Nickel Aluminium Bronze AMS 4881 (UNS C99520):-

Nickel Aluminium Bronze Sizes available: AMS 4881  SOLID BAR 1/2" - 8" diameter HOLLOW BAR 5/8" - 2 1/2". For all other stock availability contact Sales.

UNS British Specs American Spec
C95520 DELTA AB29 AMS 4881
SAE J461
SAE J462

Technical Data Sheet

Chemical Composition Limits
Weight % Cu Al Cr Co Fe Pb Mn Ni Si Sn Zn
AMS 4881  74.5 min 10.5-11.5 0.05 0.2 4.0-5.5 0.03 1.5 4.2-6.0 0.15 0.25 0.30

Nickel Alumimium Bronze - Solid Bar AMS 4881. The additional heat treating process improves mechanical properties and the strength to weight ratio exceeding the range of typical aluminum bronzes. UNS C99520 is commonly used in applications involving heavy loads abrasion, friction, and deformation at high temperatures. In many cases UNS C99520 can replace UNS C63020 with the advantage of this material being available in tube form, which provides economic cost savings to you the customer.

Typical Mechanical Properties

Material Type Tensile Strength ksi Yield Strength ksi Elongation 4D %
AMS 4881 Separately Cast Specimins Sand Cast 125 95 2
AMS 4881 Separately Cast Specimins Centifugally 130 95 3


ASTM B-505
AMS 4881
SAE J462, J461
ASTM B-271
UNS C95520 
Euro Equivalents Designation
CuAl10Fe5Ni5-B | CB333G
EN 1982:1998-11

Harsh Steel export Copper AMS 4881 to below countries.

Harsh steel is a major stockist and Exporter of Copper AMS 4881 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.

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