Material – ASTM B271 Nickel Alumium Bronze UNS C95520

Standard Specification for Copper-Base Alloy Centrifugal Castings

Group - Non-Ferrous Copper Alloy

Sub Group - ASTM B271 Copper-Base Alloy Centrifugal Castings

Application - Intended for Valve, Pump, General Engineering, Automotive and Other Industries

Grade Belongs to the Industry - Rod, Bar, Tube and Shapes

Chemical Composition
TinSn %0.250 max.
LeadPb %0.030 max.
ZincZn %0.300 max.
IronFe %4.000 - 5.500
Ni + CoNi% + Co% 4.200 - 6.000-
AluminiumAl %10.500 - 11.500
ManganeseMn %1.500 max.
SiliconSi %0.150 max.
CopperCu %74.500 min.
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Heat Treatment
As-Cast or Solution Annealing or Annealing or Normalizing
Mechanical Properties
Tensile Strength in Mpa-
Yield Strength in Mpa-
Elongation in %-
Reduction of Area in %-
Hardness in BHN-
Impact in Joule-

Cross Reference Table

Material Standard Country Grade Belong to the Industry
B30 C95520 ASTM USA Ingot and Casting
B271 C95520 ASTM USA Casting
B505 C95520 ASTM USA Casting
SB-148 C95520 ASME USA Casting
78Cu-11Al-5.1Ni-4.8Fe SAE USA Casting
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