Metallurgical Specifications of Aluminum Bronze C63000

General Characteristics
This aluminum Nickel Bronze C6300 alloy is a special high strength copper aluminum alloy containing 81% copper, 10% aluminum, 5% nickel, 4% iron, which is an excellent choice for applications involving heavy loads, abrasive wear resistant, friction, abrasive wear and corrosion. The addition of nickel increases the alloys strength without diminishing its excellent ductility, toughness and corrosion resistance. Typical applications for C63000 nickel aluminum bronze include aircraft landing gear components strut bearings, main pistons, trunnion bearings and similar vital components.
Typical Chemical Composition

Weight % Al Fe Mn Si Sn Cu Ni Zn Others

Minimum 9.00 2.00 — — — 78.00 4.00 — —

Maximum 11.00 4.00 1.50 0.25 0.20 85.00 5.50 0.30 0.50

Weight %	Al	Fe	Mn	Si	Sn	Cu	Ni	Zn	Others
Minimum	9.00	2.00	—	—	—	78.00	4.00	—	—
Maximum	11.00	4.00	1.50	0.25	0.20	85.00	5.50	0.30	0.50

Characteristics		English	Metric
Nominal density (68°F/20°C)		0.274 lbs/in³	7.58 g/cm³
Melting range		1895°F-1931°F	1035°C-1055°C
Specific heat (212 °F/100°C)		0.0896 BTU/lb – °F	375 J/KG- °K
Coefficient of thermal expansion	Linear 68°F – 572°F 20°C – 300°C	9.00 micro in/in- °F	16.2 micro in/in- °K
Thermal Conductivity	68°F / 20°C	33.9 BTU/ft- hr – °F	37.7 W/m – °K
Electrical resistivity	68°F / 20°C	144 nΩ ∙ m
Magnetic Permeability		1.05

			Tensile					Hardness
Form	Temper	Section size	Ultimate		Yield		Elongation in HD, min	Brinell (3000 Kg)
		Inches (mm)	KSI	MPa	KSI	MPa	%
Rod	Hot or Cold Finished and heat treated	to 1” (25.4)	110	759	68	469	10	201-248
		to 2” (50.8)	110	759	60	414	10	201-248
		to 3” (76.2)	105	724	55	379	10	187-241
		3” (76.2) to 12” (304.8)	100	690	50	345	10	187-241
		12” (304.8) Plus	80	552	40	276	17	148-178

Aluminum Bronze Alloy C63000