Copper Alloys, Aluminium BronzeC63000 (B150) Bar & Forgings

A high strength nickel aluminum bronze with good corrosion resistance in sea water.

ASTM B150: C63000 (AMS4640) is one of the most commonly used American grades of nickel aluminium bronze and contains around 10% aluminium, 5% nickel and 3% iron.

B150 C63000 offers an array of properties including high strength and hardness, excellent resistance to wear, shock and abrasion. Another major benefit of this alloy is its ability to offer a high retention of its mechanical properties at elevated temperatures. C63000 / AMS 4640 is readily hot worked and offers a good machinability.

The C63000 (AMS4640) can also offer additional properties including good erosion, corrosion and cavitation resistance in seawater, as well as resistance to dilute sulphuric, hydrochloric and non-oxidising acids.

Range Enquiry

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Related Specifications

AMS 4640
UNS C63000
ASTM B150
BSEN12163: CW307G
CA104
CA105
C63020
BS2874
BS2875
2.0966
NF A51-116
NF L14-705
CuAl10Ni5Fe4
CuAl9Ni5Fe3 (FR)
CuAl9Ni5Fe4 (FR)

Properties

Chemical Composition

Chemical Element	% Present
Iron (Fe)	2.00 - 4.00
Manganese (Mn)	0.00 - 1.50
Aluminium (Al)	9.00 - 11.00
Nickel (Ni)	4.00 - 5.50
Silicon (Si)	0.00 - 0.25
Tin (Sn)	0.00 - 0.20
Zinc (Zn)	0.00 - 0.30
Copper (Cu)	Balance

Mechanical Property	Value
Elongation A50 mm	10 %
Hardness Rockwell B	180-240 HRB

Physical Property	Value
Density	7.58 g/cm³
Melting Point	1035-1054 °C
Thermal Conductivity	38-46 W/m.K
Electrical Resistivity	7-9 % IACS

Applications

Aerospace landing gear components
Marine fasteners, hardware and fittings
Thrust washers
Gears
Control bushes, valve spindles and components
Faucet balls, springs & worm wheels
Non-sparking safety tooling
Wear plates
Valve stems and seats
Welding clamps
Fasteners
Bearing bushes

Characteristics

Very good strength and toughness
High resistance to corrosion and erosion
Retention of properties at cryogenic temperatures
Excellent resistance to shock, wear and abrasion
Spark resistance
Good machinability
Readily hot worked
Good resistance to dilute sulphuric, hydrochloric and non-oxidising acids

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Disclaimer

This Data is indicative only and as such is not to be relied upon in place of the full specification. In particular, mechanical property requirements vary widely with temper, product and product dimensions. All information is based on our present knowledge and is given in good faith. No liability will be accepted by the Company in respect of any action taken by any third party in reliance thereon. Please note that the 'Datasheet Update' date shown above is no guarantee of accuracy or whether the datasheet is up to date.

The information provided in this datasheet has been drawn from various recognised sources, including EN Standards, recognised industry references (printed S online) and manufacturers' data. No guarantee is given that the information is from the latest issue of those sources or about the accuracy of those sources. Material supplied by the Company may vary significantly from this data but will conform to all relevant and applicable standards. As the products detailed may be used for a wide variety of purposes and as the Company has no control over their use; the Company specifically excludes all conditions or warranties expressed or implied by statute or otherwise as to dimensions, properties and/or fitness for any particular purpose, whether expressed or implied. Advice given by the Company to any third party is given for that party's assistance only and without liability on the part of the Company. All transactions are subject to the Company's current Conditions of Sale. The extent of the Company's liabilities to any customer is clearly set out in those Conditions; a copy of which is available on request.