Nickel Aluminium Bronze AMS 4590 (UNS C63020)

Sizes available: AMS 4590 SOLID BAR 3/4” - 8” diameter HR50: extruded / cold drawn / heat treated (3/4” - 3” diameter inclusive) TQ50: hot forged / heat treated (3 1/8“ - 8” diameter inclusive). For all other stock availability contact Sales.

UNS British Specs American Spec European Specs
C63020 DELTA CA34
AMS 4590

Technical Data Sheet

Chemical Composition Limits
Weight % Cu Al Cr Co Fe Pb Mn Ni Sn Zn Si
AMS 4590 74.5 10.0-11.0 0.05 0.2 4.0-5.5 0.03 1.5 4.2-6.0 0.25 0.30 0.15

C63020 (AMS 4590) is a Nickel Aluminum Bronze which is available in solid bar - AMS 4590

A special heat treatment process improves the mechanical properties beyond the range of commercial aluminum bronzes. This alloy is an extra high strength version of nickel aluminum bronze. It is used where parts require extra high strength and hardness with some ductility and toughness. Typical applications include military aircraft bushings involving heavy loads, abrasion and high deformation. The extra high strength characteristics provide extreme wear resistance for extreme loads, abrasive wear, and high impact landings (such as aircraft carrier landings).

Typical Mechanical Properties

Material Condition Size Tensile strength ksi Yield Strength ksi Elongation 4D % Hardness HRC (min)
AMS 4590 Solution Treated and Tempered Bar <1.00" 135 100 6 26
AMS 4590 Solution Treated and Tempered Bar 1.00" - 2.00" 130 95 6 26
AMS 4590 Solution Treated and Tempered Bar 2.00" - 4.00" 130 90 6 26

Physical Properties AMS 4590
Density (lb/Cu. in) - 269
Electrical Conductivity %IACS - 6% est.
Thermal Conductivity (CGS) - 0.11 est.


AMS 4590B Extrusions, Nickel - Aluminium Bronze, Solution Heat Treated and Tempered (TQ50)
ASTM B-150

Harsh Steel export Copper AMS 4590 to below countries.

Harsh steel is a major stockist and Exporter of Copper AMS 4590 to many countries of the world such as Singapore, Brisbane, Sydney, Melbourne, Australia, Houston, TX, San Diego, San Francisco, Atlanta, USA, Brentford, United Kingdom, Phoenix, Ireland, New Zealand and Canada, Western Australia , Queensland, New South Wales, South Australia, Victoria, Australian Capital Territory, Tasmania, Northern Territory, Ontario, British Columbia, Yukon Territory, Alberta, Manitoba, Saskatchewan, New foundland, Prince Edward Island, New Brunswick, Nova Scotia, Eastern Cape, Gauteng, Kwazulu-Natal, Western Cape, England, Scotland, Wales, Northern Ireland, Lagos, Abuja Capital Territory, Vadodara, Mumbai, Chennai, New Delhi, Mahape, Gurgaon, Noida, Bangalore, Coimbatore, Cochin, Ash Sharqiyah, Ar Riyad, Makkah, Dhahran, Riyadh, Jiddah, Jeddah, Masqat, Kwazulu-Natal, Gauteng, Western Cape, Free State, Eastern Cape, Alberta, Saskatchewan, British Columbia, Newfoundland, New Brunswick, Manitoba, Ontario, Nova Scotia, Quebec, Calgary, Edmonton, Vancouver, Toronto, Birmingham, Brentford, Manchester, Bristol, Sheffield, Milton Keynes, London, Poplar, Edinburgh, Thames Ditton.

Enquiry for Nickel Aluminium Bronze AMS 4640 (UNS C63000)