CDA316 - UNS.C31600 Nickel Leaded Commercial Bronze

Specifications

C31600 Leaded Commercial Bronze

CDA316 – UNS.C31600 Nickel Leaded Commercial Bronze is also a free machining brass with a higher electrical and thermal conductivity than that of standard free machining brass,Very likely C31400, C31600 Nickel Leaded Commercial Bronze is not only comprise about 89% copper, 8% zinc, and 2% lead, but also contains 1% nickel. This alloy combines the natural corrosion resistance and machinability of C31400 with a higher tensile and yield strength thanks to the controlled addition of nickel. The relatively low zinc content provides excellent corrosion resistance in potable water along with a pleasing golden color that matches C22000 hardware. It also possesses a particular resistance to stress corrosion cracking, so it is an alloy suitable for outdoor use where higher strength is required in comparison with the C31400.

Typical Application for UNS.C31600 Nickel Leaded Commercial Bronze Alloys

Electrical : Electrical Connector
Fastener   : Fasteners, Nuts, Screws, Screw Machine Parts
Industrial : Hardware, Sprinkler Head Components

Available Sizes:
Custom Diameter & Sizes, Random Mill lengths

Available Products (forms)
Round bars, Flat bars, Square bars, Rectangular bars, Hexagon bars
Custom shapes are available upon request.

Chemical Composition:

Cu: 87.50-90.50%
Pb: 1.30-2.50%
Ni: 0.70-1.20% Max.
P:  0.04-0.10%
Fe: 0.10% Max.
Zn: Balance
Note: Copper plus additions equal 99.60% minimum.

Typical Physical Properties:

Specific Gravity: 8.86 g/cm3
Coefficient of Thermal Expansion per °C: 18.40 x 10-6 /K (20-300°C)
Electrical Conductivity (% IACS): 32.0% IACS @ 68 F
Thermal Conductivity (W/mk): 140.2 W/m . K at 20 C 
Modulus of Elasticity: 17000 ksi

Note: 
1). the units are based upon US Customary.
2). the typical physical properties apply to age hardened products.

International Specification:

Rods/Bars/Square/Hex.: UNS.C31600, ASTM B140, CDA 316

Note: 
ASTM: American Society for Testing and Materials 
Note: Unless otherwise specified, material will be produced to ASTM.

Mechanical Properties:

The detailed Mechanical Properties will be available on request from customers.

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