu/ lb /°F at 68°F 0.09
Modulus of Elasticity in Tensionksi 16000
Fabrication Properties
Technique Suitability
Soldering Excellent
Brazing Excellent
Oxyacetylene Welding Good
Spot Weld Good
Seam Weld Good
Butt Weld Good
Capacity for Being Cold Worked Poor
Capacity for Being Hot Formed Excellent
Forgeability Rating 80
Machinability Rating 30
Common Fabrication Processes
  • Forging
  • Screw Machining
Thermal Properties
Treatment Minimum* Maximum*
* Temperature is measured in Fahrenheit.
Annealing 800 1200
Hot Working Temperature 1200 1600
Typical uses
Product Category Product Reason Category Reason
Industrial Valve Stems Corrosion Resistance Corrosion Resistance
Valve Stems Corrosion Resistance Dezincification Resistance
Valve Stems Mechanical Properties High 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.