Copper and Copper Alloys - AMS 4625

AMS 4625

AMS 4625 is a copper-tin alloy with a small amount of phosphorus. It has moderate strength, corrosion resistance and good bearing properties.

It has many uses within the aerospace industry, including bushings, landing gear parts, washers and track bearings.

Chemical Composition


Chemical Element % Present
Phosphorous (P) 0.0 - 0.20
Tin (Sn) 0.0 - 5.00
Copper (Cu) Balance


Physical PropertyValue
Density 56.79 g/cm³
Melting Point 927-1060 °C
Electrical Resistivity 52 x10^-6 Ω .m



Mechanical PropertyValue
Elongation A50 mm 15-25 %
Hardness Rockwell B 78 HRB
Tensile Strength 485 N/mm2
0.2% Proof Stress 400 N/mm2

Alloy Designations

ASTM B139 C51000 H04
AMS 4625
QQ-B-750 Amd 2 Composition A Hard

Supplied Forms

  • Bar
  • Castings
  • Extrusions
  • Forgings
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Datasheet Search

Last Datasheet Revision

18 July 2019


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 & 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.