C94700

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Product Description: Nickel Tin Bronze
Solids: 1/2" to 10" OD
Tubes: 1" to 16" OD
Rectangles: Up to 20"
Standard Lengths: 144"
Shape/Form: semi-finished, mill stock or near-net shapes, anode, bar stock, billet/bloom, squares, hex, plate, profile or structural shape, flats/rectangular bar

Typical Uses

Electrical: circuit breaker parts
Industrial: feeding mechanisms, gears, shift forks, piston cylinders, wear guides, valve components, bearings, nozzles

Note: Also available in a heat-treated condition.

Similar or Equivalent Specification

CDA ASTM ASARCON SAE AMS Federal Military Other
C94700 B505
947
B292, A
50N     QQ-C-390, F2    

Chemical Composition (according to ASTM B505/B505M-14)

Alloy Cu% Sn% Pb% Zn% Fe% Ni%1 Sb% P% S% Al% Mn% Si%
1Ni value includes Co.
Note: Cu + Sum of Named Elements, 98.7% min. Single values represent maximums.
C94700 85.00-
90.00
4.50-
6.00
 
0.09
1.00-
2.50
 
0.25
4.50-
6.00
 
0.15
 
0.05
 
0.05
 
0.005
 
0.20
 
0.005

Mechanical Properties (according to ASTM B505/B505M-14)

Tensile Strength (min) Yield Strength (at .5% extension under load min) Elongation (in 2in. or 50mm min, %) Brinell Hardness (min) Remarks
Ksi MPa Ksi MPa      
45 310 20 138 25 N/A  

Machinability

Alloy Rating Density
C94700 20 0.320

Physical Properties (provided by CDA)

  US Customary Metric
Melting Point - Liquidus 1880° F 1027° C
Melting Point - Solidus 1660° F 904° C
Density 0.32 lb/in3 at 68° F 8.86 gm/cm3 at 20° C
Specific Gravity 8.86 8.86
Electrical Resistivity 31.20 ohms-cmil/ft at 68° F 54.0 microhm-cm at 20° C
Electrical Conductivity 12% IACS at 68° F 0.07 MegaSiemens/cm at 20° C
Thermal Conductivity 31.20 Btu · ft/(hr · ft2 · °F) at 68° F 54.0 W/m at 20° C
Coefficient of Thermal Expansion 10.9 ·10-6 per °F (68°-392° F) 18.8 ·10-6 per °C (20°-200° C)
Specific Heat Capacity 0.090 Btu/lb/°F at 68° F 377.1 J/kg at 293° C
Modulus of Elasticity in Tension 15000 ksi 103400 MPa

Fabrication Properties (provided by CDA)

Joining Technique Suitability
Soldering Excellent
Brazing Excellent
Oxyacetylene Welding Fair
Gas Shielded Arc Welding Good
Coated Metal Arc Welding Good

Thermal Properties (provided by CDA)

Treatment Temp./Time - US Temp./Time - SI
Stress Temperature 500 260
Solution Minimum 1425 775
Solution Maximum 1475 802
Solution Time 2.0
Solution Medium Water
Precipitation Value 580 305
Precipitation Time 5.0
Precipitation Medium Water
Annealing Minimum    
Annealing Maximum    
Annealing Time  
Hot Works Minimum    
Hot Works Maximum    

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