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C40860 Wrought BRASSES Copper-Zinc-Tin Alloys (Tin Brasses) true true https://api.copper.org/alloys.xhtml/C40860
Chemical Composition
Elements
Cu(1) Pb Sn Zn Fe P Ni
(1) Cu + Sum of Named Elements 99.7% min.
Min (%) 94.0 1.7 0.01 0.02 0.05
Max (%) 96.0 0.05 2.3 Rem 0.05 0.04 0.20
Mechanical Properties *
Form Temper Temper Code Tensile Strength
(ksi)		 YS-0.2% Offset
(ksi)		 Elongation
(%)
* Measured at room temperature, 68°F (20°C).
Flat Products 1/2 Hard H02 64 Typ
 51 Typ
 12 Typ
1/4 Hard H01 59 Typ
 41 Typ
 24 Typ
Extra Hard H06 92 Typ
 89 Typ
 4 Typ
Hard H04 80 Typ
 75 Typ
 6 Typ
Nominal Grain Size 0.015 mm OS015 53 Typ
 30 Typ
 42 Typ
Spring H08 96 Typ
 94 Typ
 3 Typ
Physical Properties
Melting Point - Liquidus°F 1930
Melting Point - Solidus°F 1895
Densitylb/cu in. at 68°F 0.32
Specific Gravity 8.86
Electrical Conductivity% IACS at 68°F 32
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F 80
Coefficient of Thermal Expansion 68-57210 to -6 power per °F (68 – 572°F) 10.1
Modulus of Elasticity in Tensionksi 17000
Modulus of Rigidityksi 6000
Fabrication Properties
Technique Suitability
Soldering Excellent
Brazing Excellent
Oxyacetylene Welding Good
Gas Shielded Arc Welding Good
Spot Weld Not Recommended
Seam Weld Not Recommended
Butt Weld Good
Capacity for Being Cold Worked Excellent
Capacity for Being Hot Formed Fair
Machinability Rating 20
Common Fabrication Processes

No fabrication process properties for this alloy

Thermal Properties
Treatment Minimum* Maximum*
* Temperature is measured in Fahrenheit.
Annealing 660 1350
Typical Uses

No information for this alloy

Applicable Specifications
Form Specific Sub-Form Application System Standard Description
Bar ASTM B591 COPPER-ZINC-TIN ALLOY PLATE, SHEET, STRIP, AND ROLLED BAR
Strip ASTM B591 COPPER-ZINC-TIN ALLOY PLATE, SHEET, STRIP, AND ROLLED BAR
ASTM B888/B88M COPPER ALLOY STRIP FOR USE IN MANUFACTURE OF ELECTRICAL CONNECTORS OR SPRING CONTACTS
Corrosion Properties

No Corrosion Properties Available.