Material – ASTM B271 Leaded Nickel Bronze UNS C97800

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 %4.000 - 5.500
LeadPb %1.000 - 2.500
ZincZn %1.000 - 4.000
IronFe %1.500 max.
Ni + CoNi% + Co% 24.000 - 27.000-
AluminiumAl %0.005 max.
SiliconSi %0.150 max.
AntimonySb %0.200 max.
SulphurS %0.080 max.
PhosphorusP %0.050 max.
OtherOt%1.000 max.
CopperCu %64.000 - 67.000
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Heat Treatment
As-Cast
Mechanical Properties
Tensile Strength in Mpa345 min.
Yield Strength in Mpa152 min.
Elongation in %10 min.
Reduction of Area in %-
Hardness in BHN-
Impact in Joule-

Cross Reference Table

Material Standard Country Grade Belong to the Industry
B149-11B ASTM USA Casting
B30 C97800 ASTM USA Ingot and Casting
B271 C97800 ASTM USA Casting
B505 C97800 ASTM USA Casting
B584 C97800 ASTM USA Casting
SB-505 C97800 ASME USA Casting
SB-584 C97800 ASME USA Casting