C63200

Description

An American nickel-aluminium bronze with a unique combination of properties resulting in high strength, good fatigue, excellent corrosion resistance in sea water. C63200 benefits from a quench and temper heat treatment to enhance mechanical properties. The heat treatment was developed to maximise the corrosion resistance in sea water where it is used extensively in marine defence applications. Its non-sparking and wear properties makes it a excellent choice for weapon handling systems. The alloy has a proven track record having been incorporated in the US submarine build program for many decades and has now been used for wider applications, within commercial marine and petrochemical industries. This is a wrought alloy that benefits from extreme consistency in properties, fine uniform grain structure and low cost volumetric inspection. Furthermore representative test pieces are taken giving accurate analysis of properties from material to component.

Fasteners	Industrial	Marine
Bolting	Bearing Cages	Drive Shafts, Marine Service
Fasteners, Sea Water	Bushings
Nuts	Cams
	Sea Water Pump Bodies
	Sea Water Valves
	Shafts
	Sleeve Bearings
	Valve Stems

COMMON FABRICATION PROCESSES

Hot Forming
Welding

CHEMICAL COMPOSITION

Elements
Cu^(1,2)	Pb	Fe⁽³⁾	Ni^(4,5)	Al	Mn	Si
(1) Cu value includes Ag. (2) Cu + Sum of Named Elements 99.5% min. (3) Fe content shall not exceed Ni content. (4) Ni value includes Co. (5) Fe content shall not exceed Ni content.
Min (%)			3.5	4.0	8.7	1.2
Max (%)	Rem	0.02	4.3	4.8	9.5	2.0	0.10

MECHANICAL PROPERTIES

Form	Temper	Temper Code	Tensile Strength (ksi)	YS-0.5% Ext (ksi)	Elongation (%)	Rockwell B scale	Torsion Modulus (ksi)	Izod (ft-lbs)	Compressive Strength .001 in. set/in. (ksi)	Reduction of Area (%)	Section Size (in)
* Measured at room temperature, 68°F (20°C).
Forgings	Light Anneal	O50	100 Typ	45 Typ	22 Typ	92 Typ					5
Plate	Light Anneal	O50	95 Typ	47 Typ	22 Typ	89 Typ	6.4 Typ	17 Typ	110 Typ	18 Typ	0.5
	Light Anneal	O50	100 Typ	50 Typ	20 Typ	92 Typ					0.25
	Light Anneal	O50	90 Typ	45 Typ	25 Typ	85 Typ					1
Rod	Light Anneal	O50	103 Typ	52 Typ	24 Typ	94 Typ					2
	Light Anneal	O50	105 Typ	53 Typ	22 Typ	96 Typ					1
	Light Anneal	O50	102 Typ	51 Typ	24 Typ	93 Typ					3

PHYSICAL PROPERTIES

Melting Point – Liquidus°F	1940
Melting Point – Solidus°F	1905
Densitylb/cu in. at 68°F	0.276
Specific Gravity	7.64
Electrical Conductivity% IACS at 68°F	7
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F	20
Coefficient of Thermal Expansion 68-57210 to -6 power per °F (68 – 572°F)	9
Specific Heat CapacityBtu/ lb /°F at 68°F	0.105
Modulus of Elasticity in Tensionksi	17000
Modulus of Rigidityksi	6400

FABRICATION PROPERTIES

Technique	Suitability
Soldering	Fair
Brazing	Fair
Oxyacetylene Welding	Not Recommended
Gas Shielded Arc Welding	Excellent
Coated Metal Arc Welding	Good
Spot Weld	Good
Seam Weld	Fair
Butt Weld	Good
Capacity for Being Cold Worked	Fair
Capacity for Being Hot Formed	Good
Forgeability Rating	70
Machinability Rating	30

APPLICABLE SPECIFICATIONS

Form	Specific Sub-Form	Application	System	Standard	Description
Bar			ASTM	B124/B124M	COPPER AND COPPER-ALLOY FORGING ROD, BAR AND SHAPES
Electrode		Welding	MILITARY	MIL-E-23765/3	ELECTRODES, WELDING, BARE, COPPER AND COPPER ALLOY
Electrode		Welding	AWS	A5.6	COPPER AND COPPER ALLOY COVERED ELECTRODES
Forgings, Die (Hot Pressed)			ASME	SB283	COPPER AND COPPER ALLOY DIE FORGINGS (HOT PRESSED)
Forgings, Die (Hot Pressed)			ASTM	B283/B283M	COPPER AND COPPER ALLOY DIE FORGINGS (HOT PRESSED)
Plate & Sheet	for Pressure Vessels, Condensers & Heat Exchangers		ASTM	B171/B171M	COPPER ALLOY CONDENSER TUBE PLATES
Plate & Sheet	for Pressure Vessels, Condensers & Heat Exchangers		ASME	SB171	COPPER ALLOY CONDENSER TUBE PLATES
Rod			ASTM	B124/B124M	COPPER AND COPPER-ALLOY FORGING ROD, BAR AND SHAPES
Rod, Bar & Shapes	Aluminum Bronze		ASTM	B150/B150M	ALUMINUM BRONZE ROD, BAR AND SHAPES
Rod, Bar & Shapes	Aluminum Bronze		ASME	SB150	ALUMINUM BRONZE ROD, BAR, AND SHAPES
Shapes			ASTM	B124/B124M	COPPER AND COPPER-ALLOY FORGING ROD, BAR AND SHAPES