Info

Product Description Nickel-Tin Bronze
Solids: 1/2" to 10" O.D.
Tubes: 1" to 16" O.D.
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 B505M B947 B292-A	50N			QQ-C-390, F2		Cast Nickel-Tin Bronze

Chemical Composition

Cu%	Pb%1	Sn%	Zn%	Fe%	P%	Ni%2	Al%	Mn%	S%	Sb%	Si%
Chemical Composition according to ASTM B505/B505M-18 1The mechanical properties of C94700 (heat treated) may not be attainable if the Pb content exceeds 0.01%. 2Ni value includes Co. Note: Cu + Sum of Named Elements, 98.7% min. Single values represent maximums.
85.00- 90.00	0.09	4.50- 6.00	1.00- 2.50	0.25	0.05	4.50- 6.00	0.005	0.20	0.05	0.15	0.005

Machinability

Copper Alloy UNS No.	Machinability Rating	Density (lb/in3 at 68 °F)
C94700	30	0.32

Mechanical Properties

Tensile Strength, min		Yield Strength, at .5% Extension Under Load, min		Elongation, in 2 in. or 50 mm min	Brinell Hardness (500 kg load)
Mechanical Properties according to ASTM B505/B505M-18
ksi	MPa	ksi	MPa	%	typical BHN
45	310	20	138	25	85

Physical Properties

	US Customary	Metric
Physical Properties provided by CDA
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 Conductivity	12% IACS at 68 °F	0.07 MegaSiemens/cm at 20 °C
Thermal Conductivity	31.2 Btu/sq ft/ft hr/°F at 68 °F	54 W/m at 20 °C
Coefficient of Thermal Expansion 68-392	10.9 ·10-6 per °F (68-392 °F)	18.8 ·10-6 per °C (20-200 °C)
Specific Heat Capacity	0.09 Btu/lb/°F at 68 °F	377.1 J/kg at 293 °C
Modulus of Elasticity in Tension	15000 ksi	103400 MPa

Fabrication Properties

Joining Technique	Suitability
Fabrication Properties provided by CDA
Soldering	Excellent
Brazing	Excellent
Oxyacetylene Welding	Fair
Gas Shielded Arc Welding	Good
Coated Metal Arc Welding	Good

Thermal Properties

Treatment	Temp./Time - US	Temp./Time - SI
Thermal Properties provided by CDA
Stress Temperature	500	260
Solution Minimum	1425	775
Solution Maximum	1475	802
Solution Time	2
Solution Medium	Water
Precipitation Value	580	305
Precipitation Time	5
Precipitation Medium	Air
Annealing Minimum
Annealing Maximum
Annealing Time
Hot Treatment Minimum
Hot Treatment Maximum

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C94700

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